CN218337360U - Automatic rubber tapping machine - Google Patents

Abstract

The utility model discloses an automatic tapping machine, which comprises a cutter component for cutting a rubber tree, a first driving mechanism for driving the cutter component to move around the rubber tree and a second driving mechanism (4) for driving the cutter component to lift; the method is characterized in that: the cutter component (1) comprises a cutter rest (11) and a cutter head (14) arranged on the cutter rest (11); the first driving mechanism (3) comprises a spiral track (31), a rack (32), a gear (33) and a third driving piece (35), and the second driving mechanism (4) comprises two first bases (41 a), a first screw rod (42 a), a first line changing moving block (44 a) and a fourth driving piece (45). Compared with the prior art, the utility model discloses an automatic tapping machine is with low costs, loading and unloading and maintenance are simple.

Description

Automatic rubber tapping machine

Technical Field

The utility model relates to a natural rubber industry agricultural machine rubber tapping technical field specifically indicates an automatic rubber tapping machine.

Background

The economic benefit of the rubber trees comes from the yield of the latex obtained by rubber tapping, while natural rubber is an important equipment material in various countries, and how to simply and efficiently extract the latex from the rubber trees is a problem which is urgently needed to be solved by the rubber industry. Rubber trees can be cut continuously for thirty to forty years from planting to meeting the cutting requirements, while natural rubber is obtained by cutting the mammary ducts in the rubber tree skin.

The latex is obtained by the method of cutting the rubber trees and discharging the rubber by using a sharp tool at the earliest, and the rubber yield is greatly improved only by the continuous rubber tapping method of the rubber trees invented by Huangdelier, the owner of the Singapore vegetable garden, in 1897. The rubber tapping method is continuously developed in the following 120 years, the common rubber tapping methods of a full-female cutter, a full-male cutter and the like are adopted at present, the rubber tapping technical requirement is high, a skilled rubber worker needs one month or more for cultivation, and a large amount of technical training cost is required.

The rubber trees meeting the cutting requirements can be cut in 280 days in one year, each tree needs to be cut 110 times, almost 2 to 3 days are cut once, the labor investment of a rubber tapping worker and the like accounts for more than 70 percent of the total investment of the whole production latex, in the rubber tapping period, because the rubber discharging latex pipe in the rubber tree is at the lowest air temperature every day, the swelling pressure in the rubber tree is high, the flowing latex liquid is solidified due to low temperature and the rubber discharging time is prolonged, the tree cutting needs to be started when the air temperature is low at 2 o' clock every morning, the tree cutting is carried out every 3 hours, 4 to 5 hours are consumed from the beginning of the first tree to the end of the cutting, the manual rubber cutting can only cut about 500 trees every day due to physical consumption, frequent stoop and the like, the rubber tapping cost is high, the field operation environment is very harsh at night, and frequent various body discomfort can be caused due to frequent disturbance of various mosquitoes and long-time stoop operation. The rubber tapping process can also cause great influence due to the interference of rainwater, certain natural rubber producing areas suffer from the duration of wind and rain in the seasons of up to 6 months every year, so that the trip of rubber tapping personnel is inconvenient, the rubber tapping frequency is reduced, artificial rubber tapping is performed for 65-80 times per plant per year, the number of times of manual rubber tapping is lower than that of normal standard 110 times, and the number of times of cutter losing is large, so that the yield is too low.

However, a skilled glue worker needs one month or more, a large amount of technical training cost is invested, and under the background that the current labor is increasingly tense, the labor cost is greatly increased, young people do not want to cut glue and the market quotation is not good, a production enterprise can not lay out glue, the embarrassment situation that glue cannot be cut and glue is not cut is caused, and great loss is caused to production.

In order to improve the tapping efficiency, reduce the tapping technology and reduce the labor of the tapping tool, various tapping tools such as a traditional push-type tapping tool, an electric tapping tool, an automatic walking robot tapping machine and the like are also provided on the tapping tool.

The electric tapping knife can only reduce the tapping technical requirements and cannot replace the manual labor, and the daily early morning work and long-time manual operation cannot be avoided.

Although the automatic walking robot rubber tapping replaces the manual work, due to the terrain limitation of the rubber forest and the different appearance states of each tree, the cutting path needs to be repositioned and searched before the rubber tapping of each tree, so that the operation is slow, the efficiency is low, and the popularization cannot be realized.

The natural rubber belongs to agricultural properties before primary processing in a rubber tapping stage, the rubber after tapping enters the industrial field after being fed into a factory for processing, the special properties determine the use requirements and the facing groups of rubber tapping machines, and the future of the rubber tapping machines is determined by the requirements of durability and convenient maintenance on the basis of low cost.

Although various problems of manual rubber tapping have been solved to bionical rubber tapping machine of intelligence of a tree on the market at present, owing to adopt bionical artifical blade rubber tapping, the operation needs great drive power, and the rubber tapping mode is more single, complete machine mechanical cooperation is more complicated, need the complete machine to demolish during the maintenance, the higher maintenance of machine cost is troublesome, it is irregular to meet the tree outward appearance, the crown arch, unable normal use such as sunken, it is higher to hang the machine requirement of rubber tree, the actual on-hook volume of a mu rubber forest land is less etc. cause the cost too high and lead to promoting difficult phenomenon.

The currently disclosed Chinese patent application CN104429813A, chinese patent application CN106034980A and Chinese patent application CN106718653A all adopt bionic artificial blades for rubber tapping, the rubber tapping mode is single, as the bionic blades need larger operation driving force to cut off barks when tapping rubber, the driving requirement on the whole machine is higher, the cutters are easy to clamp when the burrs and the recesses are encountered, the rubber tapping machine is easy to damage when the defects are serious, the output is influenced by skip cutting when the defects are caused by light persons, rubber trees with good quality are often required to be selected to install the machine, and the quantity of machines which can be installed by one rubber forest is less in practice.

The Chinese patent application CN111972250A adopts a vertical parallel arrangement of double spiral tracks, a motor of a vertical tool rest assembly connected in the middle drives a screw rod to drive an upper driving gear and a lower driving gear to run along the upper spiral track and the lower spiral track, and drives the tool rest assembly to complete transverse tapping and vertical line changing.

Although the chinese patent application CN109924100A adopts the electric rotary cutting disc blade, the diameter of the disc surface of the rotary blade is large, and the situation that the cutting cannot be achieved due to the fact that the rotary blade cannot touch the concave part is encountered.

Although the rubber tree is not damaged by fixing the machine by adopting the binding belt, the stability is poor, the firmness and the service life of the whole machine are determined by the quality of the binding belt, and the cost is invisibly increased. In addition, the rubber tapping machine is large in integration due to the fact that complex mechanical gear matching is needed among all parts, and the parts are required to be dismounted and maintained after being in a problem and cannot be replaced on site, so that the operation and maintenance cost is high, and the rubber tapping machine cannot be popularized and used in a large area all the time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, provides a with low costs, loading and unloading and maintain simple automatic tapping machine.

The utility model aims to solve the second technical problem that an automatic tapping machine is provided to cut and say stably and can avoid the card sword.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: an automatic tapping machine comprises a cutter assembly for cutting a rubber tree, a first driving mechanism for driving the cutter assembly to move around the rubber tree and a second driving mechanism for driving the cutter assembly to lift; the method is characterized in that:

the cutter component comprises a cutter rest and a cutter head arranged on the cutter rest;

the first driving mechanism comprises

The spiral track is spirally arranged around the periphery of the rubber tree;

a rack disposed on the spiral track in an extending direction of the spiral track;

the gear can be rotatably arranged on the tool rest and is meshed with the rack; and

the power output end of the third driving piece is connected with the gear and used for driving the gear to rotate around the axis of the third driving piece; the second driving mechanism comprises

The two first bases are arranged at intervals along the axial direction of the rubber tree and are used for being fixed on the rubber tree;

the first screw rod extends along the axial direction of the rubber tree, and two ends of the first screw rod can be respectively and rotatably connected to the two first bases;

the first line changing moving block is provided with a first screw hole in threaded connection with the first screw rod, and one end of the spiral track is arranged on the first line changing moving block; and

and the fourth driving part is arranged on one of the first bases, and the power output end of the fourth driving part is connected with the first screw rod and used for driving the first screw rod to rotate around the axis of the fourth driving part.

In order to avoid the spiral track arranged on the line-changing moving block from shaking front and back and left and right during up and down translation, the second driving mechanism also comprises

The two second bases are arranged at intervals along the axial direction of the rubber tree and are used for being fixed on the rubber tree;

the second screw rods extend along the axial direction of the rubber tree, and two ends of the second screw rods can be respectively and rotatably connected to the two second bases;

the second line changing moving block is provided with a second screw hole in threaded connection with a second screw rod, and the other end of the spiral track is installed on the second line changing moving block; and

and two ends of the flexible shaft are respectively connected to the bottom ends of the first screw rod and the second screw rod.

In order to ensure the stability of the tool rest on the spiral track, the rack is arranged at the top side edge of the spiral track along the extension direction of the spiral track, the first driving mechanism further comprises at least two pulleys which are arranged at intervals along the extension direction of the spiral track, and each pulley is rotatably arranged on the tool rest and is in rolling contact with the bottom side edge of the spiral track.

In order to ensure that the cutter head can always support the bark to realize the planing and cutting, the cutter frame is provided with a sliding groove, and the cutter component also comprises

The sliding arm is at least partially inserted into the sliding groove and can slide along the length direction of the sliding groove, and the tool bit is arranged on the sliding arm; and

the first elastic piece is arranged between the sliding arm and the tool rest, so that the sliding arm always has the tendency of moving close to the rubber tree.

In order to further solve the second technical problem, the cutting tool assembly further comprises

The rotating seat can be rotatably arranged at one end of the sliding arm close to the rubber tree, and the cutter head is arranged at one side of the rotating seat close to the rubber tree;

the guide part and the knife depth limiting guide plate are positioned on one side, close to the rubber tree, of the rotating seat, the head of the knife head extends out relative to the knife depth limiting guide plate, and the guide part and the knife depth limiting guide plate are positioned on the front side and the rear side of the knife head respectively along the advancing direction of the knife assembly; and

the second elastic part is arranged between the rotating seat and the sliding arm, so that the guide part positioned on the rotating seat always has the tendency of abutting against the rubber tree.

In order to facilitate the cutting head to cut bark, the guide piece and the cutting head are arranged at intervals, so that a planing port is formed between the guide piece and the cutting head.

In order to reduce the friction between the guide and the surface of the rubber tree, the guide is a rotating wheel which is rotatably mounted on the rotating seat and is used for rolling contact with the surface of the rubber tree.

In order to ensure that the knife depth limiting guide plate plays a role of a chip removal baffle plate, the knife depth limiting guide plate is close to the knife head.

In order to avoid the cutter head from planing and cutting the rubber tree in the process of cutting rubber (such as changing rows), the rubber tree harvester further comprises a limiting assembly for limiting the sliding arm, so that the sliding arm has at least two states:

under the limiting action of the limiting assembly, the sliding arm is retracted into the sliding groove under the action of the elastic force of the first elastic piece in a first state;

in the second state, the limiting component releases the limiting effect on the sliding arm, and the sliding arm extends out of the sliding groove under the elastic action of the first elastic piece.

In order to conveniently realize and remove the limiting function, the limiting component comprises

The reel can be rotatably arranged on the knife rest;

the first end of the pull rope is wound on the reel, and the second end of the pull rope is connected to the sliding arm; and

the power output end of the second driving piece is connected with the reel and is used for driving the reel to rotate around the axis of the second driving piece so that the pull rope is wound on the reel or unwound from the reel;

in a first state, the pull rope is wound on the reel and used for applying pulling force to the sliding arm to limit;

and in a second state, the pull rope is unreeled from the reel to release the limiting effect on the sliding arm.

Compared with the prior art, the utility model has the advantages of:

(1) The single-rail support and screw rod driving mode not only reduces the manufacturing cost, but also has simple manufacture, more stable operation, simplifies the whole design while keeping stability, reduces the cost and is convenient for installation and later maintenance work;

(2) Because the rubber trees are different in variety and growth state, part of the rubber trees grow into burrs or surface depressions due to skin burst, so that the cutter head needs a larger driving force for rubber tapping to operate, and the cutter blade is damaged due to resistance under the condition that the rubber tapping surface is concave and convex;

according to the bark cutting device, the rotating seat provided with the cutter head is rotatably connected to the sliding arm, the sliding arm is slidably connected to the cutter frame and matched with the guide piece, the cutter depth limiting guide plate, the first elastic piece and the second elastic piece, on one hand, the sliding arm moves close to a rubber tree under the elastic action of the first elastic piece to force the guide piece on the rotating seat to be attached to the surface of a bark under the elastic action of the second elastic piece, and the rotating seat forces the cutter head to abut into the bark under the continuous pressure of the sliding arm until the cutter depth limiting guide plate abuts against the bark, so that the depth of a cutting channel is always kept consistent; on the other hand, in the rubber tapping action process, the guide piece moves on the surface of the bark, when the guide piece meets a bulge or a depression, the guide piece fluctuates and drives the cutter head to move along with the second elastic piece in a balanced mode, the cutter head and the surface of the trunk are always kept at a constant angle to conduct rubber tapping action, and therefore the cutting channel of the automatic rubber tapping machine is stable and can avoid cutter clamping.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of an automatic tapping machine of the present invention;

FIG. 2 is a schematic perspective view of FIG. 1 with the spiral track and the second drive mechanism omitted and in another direction;

fig. 3 is an exploded perspective view of fig. 2.

Fig. 4 is a schematic perspective view of the cutter assembly and the limiting assembly in the other direction shown in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, it is a preferred embodiment of the automatic tapping machine of the present invention. This automatic rubber tapping machine is including cutter unit 1, spacing subassembly 2, first actuating mechanism 3 and second actuating mechanism 4, and cutter unit 1 is used for cutting the rubber tree, and first actuating mechanism 3 is used for driving cutter unit 1 and is the heliciform around the rubber tree and rotates, and second actuating mechanism 4 is used for driving cutter unit 1 and goes up and down. The whole machine adopts a modularized combination mode to enable all parts to be quickly disassembled, and parts with problems can be quickly replaced to reduce the time for disassembling and maintaining the machine.

The cutter assembly 1 comprises a cutter frame 11, a sliding arm 12, a rotating seat 13, a cutter head 14, a guide member 15, a cutter depth limiting guide plate 16, a first elastic member 17 and a second elastic member 18.

Specifically, the top of the tool holder 11 is provided with a sliding groove 111 extending substantially along the radial direction of the rubber tree, one end of the sliding groove 111 far away from the rubber tree is provided with a baffle 112, and the lower part of the tool holder 11 is provided with a through hole 113 extending substantially along the rotation direction of the tool assembly 1 in a penetrating manner;

at least part of the sliding arm 12 is inserted into the sliding groove 111 and can slide along the length direction of the sliding groove 111, and a first limit switch 114 corresponding to the sliding arm 12 is installed in the sliding groove 111;

the rotating seat 13 is rotatably mounted on the top surface of one end of the sliding arm 12 close to the rubber tree through a rotating shaft 131, the cutter head 14, the guide member 15 and the cutter depth limiting guide plate 16 are all positioned on one side of the rotating seat 13 close to the rubber tree, and along the advancing direction of the cutter assembly 1, the guide member 15 and the cutter depth limiting guide plate 16 are respectively positioned on the front side and the rear side of the cutter head 14;

the cutter head 14 is a strip-shaped blade, and the head part of the cutter head extends out relative to the cutter depth limiting guide plate 16;

the guide 15 is a runner rotatably mounted on the rotary base 13 for rolling contact with the surface of the rubber tree; the guide 15 is spaced apart from the cutter head 14 to form a bite 141 therebetween;

the cutter depth limiting guide plate 16 is arranged close to the cutter head 14, plays the roles of cutter depth limiting and chip removal baffle, is used for limiting the cutter point at the head of the cutter head 14 to extend out too long to damage the trunk part, can adjust the length of the extension of the head of the cutter head 14 according to the thickness of the bark, and ensures that the broken bark cut by the cutter depth limiting guide plate 16 is separated during tapping of the cutter head 14 to remove chips smoothly; in this embodiment, the knife depth limiting guide plate 16 and the rotating seat 13 are an integral piece;

the first elastic element 17 is a compression spring, is accommodated in the sliding groove 111, and two ends of the first elastic element respectively abut against the sliding arm 12 and the baffle 112, so that the sliding arm 12 always tends to move close to the rubber tree;

the second elastic element 18 is a torsion spring, is sleeved on the rotating shaft 131, and two ends of the second elastic element respectively abut against the rotating seat 13 and the sliding arm 12, so that the guide element 15 on the rotating seat 13 always tends to abut against the rubber tree, and the angle between the tool bit 14 and the surface of the rubber tree is kept constant; when tapping, the second elastic part 18 acts on the torsion of the sliding arm 12 to keep the rotating seat 13 in a balanced state all the time, when the guide part 15 meets the tree surface at a convex or concave part while the cutter frame 11 moves, the cutter head 14 moves along with the convex and concave parts of the bark through the action of the lever balance principle, and a constant angle (generally vertical state) is kept all the time with the bark surface, so that the phenomenon that the cutter is clamped or can not be cut is avoided;

the stopper assembly 2 includes a pulley 21, a rope 22, and a second driving member 23, and is capable of stopping the slide arm 12.

Specifically, a reel 21 is rotatably mounted in a slide groove 111 of the tool rest 11, and the above-mentioned baffle plate 112 is located between the slide arm 12 and the reel 21 and is arranged close to the reel 21; in the embodiment, the reel 21 is a one-way reel, so that the reverse winding caused by excessive release is avoided;

the first end of the pull rope 22 is wound on the reel 21, and the second end is connected to the sliding arm 12;

the second driving member 23 is a motor, and a power output end thereof is connected to the reel 21 for driving the reel 21 to rotate around its axis, so that the rope 22 is wound on the reel 21 or unwound from the reel 21, and the sliding arm 12 has at least two states: in a first state, the pull rope 22 is wound on the reel 21 to limit the sliding arm 12 by applying a pulling force, so that the sliding arm 12 retracts into the sliding groove 111 against the elastic force of the first elastic element 17; in the second state, the pull rope 22 is unwound from the reel 21 to release the position-limiting effect on the sliding arm 12, so that the sliding arm 12 extends out of the sliding slot 111 under the elastic force of the first elastic element 17.

The first driving mechanism 3 includes a spiral track 31, a rack 32, a gear 33, a pulley 34 and a third driving member 35.

Specifically, the spiral track 31 is in a shape of a semi-circular arc in the upward spiral direction, the upward spiral angle is about 40 degrees with the horizontal line, the inner curved surface of the spiral track 31 is concentric with the bark periphery around the bark surface and is used for spirally surrounding the periphery of the rubber tree, the spiral track 31 is arranged in the through hole 113 of the tool holder 11 in a penetrating manner, the two ends of the outer curved surface of the spiral track 31 are provided with limit blocks 311 for blocking the tool holder 11, the side part of the tool holder 11 is provided with a second limit switch 115 corresponding to the limit blocks 311 for limiting the movement range of the tool holder 11 on the spiral track 31, and a user can temporarily detach and change the distance of the limit blocks 311 according to actual conditions, thereby facilitating the assembly and disassembly of the tool assembly 1 on the one hand and the adjustment of the movement range of the tool holder 11 on the spiral track 31 on the other hand;

the rack 32 is arranged at the top side edge of the spiral track 31 in the extending direction of the spiral track 31; in the present embodiment, the rack 32 and the spiral track 31 are an integral piece;

a gear 33 rotatably mounted on the top of the through hole 113 and engaged with the rack 32;

the number of the pulleys 34 is at least two, and the pulleys 34 are arranged at intervals along the extending direction of the spiral track 31, each pulley 34 can be rotatably arranged at the bottom of the through hole 113 and is in rolling contact with the side edge of the bottom of the spiral track 31, so that the tool rest 11 is stably sleeved on the spiral track 31, and the moving stability of the tool rest is ensured;

the third driving member 35 is a motor, and is mounted on the tool holder 11, and a power output end thereof is connected with the gear 33 for driving the gear 33 to rotate around its axis.

In this embodiment, spiral track 31 adopts 1 style of calligraphy material of cross section to make, about 4 millimeters in thickness, about 40 millimeters in width, length and crookedness can be established to three corresponding specification according to the rubber tree encloses the size, and the first-selected aluminium of section bar material is arranged, and it is high to make plasticity easily, and the monorail supports not only has reduced manufacturing cost, and simple manufacture makes the operation more steady, has simplified overall design when keeping steady and has reduced the cost, the maintenance work of the installation of being convenient for and later stage.

The second driving mechanism 4 includes a first base 41a, a second base 41b, a first lead screw 42a, a second lead screw 42b, a flexible shaft 43, a first shift moving block 44a, a second shift moving block 44b and a fourth driving member 45.

Specifically, the number of the first bases 41a is two, and the two bases are arranged at intervals in the axial direction of the rubber tree and connected by a link, and the number of the second bases 41b is two, and the two bases are arranged at intervals in the axial direction of the rubber tree and connected by a link; the upper part and the lower part of each connecting rod are provided with fixing pieces 411 which are used for being fixed on a rubber tree, the fixing pieces 411 are provided with mosquito nail arrays, the mosquito nails are made of thin stainless steel nail materials, the fixing area between the fixing pieces and the tree is increased by adopting an array layout mode, the firmness of the fixing pieces is increased, and the service life of the fixing pieces is prolonged;

the first lead screw 42a extends along the axial direction of the rubber tree, two ends of the first lead screw are respectively and rotatably connected to the two first bases 41a, the second lead screw 42b extends along the axial direction of the rubber tree, and two ends of the second lead screw are respectively and rotatably connected to the two second bases 41 b;

two ends of the flexible shaft 43 are respectively connected to the bottom ends of the first lead screw 42a and the second lead screw 42b, so that when the first lead screw 42a is rotated, the flexible shaft 43 can drive the second lead screw 42b to rotate in the opposite direction;

a first screw hole 441a which is in threaded connection with the first lead screw 42a is formed in the first traveling block 44a, a second screw hole 441b which is in threaded connection with the second lead screw 42b is formed in the second traveling block 44b, and two ends of the spiral track 31 are respectively installed on the first traveling block 44a and the second traveling block 44 b; in addition, a third limit switch (not shown in the figure) corresponding to the first traveling changing moving block 44a is arranged on the two first bases 41a and is used for limiting the moving range of the first traveling changing moving block 44a on the first lead screw 42 a;

the fourth driving part 45 is a motor, is installed on one of the first bases 41a, and has a power output end connected with the first lead screw 42a for driving the first lead screw 42a to rotate around the axis thereof;

in this embodiment, the mutual acting force of two movable blocks of trading can avoid installing spiral track 31 on the movable block of trading taking place to rock all around when the translation from top to bottom, force spiral track 31 inner bend face to laminate trunk surface and enclose parallelly with the tree, encircle the trunk and reciprocate the action of trading a line (every time trade line translation about 1.2 millimeters, move about 110 times on average every year, migration distance about 14 centimetres, including spiral track 31 has certain toughness and plasticity, can force spiral track 31 inner bend face to press close to the trees surface and form certain elasticity all the time, make tool bit 14 of operation on spiral track 31 conflict all the time and easily move the operation of cutting glue on the bark surface when slide arm 12 stretches out.

The automatic tapping machine includes a controller electrically connected to the upper first limit switch 114, the second limit switch 115, the third limit switch 431, the second driving member 23, the third driving member 35, and the fourth driving member 45.

The control method of the automatic tapping machine comprises the following steps:

(1) During installation, firstly selecting a spiral track 31 with a proper specification according to the size of the circumference of the rubber tree, manually and properly adjusting the curvature according to actual conditions to enable the spiral track 31 to be more attached to the surface of a bark, wherein one end of the spiral track 31 is fixedly connected with a first line changing moving block 44a, the other end of the spiral track passes through a through hole 113 of a tool rest 11 and is fixedly connected with a second line changing moving block 44b, a rack 32 at the side edge of the top of the spiral track 31 is meshed with a gear 33, the side edge of the bottom of the spiral track 31 is in rolling contact with two pulleys 34, the gear 33 can be driven to rotate through a third driving piece 35, the tool rest 11 can smoothly run on the spiral track 31, then limiting blocks 311 are installed at two ends of the spiral track 31 according to a required distance, finally, a fixing piece 411 is fixed at a proper position of the rubber tree, and the spiral track 31 on the line changing moving block can be driven to smoothly move up and down along the axial direction of the rubber tree when a screw rod rotates;

(2) When tapping, the controller starts the fourth driving element 45 to cooperate with the flexible shaft 43 to drive the two lead screws to rotate, the fourth driving element 45 stops operating to complete the line changing movement after the two line changing moving blocks and the spiral track 31 are driven to move downwards by about 1.2 mm through thread cooperation, at this time, the controller sends a signal to enable the third driving element 35 to operate to drive the tool rest 11 to move along the spiral track 31 and close to the first lead screw 42a until the limiting block 311 is touched, the corresponding second limiting switch 115 acquires the signal and transmits the signal to the controller, the third driving element 35 stops operating, the second driving element 23 is started to operate, the pull rope 22 is unreeled from the reel 21 to release the sliding arm 12, so that the sliding arm 12 extends out of the chute 111 under the elastic force of the first elastic element 17, the guide element 15 on the rotating seat 13 is forced to be attached to the bark surface under the elastic force of the second elastic element 18, and the rotating seat 13 is forced to enable the tool bit 14 to be abutted to the bark under the continuous pressure of the sliding arm 12, the second driving part 23 stops rotating after reaching the preset revolution, at the same time, the controller sends a signal to reverse the third driving part 35, so as to drive the knife rest 11 to move along the spiral track 31 into the second lead screw 42b, and simultaneously drive the knife head 14 to perform a rubber tapping action, at the same time, the guide part 15 rolls on the bark surface, when encountering a protrusion or a depression, the guide part fluctuates and drives the knife head 14 to follow through the balance of the second elastic part 18, so that the knife head 14 performs the rubber tapping action perpendicular to the trunk surface all the time, when the knife rest 11 runs to the limiting block 21 at the other end of the spiral track 31, the second limiting switch 115 acquires the signal and transmits the signal to the controller, the third driving part 35 stops running, the second driving part 23 is started to run, the pull rope 22 is wound on the reel 21 to apply a pulling force to the sliding arm 12 for limiting, so that the sliding arm 12 retracts into the sliding groove 11 under the elastic action of the first elastic part 17, meanwhile, the rotating seat 13 enables the cutter head 14 to be separated from the inside of the bark under the recovery of the sliding arm 12, when the sliding arm 12 touches the first limit switch 114 inside the sliding groove 111, the second driving part 23 stops running, and at the moment, the cutter head 14 is recovered to finish a rubber tapping operation.

Claims (10)

1. An automatic tapping machine comprises a cutter assembly (1) for cutting a rubber tree, a first driving mechanism (3) for driving the cutter assembly (1) to move around the rubber tree and a second driving mechanism (4) for driving the cutter assembly (1) to lift; the method is characterized in that:

the cutter assembly (1) comprises a cutter rest (11) and a cutter head (14) arranged on the cutter rest (11);

the first driving mechanism (3) comprises

The spiral track (31) is spirally arranged around the periphery of the rubber tree;

a rack (32) disposed on the spiral track (31) in an extending direction of the spiral track (31);

a gear (33) which is rotatably arranged on the tool rest (11) and is meshed with the rack (32); and

the power output end of the third driving piece (35) is connected with the gear (33) and is used for driving the gear (33) to rotate around the axis of the third driving piece;

the second driving mechanism (4) comprises

Two first bases (41 a) arranged at intervals along the axial direction of the rubber tree and used for being fixed on the rubber tree;

a first screw rod (42 a) extending along the axial direction of the rubber tree, and two ends of the first screw rod are respectively connected to the two first bases (41 a) in a rotatable manner;

a first traveling block (44 a) provided with a first screw hole (441 a) in threaded connection with the first screw rod (42 a), and one end of the spiral track (31) is mounted on the first traveling block (44 a); and

and the fourth driving piece (45) is arranged on one of the first bases (41 a), and the power output end of the fourth driving piece is connected with the first screw rod (42 a) and used for driving the first screw rod (42 a) to rotate around the axis of the fourth driving piece.

2. The automatic tapping machine of claim 1, wherein: the second driving mechanism (4) also comprises

Two second bases (41 b) arranged at intervals along the axial direction of the rubber tree and used for being fixed on the rubber tree;

the second screw rods (42 b) extend along the axial direction of the rubber tree, and two ends of the second screw rods can be respectively and rotatably connected to the two second bases (41 b);

a second traveling changing moving block (44 b) provided with a second screw hole (441 b) in threaded connection with the second screw rod (42 b), and the other end of the spiral track (31) is mounted on the second traveling changing moving block (44 b); and

and two ends of the flexible shaft (43) are respectively connected to the bottom ends of the first screw rod (42 a) and the second screw rod (42 b).

3. The automatic tapping machine of claim 1, wherein: the rack (32) is arranged at the top side edge of the spiral track (31) along the extending direction of the spiral track (31), the first driving mechanism (3) further comprises pulleys (34), the number of the pulleys (34) is at least two, the pulleys are arranged at intervals along the extending direction of the spiral track (31), and each pulley (34) is rotatably arranged on the tool rest (11) and is in rolling contact with the bottom side edge of the spiral track (31).

4. The automatic tapping machine as claimed in any one of claims 1 to 3, wherein: the tool rest (11) is provided with a sliding groove (111), and the tool assembly (1) further comprises

The sliding arm (12) is at least partially inserted into the sliding groove (111) and can slide along the length direction of the sliding groove (111), and the cutter head (14) is arranged on the sliding arm (12); and

and the first elastic piece (17) is arranged between the sliding arm (12) and the tool rest (11) and can enable the sliding arm (12) to always have the tendency of moving close to the rubber tree.

5. The automatic tapping machine of claim 4, wherein: the cutter assembly (1) further comprises a rotating seat (13) which can be rotatably arranged at one end, close to the rubber tree, of the sliding arm (12), and the cutter head (14) is arranged on one side, close to the rubber tree, of the rotating seat (13);

the guide piece (15) and the knife depth limiting guide plate (16) are positioned on one side, close to the rubber tree, of the rotating seat (13), the head of the knife head (14) extends out relative to the knife depth limiting guide plate (16), and the guide piece (15) and the knife depth limiting guide plate (16) are positioned on the front side and the rear side of the knife head (14) respectively along the advancing direction of the knife assembly (1); and

and the second elastic piece (18) is arranged between the rotating seat (13) and the sliding arm (12) and can enable the guide piece (15) positioned on the rotating seat (13) to always have the tendency of abutting against the rubber tree.

6. The automatic tapping machine of claim 5, wherein: the guide piece (15) and the cutter head (14) are arranged at intervals, so that a plane opening (141) is formed between the guide piece and the cutter head.

7. The automatic tapping machine of claim 5, wherein: the guide member (15) is a runner which is rotatably mounted on the rotary base (13) for rolling contact with the surface of the rubber tree.

8. The automatic tapping machine of claim 5, wherein: the knife depth limiting guide plate (16) is arranged close to the knife head (14).

9. The automatic tapping machine of claim 4, wherein: the device also comprises a limiting component (2) used for limiting the sliding arm (12), so that the sliding arm (12) has at least two states:

under the limiting action of the limiting component (2) in a first state, the sliding arm (12) is retracted in the sliding groove (111) against the elastic force of the first elastic piece (17);

in a second state, the limiting component (2) releases the limiting effect on the sliding arm (12), and the sliding arm (12) extends out of the sliding groove (111) under the elastic force effect of the first elastic piece (17).

10. The automatic tapping machine of claim 9, wherein: the limiting component (2) comprises a reel (21) which is rotatably arranged on the knife rest (11);

a pull rope (22) with a first end wound on the reel (21) and a second end connected with the sliding arm (12); and

the power output end of the second driving piece (23) is connected with the reel (21) and used for driving the reel (21) to rotate around the axis of the second driving piece so as to enable the pull rope (22) to be wound on the reel (21) or unwound from the reel (21);

in a first state, the pull rope (22) is wound on the reel (21) and used for applying pulling force to the sliding arm (12) for limiting;

in the second state, the pulling rope (22) is unreeled from the reel (21) to release the limiting effect on the sliding arm (12).

Images