阅读说明：本技术 一种具有选别功能的茶叶收割机头 (Tea harvesting machine head with sorting function ) 是由 周国鹏 徐碧玉 王朝南 胡侃 于 2020-12-17 设计创作，主要内容包括：本发明提供了一种具有选别功能的茶叶收割机头,属于农业设备技术领域。包括具有开口的收集罩,收集罩内具有一收集腔,收集罩的开口处具有剪切机构,收集腔内具有若干选分槽,收集罩的开口处具有位于剪切机构后侧的抛料机构；剪切机构包括固定刀片和活动刀片,活动刀片位于固定刀片上方,活动刀片上具有一导料板；抛料机构包括转轴、两个分别固定在转轴两端的从动辊,从动辊为中空结构,转轴与从动辊之间形成一导向环槽,转轴上固定设置有位于导向环槽内的安装条,安装条的两端分别固定设置有一导杆,两根导杆之间连接有一滑块,滑块滑动连接在导杆上,导杆上套设有连接滑块和安装条之间的压紧弹簧。本发明具有能够节约生产工序等优点。(The invention provides a tea leaf harvesting machine head with a sorting function, and belongs to the technical field of agricultural equipment. The material collecting device comprises a collecting cover with an opening, wherein a collecting cavity is arranged in the collecting cover, a shearing mechanism is arranged at the opening of the collecting cover, a plurality of sorting grooves are formed in the collecting cavity, and a material throwing mechanism located on the rear side of the shearing mechanism is arranged at the opening of the collecting cover; the shearing mechanism comprises a fixed blade and a movable blade, the movable blade is positioned above the fixed blade, and a material guide plate is arranged on the movable blade; the material throwing mechanism comprises a rotating shaft and two driven rollers which are fixed at two ends of the rotating shaft respectively, the driven rollers are of hollow structures, a guide ring groove is formed between the rotating shaft and the driven rollers, a mounting bar located in the guide ring groove is fixedly arranged on the rotating shaft, two ends of the mounting bar are respectively and fixedly provided with a guide rod, a sliding block is connected between the two guide rods, the sliding block is connected onto the guide rods in a sliding mode, and a compression spring connected between the sliding block and the mounting bar is sleeved on the guide rods. The invention has the advantages of saving production procedures and the like.)

1. A tea leaf harvesting machine head with a sorting function is characterized by comprising a collecting cover (1) with an opening, wherein a collecting cavity (11) is formed in the collecting cover (1), a shearing mechanism is arranged at the opening of the collecting cover (1), a plurality of sorting grooves (11) are formed in the collecting cavity (11) close to the rear side of the collecting cover (1), and a material throwing mechanism located on the rear side of the shearing mechanism is arranged at the opening of the collecting cover (1);

the shearing mechanism comprises a fixed blade (21) and a movable blade (22), the movable blade (22) is positioned above the fixed blade (21), and a material guide plate (41) is arranged on the movable blade (22); the distances between the sorting grooves (11) and the tail ends of the material guide plates (41) are different;

the material throwing mechanism comprises a rotating shaft (42) and two driven rollers (43) which are respectively fixed at two ends of the rotating shaft (42), the driven rollers (43) are of a hollow structure, a guide ring groove (44) is formed between the rotating shaft (42) and the driven rollers (43), a mounting bar (45) positioned in the guide ring groove (44) is fixedly arranged on the rotating shaft (42), two ends of the mounting bar (45) are respectively and fixedly provided with a guide rod (46), a sliding block (47) is connected between the two guide rods (46), the sliding block (47) is slidably connected onto the guide rods (46), and a compression spring (48) connected between the sliding block (47) and the mounting bar (45) is sleeved on each guide rod (46);

the inner wall of the driven roller (43) is provided with an installation groove penetrating through the inner wall of the driven roller (43), the middle part of the installation groove is provided with an installation hole (51), a reed (52) is arranged between the two installation grooves, two ends of the reed (52) are respectively arranged in the two installation grooves, the middle part of the reed (52) is provided with a bending part (53), two ends of the reed (52) are respectively provided with a driving part (54) and a limiting part (55), a reset spring (56) in a compressed state is inserted into the installation hole (51), and the reset spring (56) is abutted against the bending part of the reed (52); a shifting sheet (6) is connected between the two sliding blocks (47), and the shifting sheet (6) can shift tea leaves positioned on the material guide plate (41) into the sorting grooves (11);

when the return spring (56) is in a natural state, both ends of the reed (52) extend out of the mounting groove.

2. The tea leaf harvesting head with the sorting function as claimed in claim 1, wherein the shearing mechanism further comprises a rotating rod (23) rotatably connected to the collecting hood (1) and a driving motor (24) fixed at one end of the rotating rod (23), two ends of the rotating rod (23) are respectively provided with a guide groove (25), the guide groove (25) comprises a plurality of first straight sections (251) and a plurality of second straight sections (252) corresponding to the first straight sections (251), a distance along the axial direction of the rotating rod (23) is formed between the first straight sections (251) and the second straight sections (252), the first straight sections (251) and the second straight sections (252) are arranged at intervals, and adjacent first straight sections (251) and adjacent second straight sections (252) are connected through inclined sections (253); the movable blade (22) is provided with two convex blocks (26), and the two convex blocks (26) are respectively positioned in the two guide grooves (25); a sliding groove (27) is formed above the fixed blade (21), a convex strip (28) matched with the sliding groove (27) is arranged on the movable blade (22), and the convex strip (28) is transversely connected in the sliding groove (27) in a sliding mode.

3. The tea leaf harvesting head with the sorting function according to claim 2, wherein a first belt wheel (31) is fixedly arranged at each of two ends of the rotating rod (23), a second belt wheel (32) matched with the first belt wheel (31) is fixedly arranged on the rotating shaft (42), the first belt wheel (31) is connected with the second belt wheel (32) matched with the first belt wheel through a belt (33), and the diameter of the first belt wheel (31) is smaller than that of the second belt wheel (32).

4. The tea leaf harvesting head with the sorting function according to claim 1, 2 or 3, wherein the poking piece (6) is made of elastic rubber material.

5. The tea leaf harvesting head with sorting function according to claim 1, 2 or 3, wherein one end of the sorting groove (11) is higher than the other end, the lower end of the sorting groove (11) is connected with a discharge pipe, and a collection bag is sleeved on the discharge pipe.

6. The tea harvesting head with the sorting function as claimed in claim 1, 2 or 3, wherein a steel ball (57) is arranged between the return spring (56) and the bending part (53) of the spring plate (52), a through hole passing through the center is formed in the steel ball (57), and a connecting ring passing through the through hole is connected between the spring plate (52) and the steel ball.

Technical Field

The invention belongs to the technical field of agricultural equipment, and relates to a tea leaf harvesting machine head with a sorting function.

Background

The tea leaves are leaves or buds of tea trees, can be directly soaked and drunk by boiled water, and are deeply popular with the masses because of the characteristics of nature, health, convenience for drinking and the like.

Sorting is particularly important in the tea processing process, impurities in the tea can be removed through sorting, so that the tea in the same processing batch is basically the same in the tea production, the quality of the tea can be obviously improved, the control of frying time and temperature in the tea processing process is facilitated, and the quality of the tea is improved. Tea sorting and processing and sorting are also processes that must be performed after tea is picked.

The existing tea picking machine can only carry out undifferentiated reciprocating cutting on the young tea shoots, so that the problems of large specification difference, uneven defective times, different old and tender properties and the like of the fresh tea leaves picked by the machine are caused, the subsequent processing processes are different, the product quality is unstable, and the economic benefit cannot be fully exerted. And current machine equipment that sieves old leaf of old stalk and bud leaf all is reaping the completion back at tealeaves and go on alone again, no matter be equipment selection by winnowing or vibration select, all need carry out many times dispersion, tiling and storage dress to tealeaves, fresh tealeaves is carrying out like above operation in-process and is causing harmful effects such as impaired easily, dehydration, rupture, if select separately it when picking, then can promote the quality and the integrality of tealeaves greatly, also can reduce course of working and manufacturing cost.

Disclosure of Invention

The invention aims to provide a tea leaf harvesting machine head with a sorting function aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to sort tea leaves during harvesting, so that the damage of the tea leaves is reduced, and the tea leaf processing efficiency is improved.

The purpose of the invention can be realized by the following technical scheme: a tea leaf harvesting machine head with a sorting function is characterized by comprising a collecting cover with an opening, wherein a collecting cavity is arranged in the collecting cover, a shearing mechanism is arranged at the opening of the collecting cover, a plurality of sorting grooves are formed in the collecting cavity close to the rear side of the collecting cover, and a material throwing mechanism located on the rear side of the shearing mechanism is arranged at the opening of the collecting cover;

the shearing mechanism comprises a fixed blade and a movable blade, the movable blade is positioned above the fixed blade, and a material guide plate is arranged on the movable blade; the distances between the sorting grooves and the tail ends of the material guide plates are different;

the material throwing mechanism comprises a rotating shaft and two driven rollers which are fixed at two ends of the rotating shaft respectively, the driven rollers are of hollow structures, a guide ring groove is formed between the rotating shaft and the driven rollers, a mounting bar positioned in the guide ring groove is fixedly arranged on the rotating shaft, two ends of the mounting bar are respectively and fixedly provided with a guide rod, a sliding block is connected between the two guide rods and is connected to the guide rods in a sliding manner, and a compression spring for connecting the sliding block and the mounting bar is sleeved on the guide rods;

the inner wall of the driven roller is provided with an installation groove penetrating through the inner wall of the driven roller, the middle part of the installation groove is provided with an installation hole, a reed is arranged between the two installation grooves, two ends of the reed are respectively arranged in the two installation grooves, the middle part of the reed is provided with a bending part, two ends of the reed are respectively provided with a driving part and a limiting part, a reset spring in a compressed state is inserted in the installation hole, and the reset spring is abutted against the bending part of the reed; a shifting sheet is connected between the two sliding blocks and can shift tea leaves positioned on the material guide plate into each sorting groove;

when the reset spring is in a natural state, two ends of the reed extend out of the mounting groove.

In the process that the rotating shaft rotates relative to the driven roller, the sliding block contacts the limiting part of the reed firstly, and at the moment, the mounting block is not yet contacted with the driving part of the reed; when the slide block just contacts with the limiting part of the reed, the slide block cannot pass through due to the limiting effect of the limiting part, the slide block is pressed by the compression spring in the process of gradually approaching the installation block until the installation block abuts against the driving part of the reed, the installation block pushes the driving part of the reed to drive the reed to deform until the reed moves towards the installation groove and compresses the reset spring, so that the limiting part and the driving part of the reed are both positioned in the installation groove, at the moment, the compression spring resets to drive the originally standing slide block to slide at high speed, namely, the shifting piece waves tea leaves positioned on the guide plate to be thrown towards the rear of the collection cavity, in the process of throwing the tea leaves, different types of tea leaves are positioned in different sorting grooves due to different shapes and different densities, if the tea buds are thrown far due to small wind resistance after being thrown, the independent blades are thrown near due to large wind resistance, and so on.

The reed can be deformed to reed "immerse" the reason of mounting groove when drive division receives thrust effect is: when the driving part is under the action of thrust, the pushing force of the driving part basically acts on the reed along the straight direction of the reed, and when the limiting part is under the action of the thrust, the thrust can drive the reed to further move towards the outside of the mounting groove; and then this structure can be in the middle of the rotatory in-process of pivot intermittent type nature compress pressure spring, and then make the plectrum can be in the position of stock guide will be located the tealeaves on the stock guide and stir in the twinkling of an eye, and then make tealeaves thrown.

Because the tea leaves are selected and classified when being just harvested, the subsequent processes can be simplified, the extrusion and damage frequency of the tea leaves can be reduced, and the most important is that: when tealeaves was reaped, tealeaves just was in the tiling originally, natural dispersion state, directly selects separately it can increase substantially to select separately the precision, and traditional sorting facilities is carried out the vibration tiling to tealeaves, nevertheless piles up because of the storage of tealeaves and to make partial tealeaves interlock each other, rupture etc. certainly, and the degree of difficulty of selecting separately at this moment is great, selects separately the precision lower.

Furthermore, the shearing mechanism also comprises a rotating rod which is rotatably connected to the collecting cover and a driving motor which is fixed at one end of the rotating rod, two ends of the rotating rod are respectively provided with a guide groove, the guide grooves comprise a plurality of first straight sections and a plurality of second straight sections which correspond to the first straight sections, intervals along the axial direction of the rotating rod are formed between the first straight sections and the second straight sections, the first straight sections and the second straight sections are arranged alternately, and adjacent first straight sections and adjacent second straight sections are connected through inclined sections; the movable blade is provided with two convex blocks which are respectively positioned in the two guide grooves; the fixed blade is characterized in that a sliding groove is formed above the fixed blade, a convex strip matched with the sliding groove is arranged on the movable blade, and the convex strip is transversely connected in the sliding groove in a sliding manner.

Furthermore, two ends of the rotating rod are respectively and fixedly provided with a first belt wheel, a second belt wheel matched with the first belt wheel is fixedly arranged on the rotating shaft, the first belt wheel is connected with the second belt wheel matched with the first belt wheel through a belt, and the diameter of the first belt wheel is smaller than that of the second belt wheel.

The driving forces of the shearing mechanism and the material throwing mechanism are from the driving motor, so that the structure is simpler, the quantity of the tea leaves thrown is basically equal every time, and the sorting quality and precision are improved.

Furthermore, the plectrum is made for having elastic rubber material.

Furthermore, one end of the sorting groove is higher than the other end of the sorting groove, the lower end of the sorting groove is connected with a discharge pipe, and a collection bag is sleeved on the discharge pipe.

After the tea leaves enter the sorting groove, the fall at the two ends of the sorting groove can make the tea leaves move towards the discharge pipe and then enter the collection bag.

Furthermore, a steel ball is arranged between the return spring and the bending part of the reed, a through hole passing through the center is formed in the steel ball, and the through hole is connected with the reed through a connecting ring.

This scheme can be used to handheld tealeaves harvester, also can be used to the tealeaves harvester of self-propelled.

Drawings

Fig. 1 is a schematic structural diagram of the tea leaf harvesting machine head.

Fig. 2 is a schematic perspective view of the rotating rod and the rotating shaft.

FIG. 3 is a perspective view of a movable blade and a fixed blade.

FIG. 4 is a cross-sectional view of the follower roller at an initial stage of the slider compression.

FIG. 5 is a cross-sectional view of the follower roller as the slider is pressed until the mounting bar contacts the spring.

FIG. 6 is a sectional view of the driven roller when the spring is sunk into the mounting groove.

Fig. 7 is an enlarged view of a portion a in fig. 4.

Fig. 8 is an enlarged view of a portion B in fig. 5.

Fig. 9 is an enlarged view of a portion C in fig. 6.

Fig. 10 is a development view of the guide groove.

In the figure, 1, a collecting cover; 11. a collection chamber; 12. sorting the grooves; 21. fixing a blade; 22. a movable blade; 23. a rotating rod; 24. a drive motor; 25. a guide groove; 251. a first straight section; 252. a second straight section; 253. an inclined section; 26. a bump; 27. a chute; 28. a convex strip; 31. a first pulley; 32. a second pulley; 33. a belt; 41. a material guide plate; 42. a rotating shaft; 43. a driven roller; 44. a guide ring groove; 45. mounting a bar; 46. a guide bar; 47. a slider; 48. a compression spring; 51. mounting holes; 52. a reed; 53. a bending section; 54. a drive section; 55. a limiting part; 56. a return spring; 57. steel balls; 6. a shifting sheet.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 3, 4, 5, 6, 7, 8 and 9, the collecting cover comprises a collecting cover 1 with an opening, a collecting cavity 11 is arranged in the collecting cover 1, a shearing mechanism is arranged at the opening of the collecting cover 1, a plurality of sorting grooves 11 are arranged in the collecting cavity 11 close to the rear side of the collecting cover 1, and a throwing mechanism is arranged at the opening of the collecting cover 1 and behind the shearing mechanism;

the shearing mechanism comprises a fixed blade 21 and a movable blade 22, the movable blade 22 is positioned above the fixed blade 21, and a material guide plate 41 is arranged on the movable blade 22; the distances between the sorting grooves 11 and the tail ends of the material guide plates 41 are different;

the material throwing mechanism comprises a rotating shaft 42 and two driven rollers 43 which are respectively fixed at two ends of the rotating shaft 42, the driven rollers 43 are of a hollow structure, a guide ring groove 44 is formed between the rotating shaft 42 and the driven rollers 43, a mounting bar 45 positioned in the guide ring groove 44 is fixedly arranged on the rotating shaft 42, two ends of the mounting bar 45 are respectively and fixedly provided with a guide rod 46, a sliding block 47 is connected between the two guide rods 46, the sliding block 47 is connected on the guide rod 46 in a sliding manner, and a compression spring 48 connected between the sliding block 47 and the mounting bar 45 is sleeved on the guide rod 46;

the inner wall of the driven roller 43 is provided with an installation groove penetrating through the inner wall of the driven roller 43, the middle part of the installation groove is provided with an installation hole 51, a reed 52 is arranged between the two installation grooves, two ends of the reed 52 are respectively arranged in the two installation grooves, the middle part of the reed 52 is provided with a bending part 53, two ends of the reed 52 are respectively provided with a driving part 54 and a limiting part 55, a return spring 56 in a compressed state is inserted into the installation hole 51, and the return spring 56 is abutted against the bending part of the reed 52; a shifting piece 6 is connected between the two sliding blocks 47, and the shifting piece 6 can shift tea leaves on the material guide plate 41 into each sorting groove 11;

when the return spring 56 is in a natural state, both ends of the spring plate 52 protrude out of the mounting grooves.

In the process that the rotating shaft 42 rotates relative to the driven roller 43, the sliding block 47 contacts the limiting part 55 of the reed 52 firstly, and at the moment, the mounting block is not contacted with the driving part 54 of the reed 52; when the slide block 47 just contacts with the limiting part 55 of the reed 52, the slide block 47 cannot pass through due to the limiting effect of the limiting part 55, the slide block 47 presses the pressing spring 48 in the process of gradually approaching the installation block until the installation block abuts against the driving part 54 of the reed 52, the installation block pushes the driving part 54 of the reed 52 to drive the reed 52 to deform until the reed 52 moves towards the installation groove, and the return spring 56 is compressed, so that the limiting part 55 and the driving part 54 of the reed 52 are both positioned in the installation groove, at the moment, the pressing spring 48 returns to drive the originally standing slide block 47 to slide at a high speed, namely, tea leaves on the guide plate 41 are thrown towards the rear part of the collection cavity 11 by the fluctuation of the poking piece 6, in the process of throwing the tea leaves, the tea leaves are different in different moving distances due to different shapes and different densities, so that different types of tea leaves are positioned in different sorting grooves 11, if the tea buds are thrown far out due to small wind resistance after being thrown, the individual blades are thrown out closer because of the larger wind resistance, and so on.

The reason why the spring plate 52 can be deformed to the extent that the spring plate 52 "sinks" into the mounting groove when the driving part 54 is subjected to the thrust is that: when the driving part 54 is pushed, the pushing force acts on the spring plate 52 basically along the straight direction of the spring plate 52, and when the limiting part 55 is pushed, the pushing force drives the spring plate 52 to move further out of the mounting groove; furthermore, the structure can compress the pressing spring 48 intermittently during the rotation of the rotating shaft 42, so that the poking piece 6 can poke the tea leaves on the material guide plate 41 instantaneously at the position of the material guide plate 41, and the tea leaves are thrown out.

Because the tea leaves are selected and classified when being just harvested, the subsequent processes can be simplified, the extrusion and damage frequency of the tea leaves can be reduced, and the most important is that: when tealeaves was reaped, tealeaves just was in the tiling originally, natural dispersion state, directly selects separately it can increase substantially to select separately the precision, and traditional sorting facilities is carried out the vibration tiling to tealeaves, nevertheless piles up because of the storage of tealeaves and to make partial tealeaves interlock each other, rupture etc. certainly, and the degree of difficulty of selecting separately at this moment is great, selects separately the precision lower.

The two ends of the rotating rod 23 are respectively fixedly provided with a first belt wheel 31, the rotating shaft 42 is fixedly provided with a second belt wheel 32 matched with the first belt wheel 31, the first belt wheel 31 is connected with the second belt wheel 32 matched with the first belt wheel through a belt 33, and the diameter of the first belt wheel 31 is smaller than that of the second belt wheel 32. The driving forces of the shearing mechanism and the material throwing mechanism are from the driving motor 24, so that the structure is simpler, the quantity of the tea leaves thrown is basically equal every time, and the sorting quality and precision are improved.

The shifting piece 6 is made of elastic rubber material.

One end of the sorting groove 11 is higher than the other end, the lower end of the sorting groove 11 is connected with a discharge pipe, and a collection bag is sleeved on the discharge pipe. After the tea leaves enter the sorting groove 11, the fall at the two ends of the sorting groove 11 can make the tea leaves move towards the discharging pipe and then enter the collecting bag.

A steel ball 57 is arranged between the return spring 56 and the bending part 53 of the spring plate 52, a through hole passing through the center is formed in the steel ball 57, and the through hole is connected with the spring plate 52 through a connecting ring.

As shown in fig. 2 and 10, the shearing mechanism further comprises a rotating rod 23 rotatably connected to the collecting hood 1 and a driving motor 24 fixed at one end of the rotating rod 23, two ends of the rotating rod 23 are respectively provided with a guide groove 25, the guide groove 25 comprises a plurality of first straight sections 251 and a plurality of second straight sections 252 corresponding to the first straight sections 251, a distance along the axial direction of the rotating rod 23 is formed between the first straight sections 251 and the second straight sections 252, the first straight sections 251 and the second straight sections 252 are arranged at intervals, and adjacent first straight sections 251 and adjacent second straight sections 252 are connected through inclined sections 253; the movable blade 22 has two protrusions 26, and the two protrusions 26 are respectively located in the two guide grooves 25; a sliding slot 27 is arranged above the fixed blade 21, a protruding strip 28 matched with the sliding slot 27 is arranged on the movable blade 22, and the protruding strip 28 is transversely connected in the sliding slot 27 in a sliding manner.

This scheme can be used to handheld tealeaves harvester, also can be used to the tealeaves harvester of self-propelled.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.