A rubber tapping machine for cutting rubber tree bark

Abstract

The present invention discloses a rubber tapping machine for cutting the bark of rubber trees. The rubber tapping machine is composed of a rubber tapping trajectory control mechanism, a tool control mechanism, a fixed descending stroke control mechanism, and a rubber tapping machine tree-leaving alarm. The rotating square bar and the lead screw for controlling the rubber tapping trajectory are simultaneously connected to the motor, which is the only power source of the rubber tapping machine, through a speed change gear, and the active travel gear on the rotating square bar is meshed with the teeth on the inner wall of the inner gear ring. The tool control mechanism is composed of a ratchet gear connected to the motor gear and a slider mechanism. The fixed descending stroke control mechanism is composed of a ratchet pawl fixed on the inner gear ring, a positioning pin, a lead screw ratchet fixed on the lead screw, and a locking groove disk. The rubber tapping machine tree-leaving alarm is composed of a tree ring wire and a power failure alarm. The rubber tapping machine disclosed by the present invention reduces components including the power source through structural optimization design, reduces costs and failure rates, and improves control accuracy.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, in particular to a rubber tapping machine used for cutting the bark of rubber trees in the field. Background Art

[0002] The traditional method of collecting natural rubber is to cut it manually with a handheld rubber tapping knife. Although electric rubber tapping knives have appeared in recent years, they still require manual operation. The labor cost of rubber tapping is huge and it is difficult to meet market demand.

[0003] The cost, failure rate and control accuracy of rubber tapping machines have always been the main obstacles to the market promotion of rubber tapping machines. The existing rubber tapping machines have much room for improvement in these aspects. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a rubber tapping machine which can perform cutting stably and evenly and has low cost.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A rubber tapping machine, the improvement of which is that the rubber tapping machine comprises a rubber tapping trajectory control mechanism, a tool control mechanism, a fixed descending stroke control mechanism and a rubber tapping machine tree-leaving alarm.

[0007] The rubber tapping trajectory control mechanism is composed of an inner gear ring, a rotating square bar, a lead screw, and a speed-changing gear set; the tool control mechanism is composed of a ratchet gear, a slider mechanism, and a tool holder clamp; the fixed descending stroke control mechanism is composed of a pin-pulling pawl, a tooth-shifting pawl, a positioning pin, a lead screw ratchet on the fixed lead screw, and a lock groove disk; the rubber tapping machine's tree-leaving alarm is composed of a tree-ring wire and a power-off alarm.

[0008] Furthermore, in the rubber tapping trajectory control mechanism, the lead screw and the lifting gear nut are sheathed together; active travel gears are fixed at both ends of the rotating square bar, and the active travel gears are meshed with the teeth on the inner wall of the inner gear ring; the square hole gear and the lifting gear nut are connected to the motor gear through the speed gear.

[0009] Furthermore, in the rubber tapping trajectory control mechanism, the feed frame is mounted on the lead screw, the rotating square bar and the fixed square bar; the two ends of the lead screw, the rotating square bar and the fixed square bar are respectively mounted on the upper traveling frame and the lower traveling frame.

[0010] Furthermore, in the fixed descent stroke control mechanism, a positioning pin is installed on the upper walking frame or the lower walking frame, and a lead screw ratchet and a locking groove plate are fixed at the top or bottom of the lead screw; the pin pulling pawl fixed on the inner gear ring is linked to the positioning pin, and the positioning pin is locked with the locking groove plate.

[0011] Furthermore, in the fixed descending stroke control mechanism, the lead screw is fixedly connected to the lead screw ratchet, and the ratchet teeth of the lead screw ratchet are meshed with the shifting tooth pawl.

[0012] Furthermore, the tool control mechanism is composed of a ratchet gear connected to the motor, a slider mechanism and a tool holder clamp; the linkage arm of the tool holder clamp is connected through the cutting depth adjustment hole of the slider mechanism.

[0013] Furthermore, the forward pawl, return pawl, fixed teeth, non-return hook, non-return hook shift block, range-extending pad, range-extending pad shift block, and cutting depth adjustment hole in the slider mechanism are fixed on the slider.

[0014] Furthermore, the tool holder clamp is composed of a linkage arm, a tool holder frame, a tool head fixture and a torsion spring; the linkage arm and the tool holder frame are connected by a torsion spring and an axle pin.

[0015] Furthermore, the rubber tapping machine tree-leaving alarm is composed of a tree-loop wire and a power-off alarm.

[0016] The beneficial effect of the present invention is that the actions of the various components of the rubber tapping machine disclosed by the present invention are driven by one motor, which reduces the cost of the entire machine and reduces the failure rate.

[0017] In the rubber tapping machine disclosed by the present invention, the top and bottom of the lead screw for controlling longitudinal movement are respectively installed at the ends of the upper traveling frame and the lower traveling frame; the feed frame moves through the threaded connection, which effectively reduces the longitudinal stacking error and ensures the movement accuracy of the feed frame.

[0018] The rubber tapping machine disclosed in the present invention has a pin-pulling pawl and a tooth-shifting pawl fixedly mounted on the inner gear ring; a positioning pin mounted on the upper traveling frame or the lower traveling frame; a lead screw ratchet and a locking groove disk mounted on the top or bottom of the lead screw; the feed frame automatically moves down a set distance after each cutting is completed through the tooth-shifting pawl and the lead screw ratchet; and the lead screw is kept from rotating until the process is completed through the positioning pin and the locking groove disk during the rubber tapping cutting process. Specifically, the feed frame moves down a set distance by utilizing the return action of the rubber tapping machine, thereby simplifying the control mechanism.

[0019] The rubber tapping machine disclosed in the present invention completes the downward movement of the feed frame during the return process, thereby preventing the superposition of multiple actions from causing the motor output power to be excessive. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the structural diagram of the rubber tapping machine I;

[0021] Figure 2 It is a structural diagram of a fixed descending stroke control mechanism of a rubber tapping machine;

[0022] Figure 3 It is a schematic diagram of the knife holder clamp structure of the rubber tapping machine;

[0023] Figure 4 It is a schematic diagram of the power transmission structure of the rubber tapping machine;

[0024] Figure 5 It is a schematic diagram of the slider mechanism structure of the rubber tapping machine;

[0025] Figure 6 This is the structure diagram of the rubber tapping machine Figure II . DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] like Figure 1 As shown, this embodiment discloses a rubber tapping machine, which includes two upper and lower inner gear rings 1, inner gear ring support feet 2, and inner wall teeth 3 of the inner gear ring; Figure 2 As shown, a pin pulling pawl 18 and a tooth shifting pawl 19 are fixed on the outer wall of the inner gear ring.

[0028] like Figure 1 As shown, the feed frame 14 is mounted on the lead screw 8, the rotating square bar 5, and the fixed square bar 7; the two ends of the lead screw 8, the rotating square bar 5, and the fixed square bar 7 are respectively mounted on the upper traveling frame 6 and the lower traveling frame 16; the lead screw 8 is mounted on the upper traveling frame 6 and the lower traveling frame 16 through the shaft sleeve 13.

[0029] like Figure 1 , Figure 2 As shown, the lead screw ratchet 23, the lock groove plate 10, and the set lifting gear nut 24 are fixedly installed on the lead screw 8; the active travel gears 20 are installed at both ends of the rotating square bar 5.

[0030] like Figure 1 As shown, the active travel gear 20 is meshed with the inner wall teeth 3 of the inner gear ring 1, driving the upper travel frame 6, the lower travel frame 16 and the feed frame 14 to travel on the inner gear ring 1, completing the lateral travel of the tapping trajectory control mechanism.

[0031] like Figure 1 , Figure 4 As shown, the motor gear 34 connected to the motor 38, the speed gear set 40, the lifting gear nut 24, the ratchet gear 37, the square hole gear 41, and the transition gear 35 are all fixed on the feed frame 14; the lifting gear nut 24 rotates on the screw 8 to drive the feed frame 14 to rise and fall, completing the longitudinal movement of the rubber tapping trajectory control mechanism.

[0032] like Figure 4As shown, the lifting gear nut 24, the square hole gear 41 and the ratchet gear 37 are all connected to the motor gear 34, the only power source of the rubber tapping machine, through the speed change gear set 40 or the transition gear 35. The motor gear 34, the only power source, is connected to the lifting gear nut 24 through the transition gear 35, and the ratchet gear 37 and the square hole gear 41 are driven at the same time.

[0033] like Figure 2 As shown, a pin seat 21 for fixing a positioning pin 22 is installed on the upper walking frame 6 or the lower walking frame 16, and a connecting screw ratchet 23 and a locking groove disk 10 are fixed on the top or bottom of the screw 8. The pin pulling pawl 18 fixed on the inner gear ring is linked with the positioning pin 22, and the positioning pin 22 is locked with the locking groove disk 10. When the rubber is tapped, the pin pulling pawl 18 is pulled away from the positioning pin 22, unlocking the positioning pin 22 and the locking groove disk 10. Then, the tooth shifting pawl 19 shifts the ratchet teeth of the connecting screw ratchet 23 to make the screw rotate at a fixed angle, so that the knife feed frame 14 produces a longitudinal fixed descending stroke. When tapping rubber, the pin pulling pawl 18 and the tooth shifting pawl 19 do not interact with the connecting screw ratchet 23 and the locking groove disk 10.

[0034] like Figure 5 As shown, the slider mechanism 12 includes a ratchet gear 37, a slider 43, a return pawl 45, an advance pawl 27, a fixed tooth 42, a non-return hook 39, a non-return hook block 44, a long arm torsion spring 36, an extended range pad block 33, an extended range pad 28 and a cutting depth adjustment hole 30. When the ratchet gear 37 rotates clockwise, it engages with the advance pawl 27 and the fixed tooth 42 to drive the slider 43 forward; when the ratchet gear 37 rotates counterclockwise, it engages with the return pawl 45 and the fixed tooth 42 to drive the slider 43 backward.

[0035] like Figure 1 As shown, the upper traveling frame 6 and the lower traveling frame 16 are provided with a driven gear 9, a stabilizing sliding pad 15, and an inner gear ring roller 4. By rotating the active traveling gear 20 of the square bar 5, the stability of the transmission between the upper traveling frame 6, the lower traveling frame 16 and the inner gear ring is ensured.

[0036] like Figure 3 As shown, in this embodiment, the tool holder clamp 11 includes a linkage arm 31, a tool holder 29 and a tool head fixture 25. The linkage arm 31 is connected to the cutting depth adjustment hole 30 to adjust the contact depth between the knife and the tree. The torsion spring 32 ensures the contact elasticity of the tool holder 29.

[0037] like Figure 1 As shown, in this embodiment, the inner gear ring support foot 2 has a screw locking hole 17, and the inner gear ring 1 can be firmly positioned on the tree by screws.

[0038] like Figure 1 As shown, in this embodiment, the ring tree conductor 26 is connected to the power failure alarm.

[0039] One of the key points of the present invention is that a mechanism is installed on the inner gear ring to rotate the lead screw, thereby causing the feed frame mounted on the lead screw to produce a fixed descending stroke. The mechanism installed on the inner gear ring is not limited to a ratchet, but can be a bump block or a lever mechanism to rotate the lead screw; the mechanism installed on the lead screw is not limited to a fixed lead screw ratchet and a locking groove plate, but can also be other forms of toggled mechanism deformation.

[0040] The second key point of the present invention is that the fixed teeth, return pawls and advance pawls included in the slider are not limited to one, and can be any combination of them; the ratchet gear can also be transformed into other mechanisms for moving the pawls.

Claims

1. A rubber tapping machine for cutting the bark of a rubber tree, characterized in that: The rubber tapping machine comprises a rubber tapping trajectory control mechanism, a tool control mechanism, a fixed descending stroke control mechanism and a rubber tapping machine tree-leaving alarm; The rubber tapping trajectory control mechanism is composed of an inner gear ring, a rotating square bar, a lead screw, and a speed gear set; the tool control mechanism is composed of a ratchet gear, a slider mechanism, and a tool holder clamp; the fixed descending stroke control mechanism is composed of a pin-pulling pawl, a tooth-shifting pawl, a positioning pin, a lead screw ratchet on the fixed lead screw, and a locking groove disk; the rubber tapping machine tree-leaving alarm is composed of a tree-loop wire and a power-off alarm; During the return stroke of rubber tapping, the pin-pulling pawl pulls away from the locking pin, unlocking the locking pin and the locking groove plate; then the tooth-pulling pawl pulls the ratchet teeth of the connecting screw ratchet wheel to make the screw rotate at a fixed angle, thereby making the feed frame produce a longitudinal fixed descending stroke; The lead screw and the lifting gear nut are assembled together; active travel gears are fixed at both ends of the rotating square bar, and the active travel gears are meshed with the inner wall teeth of the inner gear ring; the square hole gear and the lifting gear nut are connected to the motor gear through the speed gear set; the square hole gear, the speed gear set, and the motor gear are all fixed on the feed frame; The feed frame is mounted on the lead screw, the rotating square bar and the fixed square bar; the two ends of the lead screw, the rotating square bar and the fixed square bar are respectively mounted on the upper traveling frame and the lower traveling frame; A positioning pin is installed on the upper walking frame or the lower walking frame, and the lead screw ratchet and the locking groove plate are fixed at the top or bottom of the lead screw; the pin-pulling pawl fixed on the inner gear ring is linked with the positioning pin, and the positioning pin is locked with the locking groove plate; The lead screw is fixedly connected to the lead screw ratchet, and the ratchet teeth of the lead screw ratchet are meshed with the shifting tooth pawl.

2. A rubber tapping machine for cutting the bark of a rubber tree according to claim 1, characterized in that: The tool control mechanism is composed of a ratchet gear connected to a motor, a slider mechanism and a tool holder clamp; a linkage arm of the tool holder clamp is connected through a cutting depth adjustment hole of the slider mechanism.

3. A rubber tapping machine for cutting the bark of rubber trees according to claim 2, characterized in that: The advance ratchet, return ratchet, fixed tooth, non-return hook, non-return hook shift block, range-extending pad, range-extending pad shift block and cutting depth adjustment hole in the slider mechanism are fixed on the slider.

4. A rubber tapping machine for cutting the bark of a rubber tree according to claim 2, characterized in that: The tool holder clamp is composed of a linkage arm, a tool holder frame, a tool head fixture and a torsion spring; the linkage arm and the tool holder frame are connected through a torsion spring and an axle pin.

Images