Finger-clip seed taker, finger-clip seeding tray and finger-clip seeding device

Abstract

The present invention relates to the field of agricultural machinery technology, and is a finger-clamping seed remover, a finger-clamping sowing plate, and a finger-clamping sowing device. The finger-clamping seed remover includes a seed removing seat, a finger-clamping body, a tile cover, a rotating shaft, a first torsion spring, and a roller. The present invention has a reasonable and compact structure. Gaps are provided between the left side of the tile cover and the left side of the seed removing seat, as well as between the right side of the tile cover and the right side of the seed removing seat, which facilitates the installation and sealing between multiple seed removing seats. By setting an upper rotating groove and a lower rotating groove, it is convenient to install the roller and the finger-clamping body, and it is also convenient to disassemble and assemble the rotating shaft through the tile connection structure of the tile cover and the seed removing seat, which reduces the difficulty of disassembling and assembling the rotating shaft. At the same time, the roller and the finger-clamping body can be installed on the front and back sides of the tile cover, which facilitates the separation of the rotation of the roller and the seed clamping action of the finger-clamping body, avoids mutual interference between the seeds and the roller during the seed removing process, improves the seed removing efficiency, and has good adaptability to the size and shape of seeds, thereby achieving the purpose of single-grain precision sowing of large and small seeds.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and relates to a finger-clamping seed taker, a finger-clamping sowing disc and a finger-clamping sowing device. Background Art

[0002] The seed removal device is the core working component of the seed drill for precision seeding, and its performance directly affects the quality of crop planting and farmers' labor costs. Seed removal devices are divided into two categories based on their working principle: mechanical and pneumatic. Pneumatic seed drills have advantages such as good versatility and high reliability, but they also have problems such as complex structure and high failure rate. Mechanical seed removal components disclosed in the prior art have low single seed rates, high finger clamp failure rates, high hole rates, and a narrow range of applications. In addition, the seeding device has a high mechanical damage rate, a complex disassembly and adjustment process when changing plant spacing, poor sealing, and poor economic benefits. These problems directly reduce seeding quality and efficiency, increase farmers' labor costs, and are difficult to promote among farmers.

[0003] The publication number is CN214852740U, and the title is: the seed taker, seed taker device and hole sower have the following defects: the installation cover is difficult to disassemble and assemble, which is not convenient for the disassembly and assembly of the rotating shaft; the seed taker cannot realize the clamping of seeds of various specifications and sizes, and the replacement operation is frequent and the labor intensity is high; when the finger clamp is clamping the seeds, the contact surface with the seeds is small, and the seeds are easily squeezed and squeezed away, and the seeds are easily slipped and cavitation occurs when the seeding disc vibrates during the clamping and rotating process; when the finger clamp is unloading the seeds, the seeds collide with the seed taker seat and cannot enter the hole accurately; the left-right symmetrical cam plate needs to be installed with the core disc with a left-right symmetrical core disc and its matching disc. The installation is difficult, and there are many specifications and models of core disks, which is not convenient for distinguishing core disks and disassembling and maintaining the seed taking device; the observation cover is arranged at the lower part, which is not convenient for straightening and cleaning the seeds clamped in the finger clamp, and also makes the installation space of the seed cleaning door, the seed feeding tube and the fixed disk compact, which increases the difficulty of disassembling and maintaining. When replacing seeds of different varieties, it is necessary to adjust the opening size of the finger clamp and then adjust the position of the cam plate. There is no basis for adjustment and the adjustment is difficult. The adjustment process is more complicated when changing the plant spacing; the disassembly and assembly between the seed taker, the core disk and the belt are complicated, and the belt, the seed taker and the duckbill often make installation more difficult due to the manufacturing error of the belt, which delays production operations. Summary of the Invention

[0004] The present invention provides a finger-clamping seed remover, a finger-clamping sowing tray and a finger-clamping sowing device, which overcome the deficiencies of the above-mentioned prior art and can effectively solve the problems that the seed remover of the prior sowing device cannot realize the clamping of seeds of various specifications and sizes, the replacement operation is frequent and the labor intensity is high, the seeds are easily squeezed and squeezed away when the finger clamping head clamps the seeds, and the seeds are easily slipped and cavitation occurs, and when the finger clamping head unloads the seeds, the seeds collide with the seed removal seat and cannot accurately enter the hole, and the disassembly and assembly between the seed remover, the core tray and the belt are complicated, and the belt, the seed remover and the duckbill often have production errors between the belt, making the installation more difficult and delaying the production operation.

[0005] One of the technical solutions of the present invention is achieved through the following measures: a finger-clamping seed remover, comprising a seed removing seat, a finger clamp body, a tile cover, a rotating shaft, a first torsion spring and a roller, the upper and lower sides of the seed removing seat being concentric arc surfaces, an upper right side of the upper portion of the seed removing seat being provided with an upper rotating groove opening upward and passing through front and back, a lower rotating groove opening forward is provided on the front side of the lower portion of the seed removing seat corresponding to the position below the upper rotating groove, an arc-shaped rear mounting groove is provided on the front side of the seed removing seat which is connected with the lower portion of the upper rotating groove, the lower portion of the rear mounting groove is connected with the upper portion of the lower rotating groove, a left fixed groove opening upward and a right fixed groove opening upward are respectively provided on the upper front side of the seed removing seat corresponding to the left and right positions of the rear mounting groove, a tile cover is provided in the left fixed groove, a spacing is provided between the left side of the tile cover and the left side of the seed removing seat, and between the right side of the tile cover and the right side of the seed removing seat, a spacing is provided on the rear side of the middle portion of the tile cover The cam is secured to the rear of the drawer and is secured to the base with an L-shaped spring which is fixed to the drawer's upper end.

[0006] The following is a further optimization and / or improvement of one of the above-mentioned technical solutions:

[0007] The front side of the lower part of the seed taking seat corresponding to the position below the above-mentioned finger clamp body can be provided with a connecting groove opening forward, the upper wall and the lower wall of the connecting groove are both arc surfaces concentric with the upper side of the seed taking seat, the left end and the right end of the connecting groove extend to the left and right sides of the seed taking seat respectively, and the lower side of the seed taking seat corresponding to the position below the left end of the finger clamp body is provided with a first lower seed groove opening forward and connected to the lower part of the connecting groove.

[0008] The inner wall of the first seed clamping groove is provided with a V-shaped seed selection groove which is left-right and opened backward.

[0009] A second seed lowering groove opening forward can be provided on the front side of the seed taking seat corresponding to the position below the finger clamp body, and the lower part of the second seed lowering groove is communicated with the upper part of the connecting groove.

[0010] The rear side of the tile cover corresponding to the right position of the front mounting slot can be provided with a closing limit surface that abuts against the front side of the right part of the crank arm, and the upper side of the rear part of the tile cover corresponding to the left position of the rotating shaft is provided with an opening limit surface that is inclined from left to right and from back to front, and the right part of the opening limit surface is tangent to the inner wall of the front mounting slot.

[0011] Positioning holes may be provided on the rear side of the tile covers at the left and right positions corresponding to the rotating shaft, and a positioning column with a rear end fixed to the corresponding position of the seed taking seat is installed in each positioning hole.

[0012] The second technical solution of the present invention is achieved through the following measures: a finger-clamping seeding disc, including a central shaft, a fixed disc, a core disc, a movable disc, a cam plate, an insert and a finger-clamping seed remover, the central shaft is arranged in a front-to-back direction, and a movable disc is installed on the outer side of the rear end of the central shaft in a sealed and rotatable manner, an inner shaft sleeve is fixed at the center of the front end of the movable disc, which is coaxially sleeved on the outer side of the rear end of the central shaft, an outer shaft sleeve is rotatably installed on the outer side of the inner shaft sleeve, a core disc is fixed on the outer side of the front end of the outer shaft sleeve, a fixed disc is fixed on the outer side of the front end of the central shaft corresponding to the front position of the core disc, a front fixed ring platform is fixed on the rear end surface of the fixed disc close to the outer side, a side ring cover is installed on the outer side of the fixed disc, a front retaining ring groove is provided at the rear end of the side ring cover, a rear retaining ring groove is provided at the front end of the movable disc corresponding to the position of the front retaining ring groove, and a front retaining ring groove is provided at the front end of the movable disc. The annular groove is provided with a belt whose rear end is fixed in the rear retaining ring groove and is coaxially mounted on the outer side of the core disk. The belt is evenly distributed with a number of radially penetrating seeding holes along the circumference. A finger-clamping seed remover is fixedly installed on the inner side of the belt corresponding to each seeding hole position. The seed removal seat of each finger-clamping seed remover is close to the front side of the roller and is close to the rear end of the core disk. The connecting groove is provided with a seed guide shell with a space between the left and right sides and the left and right sides of the seed removal seat. The seed guide shell corresponding to the front position of the rotating shaft has an outer guide groove opening upward, and the seed guide shell corresponding to the rear position of the rotating shaft has an inner guide groove opening downward. The inner wall of the outer guide groove located in front of the rotating shaft in the counterclockwise direction is provided with a seed guide channel connected to the inner guide groove and in a front-to-back direction. A seed baffle is fixed on the inner side of the outer guide groove corresponding to the right position of the seed guide channel. A clamping block that is fixed to the front of the first lower seed groove is fixed on the outer side of the front of the seed guide shell in front of the first seed guide channel, and an insert block is clamped between each two adjacent finger-clamping seed removers, and overlapping blocks are fixed on the left and right sides of the upper part of the insert block, and each overlapping block is located in the gap between the corresponding tile cover and the seed removal seat, and the left and right sides of the lower part of the insert block are in contact with the left and right sides of the corresponding seed guide shell, and the lower part of the insert block has an extended guide groove corresponding to the outer guide groove, and the left and right sides of the insert block corresponding to the lower position of the overlapping block are fit with the seed removal seat at the corresponding position, and a fan-shaped cam plate is provided on the rear side of the lower part of the core disk at the position below the corresponding central axis, and a number of "T"-shaped adjustment grooves are evenly distributed on the inner annular surface of the cam plate along the circumference, and a rear side of the cam plate is provided with a corresponding to the adjustment groove and connected to the rear end of the adjustment groove. The adjusting hole of the cam plate corresponding to each adjusting hole position is provided with an adjusting marking layer, and the rear side of the core disk corresponding to each adjusting hole position is provided with an adjusting screw hole, and each adjusting slot is provided with an adjusting bolt whose front end is screwed into the adjusting screw hole in the corresponding position. The rear side of the cam plate is provided with a discharging section, a first clamping section, a buffer section and a second clamping section in a clockwise direction. The distance between the rear side surface of the first clamping section and the front side surface of the cam plate is the same as the distance between the rear side surface of the second clamping section and the front side surface of the cam plate. The distance between the rear side surface of the first clamping section and the front side surface of the cam plate is smaller than the distance between the rear side surface of the discharging section and the front side surface of the cam plate, and the distance between the rear side surface of the first clamping section and the front side surface of the cam plate is larger than the distance between the rear side surface of the buffer section and the front side surface of the cam plate.The minimum distance between the outer side of each roller and the front side of the cam plate is no greater than the distance between the rear side of the buffer section and the front side of the cam plate. The seed unloading section, the first seed clamping section, the buffer section and the second seed clamping section are smoothly connected together. The seed unloading section has a climbing surface on the right side. The rear side of the movable disc corresponding to the cam plate position is provided with a front-to-rear through inspection hole. The rear side of the movable disc corresponding to the inspection hole position is detachably fixed with an inspection cover. The rear side of the fixed disc corresponding to the right position of the center axis is fixed with an arc-shaped baffle opening to the left. A seed-blocking brush with a front end detachably fixed to the lower part of the fixed disc is provided between the left end of the baffle corresponding to the position below the center axis and the inner side of the fixed ring platform. The rear side of the fixed disc, the inner side of the fixed ring platform, the front side of the core disc, the inner side of the baffle, the left side of the seed-blocking brush, the front side of the corresponding seed-taking seat and A seed storage cavity is formed on the front side of the corresponding insert block, and a seed unloading channel is formed between the outer side of the baffle and the inner side of the fixed ring platform. A seed through hole connected to the seed unloading channel is provided on the outer side of the lower part of the fixed ring platform corresponding to the right position of the seed blocking brush. A fan-shaped inspection hole is provided on the front side of the upper part of the fixed plate corresponding to the position above the center axis. An observation cover is provided on the front side of the fixed plate corresponding to the inspection hole position. Left and right clamping bolts that can compress the observation cover are provided at intervals on the left and right sides of the upper part of the fixed plate. A seed cleaning brush is fixedly installed on the rear side of the middle part of the observation cover. A limiting mounting hole that passes through the front and back is provided on the front side of the right part of the fixed plate corresponding to the right position of the center axis. A seed entry hole that is connected inside and outside is provided on the front side of the left part of the fixed plate corresponding to the lower left position of the center axis. A seed entry tube is detachably fixedly installed on the front side of the fixed plate corresponding to the seed entry hole position.

[0013] The following is a further optimization and / or improvement of the second technical solution of the above invention:

[0014] The rear side of the core disc may be evenly spaced along the circumference with four adjusting screw holes, and the two adjusting screw holes on the left and the two adjusting screw holes on the right are symmetrically distributed.

[0015] A seed cleaner can be fixedly installed on the rear side of the fixed plate corresponding to the left position of the left tightening bolt. The rear part of the seed cleaner and the rear part of the seed cleaning brush are both inclined with the front lower and the rear higher. The rear end of the seed cleaner and the rear end of the seed cleaning brush can be close to the rear side of the finger clamp body.

[0016] The front side of the lower part of the fixed plate corresponding to the left side position of the seed blocking brush can be provided with a seed cleaning hole that passes through from front to back. A first connecting boss is fixed on the front side of the fixed plate corresponding to the position of the seed cleaning hole. A seed cleaning door is rotatably installed on the front side of the left part of the first connecting boss. A pin is provided between the seed cleaning door and the right part of the first connecting boss. A second connecting boss is fixed on the front side of the fixed plate corresponding to the position of the seed inlet hole, and the second connecting boss is fixedly installed together with the seed inlet tube.

[0017] The front end of the above-mentioned core disk is provided with an annular groove opening forward, and a limit block is fixed in the annular groove corresponding to the position above the central axis, and two hinge plates are fixedly installed at intervals on the front side of the fixed disk corresponding to the right side of the central axis, and each hinge plate is provided with a first hinge through hole, and a front limit hole is provided on the front side of the fixed disk corresponding to the right side of the limit block, and a pawl with a rear end located in the annular groove and a left end in contact with the right end of the limit block is installed in the front limit hole. After the front end of the pawl passes through the front limit hole, it is fixedly installed with the left end of the hinge arm arranged between the hinge plates, and the right end of the hinge arm is provided with a second hinge through hole corresponding to the first hinge through hole, and the right end of the hinge arm is hingedly connected together by a mounting bolt which is screwed with a mounting nut and passes through the first hinge through hole and the second hinge through hole in sequence by a screw, and the mounting bolt is provided with a second torsion spring that makes the rear end of the pawl press against the inner wall of the rear of the annular groove.

[0018] The third technical solution of the present invention is achieved through the following measures: a finger-clamping sowing device, including a finger-clamping sowing plate and a duckbill hole former corresponding to the seed dropping hole, the duckbill hole former including a bottom plate, a movable duckbill, a fixed duckbill, a positioning platform and a reset spring, a bottom plate with the same width as the belt width is fixedly installed on the outside of the belt corresponding to each seed dropping hole position, a fixed duckbill, a hinge plate and a positioning platform are fixed at intervals along the counterclockwise direction on the outside of the bottom plate, a sowing hole connected to the seed dropping hole is provided on the outside of the bottom plate corresponding to the position between the hinge plate and the fixed duckbill, a movable duckbill is hingedly installed on the side of the hinge plate away from the bottom plate, the movable duckbill has side wings that form a seed storage cavity with the fixed duckbill and the hinge plate, a slag discharge trough connected to the seed storage cavity is provided on the side of the hinge plate close to the bottom plate, and a reset spring is installed between the movable duckbill and the positioning platform.

[0019] The structure of the present invention is reasonable and compact. Gaps are provided between the left side of the tile cover and the left side of the seed taking seat, as well as between the right side of the tile cover and the right side of the seed taking seat, which is convenient for installation and sealing between multiple seed taking seats. By arranging the upper rotating groove and the lower rotating groove, it is convenient for installation of the roller and the finger clamp body, and it is also convenient to disassemble and assemble the rotating shaft through the tile connection structure of the tile cover and the seed taking seat, which reduces the difficulty of disassembly and assembly of the rotating shaft. At the same time, the roller and the finger clamp body can be installed on the front and rear sides of the tile cover, which is convenient for separating the rotation of the roller from the seed clamping action of the finger clamp body, avoiding mutual interference between seeds and rollers during seed taking, improving seed taking efficiency, and having good adaptability to seed size and shape, thereby achieving the purpose of single-grain precision sowing of large and small seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 This is a schematic diagram of the main structure of Example 1.

[0021] Attachment Figure 2 It is a schematic diagram of the three-dimensional structure of embodiment 1.

[0022] Attachment Figure 3 It is a schematic diagram of the three-dimensional structure of the seed seat in Example 1.

[0023] Attachment Figure 4 It is a schematic diagram of the three-dimensional structure of the tile cover in Example 1.

[0024] Attachment Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating shaft in Example 1.

[0025] Attachment Figure 6 This is a schematic diagram of the main structure of Example 2.

[0026] Attachment Figure 7 For attachment Figure 6 Schematic diagram of the left side cross-sectional structure.

[0027] Attachment Figure 8 This is a schematic diagram of the main structure of the fixed plate in Example 2.

[0028] Attachment Figure 9 For attachment Figure 8 Schematic diagram of the rear view structure.

[0029] Attachment Figure 10 This is a schematic diagram of the main structure of the moving disk in Example 2.

[0030] Attachment Figure 11 This is a schematic diagram of the rear structural view of the side ring cover in Example 2.

[0031] Attachment Figure 12 Schematic diagram of the main structure of the core disk in Example 2.

[0032] Attachment Figure 13 For attachment Figure 12 Schematic diagram of the left side cross-sectional structure.

[0033] Attachment Figure 14 For attachment Figure 12 Schematic diagram of the rear view structure.

[0034] Attachment Figure 15 This is a bottom view of the cam plate in the second embodiment.

[0035] Attachment Figure 16 This is a schematic diagram of the rear view structure of the cam plate in Example 2.

[0036] Attachment Figure 17 This is a schematic diagram of the cross-sectional structure of the seed guide shell in Example 2.

[0037] Attachment Figure 18 This is a schematic diagram of the three-dimensional structure of the seed guide shell in Example 2.

[0038] Attachment Figure 19 This is a schematic diagram of the left side cross-sectional structure of the plug in the second embodiment.

[0039] Attachment Figure 20 It is a schematic diagram of the three-dimensional structure of the plug-in block in the second embodiment.

[0040] Attachment Figure 21 This is a schematic diagram of the main structure of seven finger-clamping seed removers, seven seed guide shells and seven insert blocks installed together.

[0041] Attachment Figure 22 For attachment Figure 6 Schematic diagram of the enlarged structure of the middle pawl with A pointing upward.

[0042] Attachment Figure 23 This is a schematic diagram of the main structure of Example 3.

[0043] Attachment Figure 24 This is a schematic diagram of the main view and partial cross-section of the duckbill burrowing device in Example 3.

[0044] The codes in the accompanying drawings are: 1 for seeding seat, 2 for finger clamp body, 3 for rotating shaft, 4 for first torsion spring, 5 for upper rotating groove, 6 for lower rotating groove, 7 for rear mounting groove, 8 for front mounting groove, 9 for left fixed groove, 10 for right fixed groove, 11 for first seed clamping groove, 12 for second seed clamping groove, 13 for crank arm, 14 for tile cover, 15 for roller, 16 for connecting groove, 17 for first seeding groove, 18 for second seeding groove, 19 for closing limit surface, 20 for opening Limiting surface, 21 is positioning column, 22 is positioning hole, 23 is seed selection groove, 24 is block, 25 is outer guide groove, 26 is inner guide groove, 27 is inspection cover, 28 is seed guide channel, 29 is center axis, 30 is fixed plate, 31 is fixed ring platform, 32 is side ring cover, 33 is core plate, 34 is outer sleeve, 35 is seed stop plate, 36 is moving plate, 37 is belt, 38 is cam plate, 39 is seed unloading section, 40 is first seed clamping section, 41 is buffer section, 42 is The second seed clamping section, 43 is an extended guide groove, 44 is an insert block, 45 is a lap block, 46 is a second connecting boss, 47 is an inner sleeve, 48 is a seed drop hole, 49 is a baffle, 50 is a seed blocking brush, 51 is a seed storage chamber, 52 is a seed unloading channel, 53 is a seed through hole, 54 is an observation cover, 55 is a seed inlet tube, 56 is an annular groove, 57 is a limit block, 58 is a hinged plate, 59 is a pawl, 60 is a hinged arm, 61 is a mounting bolt, 62 is a second torsion spring, 63 is a limit Position mounting hole, 64 is the seed cleaning door, 65 is the latch, 66 is the adjustment hole, 67 is the left tightening bolt, 68 is the right tightening bolt, 69 is the adjustment screw hole, 70 is the seed cleaner, 71 is the seed cleaning brush, 72 is the seed guide shell, 73 is the adjustment identification layer, 74 is the front snap ring groove, 75 is the rear snap ring groove, 76 is the bottom plate, 77 is the movable duckbill, 78 is the fixed duckbill, 79 is the side wing, 80 is the slag discharge trough, 81 is the positioning platform, 82 is the reset spring, and 83 is the hinge plate. DETAILED DESCRIPTION

[0045] The present invention is not limited to the following embodiments, and specific implementation methods can be determined based on the technical solutions of the present invention and actual conditions.

[0046] In the present invention, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 For example, the positional relationships of front, back, up, down, left, and right are determined according to the layout directions of the drawings in the specification.

[0047] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0048] Example 1: As shown in the attached Figure 1 、 2 As shown in Figures 3, 4, and 5, the finger-clamping seed remover includes a seed removing seat 1, a finger clamp body 2, a tile cover 14, a rotating shaft 3, a first torsion spring 4, and a roller 15. The upper and lower sides of the seed removing seat 1 are concentric arc surfaces. An upper rotating groove 5 with an opening upward and passing through the front and back is provided on the right side of the upper portion of the seed removing seat 1. A lower rotating groove 6 with an opening forward is provided on the front side of the lower portion of the seed removing seat 1 corresponding to the position below the upper rotating groove 5. An arc-shaped rear mounting groove 7 is provided on the front side of the seed removing seat 1, the upper portion of which is connected to the lower portion of the upper rotating groove 5. The lower part of the rear mounting groove 7 is connected to the upper part of the lower rotating groove 6, and the upper front side of the seed-taking seat 1 corresponding to the left and right positions of the rear mounting groove 7 is respectively provided with a left fixed groove 9 with an upward opening and a right fixed groove 10 with an upward opening. The left fixed groove 9 is provided with a tile cover 14 fixedly installed in the right fixed groove 10 on the right side. There is a gap between the left side of the tile cover 14 and the left side of the seed-taking seat 1, as well as between the right side of the tile cover 14 and the right side of the seed-taking seat 1. The rear side of the middle part of the tile cover 14 is provided with an arc-shaped front mounting groove 8 corresponding to the rear mounting groove 7. The front mounting groove 8 and the rear mounting groove 7 can form a mounting hole with a circular cross-section. A rotating shaft 3 is rotatably installed in the mounting hole, and a first torsion spring 4 is provided between the rotating shaft 3 and the seed-taking seat 1. An "L"-shaped crank arm 13 is fixedly installed on the rear end of the rotating shaft 3. A roller 15 with a central axis radially arranged along the upper side surface of the seed-taking seat 1 is rotatably installed on the upper right end of the crank arm 13. The lower end of the rotating shaft 3 corresponding to the position below the tile cover 14 is fixedly installed with a The finger clamp body 2 at the front left side refers to the rear side of the left end of the finger clamp body 2, which is provided with a first seed clamping groove 11 and a second seed clamping groove 12 from right to left in sequence. The first seed clamping groove 11 and the second seed clamping groove 12 are both open to the rear, and the distance between the left end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is greater than the distance between the right end of the second seed clamping groove 12 and the front side of the seed taking seat 1, and the distance between the lower end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is greater than the distance between the upper end of the second seed clamping groove 12 and the front side of the seed taking seat 1.

[0049] According to the needs, the finger clamp body 2, the rotating shaft 3 and the crank arm 13 can be set as a whole. The left and right sides of the seed taking seat 1 are symmetrical to each other. The first seed clamping groove 11 is an arc-shaped groove with an opening facing backward, and the second seed clamping groove 12 is a semi-conical groove with an opening facing backward. During use, the left and right sides of the seed taking seat 1 are symmetrical to each other, which can reduce the difficulty of distinguishing the seed taking seat 1 from the seed taking seat 1 due to its symmetrical structure and enhance versatility. There is a gap between the left side of the tile cover 14 and the left side of the seed taking seat 1, as well as between the right side and the right side of the seed taking seat 1, which is convenient for the installation and sealing between multiple seed taking seats 1. By setting the upper rotating groove 5 and the lower rotating groove 6, it is convenient for the installation of the roller 15 and the finger clamp body 2, and it is also convenient to disassemble and assemble the rotating shaft 3 through the tile connection structure of the tile cover 14 and the seed taking seat 1, which reduces the difficulty of disassembling the rotating shaft 3. The difficulty of installation is eliminated, and the roller 15 and the finger clamp body 2 can be installed on the front and rear sides of the tile cover 14, which is convenient for separating the rotation of the roller 15 from the clamping action of the finger clamp body 2, avoiding interference between the seeds and the roller 15 during the seeding process, and improving the seeding efficiency. When clamping larger seeds, since the distance between the left end of the second seed clamping groove 12 and the front side of the seeding seat 1 is greater than the distance between the rear end of the second seed clamping groove 12 and the front side of the seeding seat 1, the larger seeds cannot enter the first seed clamping groove 11, so the larger seeds enter the second seed clamping groove 12 by relying on the first torsion spring. 4 is clamped by the finger clamp body 2 by the elastic force of the finger clamp body 2, so that larger seeds can be clamped; when clamping smaller seeds, since the distance between the left end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is greater than the distance between the rear end of the second seed clamping groove 12 and the front side of the seed taking seat 1, and the first seed clamping groove 11 and the second seed clamping groove 12 are both opened backward, the smaller seeds enter the first seed clamping groove 11 and are clamped by the elastic force of the first torsion spring 4, while the smaller seeds enter the second seed clamping groove 12 and cannot be clamped by the finger clamp body 2 when rotating and fall into the seed bin. Finally, only one seed is retained in the first seed-holding groove 11. The finger clamp 2 can firmly clamp the seed to avoid cavitation. It can also clamp seeds of different sizes and shapes, such as granular seeds such as corn, cotton, beans, and peanuts. It has good adaptability to seed size and shape. The distance between the lower end of the second seed-holding groove 12 and the front side of the seed-taking seat 1 is greater than the distance between the upper end of the second seed-holding groove 12 and the front side of the seed-taking seat 1. After the finger clamp 2 is released, the seed can fall smoothly, thereby achieving the purpose of single-grain precision sowing of large and small seeds. The present invention has a reasonable and compact structure, is easy to use, and has the characteristics of safety, labor saving, simplicity, and high efficiency.

[0050] The above-mentioned finger-clamping seed remover can be further optimized and / or improved according to actual needs:

[0051] As attached Figure 1 、 2As shown in Figure 3, a connecting groove 16 opening forward is provided on the front side of the lower part of the seed taking seat 1 corresponding to the position below the finger clamp body 2, and the upper wall and lower wall of the connecting groove 16 are both arc surfaces concentric with the upper side of the seed taking seat 1. The left end and the right end of the connecting groove 16 extend to the left and right sides of the seed taking seat 1 respectively, and a first lower seed groove 17 opening forward and communicating with the lower part of the connecting groove 16 is provided on the lower side of the seed taking seat 1 corresponding to the position below the left end of the finger clamp body 2.

[0052] During use, the seeds clamped by the finger clamp 2 can enter the hole through the first seeding groove 17 after falling, which is convenient for accurate sowing of seeds. It is also convenient to install the seed guide mechanism and the duckbill, guide the seeds into the duckbill, and complete the sowing operation.

[0053] As attached Figure 5 As shown, a V-shaped seed selection groove 23 is provided on the inner wall of the first seed clamping groove 12, which is left-right and opened backward.

[0054] During use, a V-shaped seed selection groove 23 is provided on the inner wall of the first seed clamping groove 11, which is left-right and opens backward, and can increase the contact area between the finger clamp body 2 and the seeds, so that the finger clamp body 2 can firmly clamp the seeds.

[0055] As attached Figure 1 、 3 As shown, a second lower seeding groove 18 opening forward is provided on the front side of the seed taking seat 1 corresponding to the position below the finger clamp body 2 , and the lower portion of the second lower seeding groove 18 is communicated with the upper portion of the connecting groove 16 .

[0056] During use, by setting the second seeding groove 18, the seeds clamped by the finger clamp 2 can play a seed sliding role after falling, preventing the seeds from colliding with the front side of the seed removal seat 1 after falling and being unable to enter the first seeding groove 17, so that the seeds can smoothly enter the first seeding groove 17 after the finger clamp 2 is opened, and then the sowing operation is realized.

[0057] As attached Figure 2 、 4 As shown, the rear side of the tile cover 14 corresponding to the right position of the front mounting groove 8 is provided with a closing limit surface 19 that abuts against the front side of the right part of the crank arm 13, and the upper side of the rear part of the tile cover 14 corresponding to the left position of the rotating shaft 3 is provided with an opening limit surface 20 that is inclined from left to right and from back to front, and the right part of the opening limit surface 20 is tangent to the inner wall of the front mounting groove 8.

[0058] During use, by setting the opening limit surface 20, the finger clamp body 2 can be prevented from flipping over after the first torsion spring 4 breaks. By setting the closing limit surface 19, the finger clamp body 2 can be prevented from colliding and being damaged with the seed removal seat when closing.

[0059] As attached Figure 3 、 4As shown, positioning holes 22 are provided on the rear side of the tile cover 14 corresponding to the left and right positions of the rotating shaft 3, and a positioning column 21 is installed in each positioning hole 22, the rear end of which is fixed to the corresponding position of the seed taking seat 1.

[0060] During use, such a setting can improve the installation accuracy of the tile cover 14 and the seed removal seat 1, and can also prevent the tile cover 14 from shifting during the operation of the rotating shaft 3, causing the rotating shaft 3 to get stuck, thereby improving the reliability of seed removal and sowing operations.

[0061] Example 2: As shown in the attached Figures 6 to 22As shown, the finger-clamping seeding disc includes a central shaft 29, a fixed disc 30, a core disc 33, a movable disc 36, a cam plate 38, an insert 44 and a finger-clamping seed remover. The central shaft 29 is arranged in a front-to-back direction. The movable disc 36 is sealed and rotatably installed on the outer side of the rear end of the central shaft 29. An inner shaft sleeve 47 coaxially sleeved on the outer side of the rear end of the central shaft 29 is fixed at the center of the front end of the movable disc 36. The outer shaft sleeve 34 is rotatably installed on the outer side of the inner shaft sleeve 47. The core disc 33 is fixed on the outer side of the front of the outer shaft sleeve 34. The fixed disc 30 is fixed on the outer side of the front of the central shaft 29 corresponding to the front position of the core disc 33. The rear end surface of the fixed disc 30 close to the outer side is fixed with a front-to-back fixed ring platform 31. The outer side of the fixed disc 30 is sleeved with a side ring cover 32 fixedly installed with the movable disc 36. The rear end of the side ring cover 32 is provided with a front The front end of the movable disc 36 at the position of the front snap ring groove 74 is provided with a rear snap ring groove 75, and the front snap ring groove 74 is provided with a belt 37 whose rear end is fixed in the rear snap ring groove 75 and is coaxially mounted on the outside of the core disc 33. The belt 37 is evenly distributed with a number of radially penetrating seeding holes 48 along the circumference, and a finger-clamping seed remover is fixedly installed on the inner side of the belt 37 corresponding to the position of each seeding hole 48. The front side of the seed removal seat 1 of each finger-clamping seed remover close to the roller 15 is close to the rear end of the core disc 33, and a seed guide shell 72 with a spacing on the left and right sides of the seed removal seat 1 is provided in the connecting groove 16. The seed guide shell 72 corresponding to the front position of the rotating shaft 3 has an outer guide groove 25 with an opening upward, and the seed guide shell 72 corresponding to the rear position of the rotating shaft 3 has an inner guide groove 25 with an opening downward. Slot 26, the inner wall of the outer guide groove 25 located in front of the rotating shaft 3 in the counterclockwise direction is provided with a seed guide channel 28 that is connected to the inner guide groove 26 and is in the front-to-back direction, and a seed blocking plate 35 is fixed on the inner side of the outer guide groove 25 corresponding to the right side of the seed guide channel 28, and a card block 24 that is fixed to the front of the first lower seed groove 17 is fixed on the outer side of the front of the seed guide shell 72. An insert block 44 is provided between each adjacent two finger-clamping seed removers, and overlapping blocks 45 are fixed on the left and right sides of the upper part of the insert block 44. Each overlapping block 45 is located in the gap between the corresponding tile cover 14 and the seed removal seat 1, and the left and right sides of the lower part of the insert block 44 are in contact with the left and right sides of the corresponding seed guide shell 72. The lower part of the insert block 44 has an extended guide groove 43 corresponding to the outer guide groove 25, and the insert block corresponding to the lower position of the overlapping block 45 The left and right sides of 44 are both fitted with the seed taking seat 1 at the corresponding position. A fan-shaped cam plate 38 is provided on the rear side of the lower part of the core disk 33 at the position below the central axis 29. The inner ring surface of the cam plate 38 is evenly spaced along the circumference with a number of "T"-shaped adjustment grooves. An adjustment hole 66 corresponding to the adjustment groove and connected to the rear end of the adjustment groove is provided on the rear side of the cam plate 38. An adjustment identification layer 73 is provided on the rear side of the cam plate 38 corresponding to the position of each adjustment hole 66. An adjustment screw hole 69 is provided on the rear side of the core disk 33 corresponding to the position of each adjustment hole 66. An adjustment bolt whose front end is screwed into the adjustment screw hole 69 at the corresponding position is provided in each adjustment groove. A seed unloading section 39, a first seed clamping section 40, a buffer section 41 and a second seed clamping section 42 are provided on the rear side of the cam plate 38 in a clockwise direction.The distance between the rear side of the first seed clamping section 40 and the front side of the cam plate 38 is the same as the distance between the rear side of the second seed clamping section 42 and the front side of the cam plate 38. The distance between the rear side of the first seed clamping section 40 and the front side of the cam plate 38 is smaller than the distance between the rear side of the seed unloading section 39 and the front side of the cam plate 38. The distance between the rear side of the first seed clamping section 40 and the front side of the cam plate 38 is greater than the distance between the rear side of the buffer section 41 and the front side of the cam plate 38. The minimum distance between the outer side of each roller 15 and the front side of the cam plate 38 is no greater than the distance between the rear side of the buffer section 41 and the front side of the cam plate 38. The distance between the side and the front side of the cam plate 38, the unloading section 39, the first clamping section 40, the buffer section 41 and the second clamping section 42 are smoothly connected together, the unloading section 39 has a climbing surface on the right side, and the rear side of the movable disc 36 corresponding to the position of the cam plate 38 is provided with a front-to-rear through inspection hole, and the rear side of the movable disc 36 corresponding to the position of the inspection hole is detachably fixed with an inspection cover 27, and the rear side of the fixed disc 30 corresponding to the right position of the central axis 29 is fixedly installed with an arc-shaped baffle 49 with an opening to the left, and a baffle 49 corresponding to the position below the central axis 29 is provided between the left end of the baffle 49 and the inner side of the fixed ring 31. There is a seed-blocking brush 50 with a detachable and fixed installation at the front end and the lower part of the fixed plate 30. The rear side of the fixed plate 30, the inner side of the fixed ring platform 31, the front side of the core plate 33, the inner side of the baffle 49, the left side of the seed-blocking brush 50, the front side of the corresponding seed-taking seat 1 and the front side of the corresponding insert 44 form a seed storage cavity 51. A seed-discharging channel 52 is formed between the outer side of the baffle 49 and the inner side of the fixed ring platform 31. A seed-discharging hole 53 is provided on the outer side of the lower part of the fixed ring platform 31 corresponding to the right position of the seed-blocking brush 50, which is connected to the seed-discharging channel 52. A front-to-back through hole 53 is provided on the upper front side of the fixed plate 30 corresponding to the position above the central axis 29. The fan-shaped inspection hole is located on the front side of the fixed plate 30 at the inspection hole position. A left and right compression bolts 67 and 68 are spaced apart on the upper left and right sides of the fixed plate 30 to tighten the observation cover 54. A seed cleaning brush 71 is fixedly mounted on the rear side of the central portion of the observation cover 54. A front-to-back limiter mounting hole 63 is provided on the front right side of the fixed plate 30 at the right side of the central axis 29. A seed inlet hole that communicates inside and outside is provided on the front left side of the fixed plate 30 at the lower left side of the central axis 29. A seed inlet pipe 55 is detachably fixedly mounted on the front side of the fixed plate 30 at the seed inlet hole position.

[0062] According to the requirements, the moving disc 36 is integrally provided with the inner sleeve 47, the core disc 33 is integrally provided with the outer sleeve 34, a first bearing is installed between the inner side of the front of the moving disc 36 and the outer side of the rear end of the center shaft 29, the rear end of the inner ring of the first bearing is in contact with the gasket that is detachably fixedly installed on the rear end of the center shaft 29, a dust cap is sealed and installed on the inner side of the rear end of the moving disc 36 corresponding to the rear position of the first bearing, the front end of the inner ring of the first bearing is in contact with the shoulder of the center shaft 29, the front end of the outer ring of the first bearing is in contact with the rear end of the inner sleeve 47, the second bearing and the third bearing are respectively installed between the outer side of the rear end and the outer side of the front end of the inner sleeve 47 and the inner side of the outer sleeve 34, a fourth bearing is installed between the inner side of the front end of the inner sleeve 47 and the outer side of the center shaft 29, the rear end of the inner ring of the second bearing The end is in contact with the front end of the movable plate 36, the front end of the inner ring of the fourth bearing and the front end of the outer ring of the third bearing are in contact with the ring sleeve fixed to the rear end of the fixed plate 30, the first bearing, the second bearing, the third bearing and the fourth bearing can all be existing well-known bearings, such as deep groove ball bearings, a fixed pressure plate is fixedly installed on the outer side of the front of the central shaft 29, and three front fixing holes are evenly distributed along the circumference on the front side of the fixed pressure plate. A rear fixing hole is provided on the front side of the fixed plate 30 corresponding to each front fixing hole position, and the rear fixing hole includes a straight hole section with a circular cross-section and a prism section with a regular hexagonal cross-section. The rear end of the straight hole section is connected to the front end of the prism section, and the fixed plate 30 and the central shaft 29 are screwed with a lock after passing through the straight hole section and the front fixing hole at the corresponding position from back to front through a screw. The locking bolts of the tightening nuts are removable and fixed together. The seed guide shell 72 is integrally provided with the block 24, and the insert block 44 is integrally provided with the overlap block 45. The left and right sides of the insert block 44 are symmetrical, which is more convenient for installation and production. There is no need to distinguish between left and right, which reduces delivery errors. A gap is left between the rear end of the insert block 44 and the front end of the movable disk 36 to facilitate the discharge of debris. The front retaining ring groove 74 is provided with a belt 37 fixed at the rear end in the rear retaining ring groove 75 and coaxially mounted on the outside of the core disk 33. The belt 37, the side ring cover 32 and the movable disk 36 are fixed into one by a number of connecting bolts distributed at intervals along the circumference. Alternatively, the front and rear sides of the seed taking seat 1 are protruded outward and are respectively clamped in the front retaining ring groove 74 and the rear retaining ring groove 75, and then the finger-clamping seed taker, the side ring cover 32 and The movable disc 36 is fixed into one body by a number of connecting bolts distributed at intervals along the circumference. The side ring cover 32 and the movable disc 36 can be rolled on the ground to achieve sowing. The front sides of the seed taking seat 1 and the insert block 44 away from the finger clamp body 2 are close to the rear side of the core disc 33. The front sides of the seed taking seat 1 and the insert block 44 close to the finger clamp body 2 are close to the rear end of the fixed ring platform 31. The front inner side of the seed guide shell 72 and the front inner side of the insert block 44 are close to the outer side of the fixed ring platform 31. The limiting mounting hole 63 includes a straight hole section with a circular cross-section and a prism section with a regular hexagonal cross-section. The rear end of the straight hole section is connected to the front end of the prism section. An adjustment identification layer 73 is provided on the rear side of the cam plate 38 corresponding to each adjustment hole 66 position. The identification layer can be printed or made into a protrusion by existing well-known laser engraving technology.A circle of adjustment values ​​that decrease in a clockwise direction can be printed on the back side of the cam plate 38 at each adjustment hole 66, and the adjustment direction can be printed below the adjustment hole 66.

[0063] During use, such a setting makes it easy to quickly assemble the seed-taking device and the seeder, and also makes it easy to install the seed-taking device on a conventional row seeding device, with a wide range of applications. By setting the observation cover 54, it is convenient to observe the actual seed clamping status for adjustment. The cam plate 38 can enable the finger clamp body 2 of the finger-clamping seed-taking device to fill the seeds for the second time, and re-fill and adjust the two seeds that were not clamped or clamped during the first filling or the one seed that was not clamped well, so that the finger clamp body 2 finally clamps only one seed, thereby improving the seed filling rate, the single seed rate is high, and the void rate is small. By setting the plug block 44 and the overlap block 45, the product structure can be simplified and the parts to be replaced when changing the plant spacing can be reduced. By setting the limiting mounting hole 63, the seed-taking device can be limited or fixed by the bolts passed through the limiting mounting hole 63 when it is installed on the frame, so as to prevent the fixed plate 30 from affecting the position of the seed after rotation. It is easy to disassemble and assemble, and the left and right sides of the lower part of the plug block 44 The seed guide shell 72 is in contact with the left and right sides of the corresponding seed guide shell 72, which can make the connection between the insert block 44 and the seed taking seat 1 more secure. By setting the seed guide shell 72, after the seed falls into the outer guide groove 25, the seed guide shell 72 carries the seed into the inner groove while continuing to rotate. When it turns to the front and bottom again, it enters the first lower seed groove 17 and the seed drop hole 48 in advance, so that the seed can enter the hole in time, and can still be sown normally at a higher sowing speed. The seed taking device does not break the seeds without adding any lubricant, and the mechanical breakage rate of the seeds is small during sowing. The rear side of the cam plate 38 corresponding to the position of each adjustment hole 66 is provided with an adjustment identification layer 73. When replacing different varieties of seeds, such as corn, cotton, beans, peanuts and other granular seeds, the position of the cam plate 38 can be quickly adjusted according to the adjustment identification layer 73, and then the opening size of the finger clamp body 2 can be adjusted to adapt to the variety of seeds. The adjustment is simple, the adaptability is good, and precision sowing can be achieved.

[0064] The above-mentioned seed taking device can be further optimized and / or improved according to actual needs:

[0065] As attached Figure 13 、 14 As shown, four adjusting screw holes 69 are evenly spaced along the circumference of the rear side of the core disc 33 , and the two adjusting screw holes 69 on the left and the two adjusting screw holes 69 on the right are symmetrically distributed.

[0066] Depending on the requirements, the angle between the center axes of two adjacent adjusting screw holes 69 can be between 20 degrees and 60 degrees, specifically 43 degrees. The angle between the center axes of the two inner adjusting screw holes 69 and the vertical line can be between 10 degrees and 30 degrees, specifically 21.5 degrees. During use, this arrangement allows the two bilaterally symmetrical cam plates 38 to be quickly used with the core disc 33, reducing the number of core disc 33 specifications and the difficulty of distinguishing the core disc 33 and installing the core disc 33 with the two bilaterally symmetrical cam plates 38.

[0067] As attached Figure 6 、 7 As shown, a seed cleaner 70 is fixedly installed on the rear side of the fixed plate 30 corresponding to the left position of the left tightening bolt 67. The rear part of the seed cleaner 70 and the rear part of the seed cleaning brush 71 are both inclined with the front lower and the rear higher. The rear end of the seed cleaner 70 and the rear end of the seed cleaning brush 71 can be close to the rear side of the finger clamp body 2.

[0068] According to the needs, the seed cleaner 70 is a conventionally known technology, such as a conical helical compression spring with a larger left side and a smaller right side, a toothed plate or a cleaning brush. The front end of the seed cleaner 70 is fixed to the fixed plate 30 by bolts. During use, through such a setting, the seed cleaning brush 71 can clean the excess small-sized seeds in the first groove, and the seed cleaner 70 can clean the excess large-sized seeds in the second groove. At the same time, when the finger clamp 2 carries multiple seeds or there are seeds stacked and clamped, it can further clean and remove more than two seeds, correct the seeds that are not firmly clamped, and increase the single seed rate, so that the sowing meets the precision requirements.

[0069] As attached Figure 6 、 7 As shown in Figures 8 and 9, a seed cleaning hole that passes through from front to back is provided on the front side of the lower part of the fixed plate 30 corresponding to the left side position of the seed blocking brush 50, and a first connecting boss is fixed on the front side of the fixed plate 30 corresponding to the position of the seed cleaning hole. A seed cleaning door 64 is rotatably installed on the front side of the left part of the first connecting boss, and a pin 65 is provided between the seed cleaning door 64 and the right part of the first connecting boss. A second connecting boss 46 is fixed on the front side of the fixed plate 30 corresponding to the position of the seed feeding hole, and the second connecting boss 46 is fixedly installed together with the seed feeding tube 55.

[0070] As required, the first and second connecting bosses 46 are integrally provided with the fixed plate 30. During use, the provision of the first and second connecting bosses 46 can increase the length of the connecting bolts used to secure the seed feed tube 55 to the fixed plate 30, making the end face of the fixed plate 30 within the fixing ring 31 flat, thereby preventing the connecting bolt rod from passing through the rear end face of the fixed plate 30, thereby preventing the seeds from colliding and being damaged by the bolt rod during sowing. Furthermore, the connection strength between the seed feed tube 55 and the fixed plate 30 can be enhanced, thereby reducing the failure rate of the seed removal device.

[0071] As attached Figures 6 to 14 As shown, the front end of the core disk 33 is provided with an annular groove 56 opening forward, a limit block 57 is fixed in the annular groove 56 corresponding to the position above the central axis 29, and two hinge plates 58 are fixedly installed at intervals on the front side of the fixed disk 30 corresponding to the right position of the central axis 29. Each hinge plate 58 is provided with a first hinge through hole, and the front side of the fixed disk 30 corresponding to the right side of the limit block 57 is provided with a front limit hole running through the front and back. The rear end is located in the annular groove 56 and the left end is in contact with the right end of the limit block 57. The pawl 59, the front end of the pawl 59 passes through the front limiting hole and is fixedly installed with the left end of the hinged arm 60 provided between the hinge plates 58. The right end of the hinged arm 60 is provided with a second hinged through hole corresponding to the first hinged through hole. The right end of the hinged arm 60 passes through the first hinged through hole and the second hinged through hole in sequence through a screw rod and is hingedly connected together with a mounting bolt 61 screwed with a mounting nut. The mounting bolt 61 is provided with a second torsion spring 62 that makes the rear end of the pawl 59 abut against the rear inner wall of the annular groove 56.

[0072] As required, the pawl 59 and the hinged arm 60 are integrally provided, and a rectangular sealing plate is fixed to the outer front end of the pawl 59. During use, when the movable disc 36 rotates in the direction opposite to the working direction, the roller 15 of the seed taking seat 1 abuts against the left side of the cam plate 38 and causes the core disc 33 to rotate in the opposite direction, so that the finger clamp 2 of the seed taking seat 1 no longer clamps the seeds, preventing the accidentally clamped seeds from flowing into the holes. When the movable disc 36 rotates in the working direction, the roller 15 of the seed taking seat 1 first abuts against the right side of the cam plate 38, causing the core disc 33 to rotate in the working direction. When the core disc 33 rotates to the initial position, that is, when the left end of the pawl 59 contacts the right end of the limit block 57, the core disc 33 stops rotating under the action of the pawl 59, while the seed taking seat 1 continues to rotate in the working direction under the action of the movable disc 36, and contacts the rear side of the cam plate 38 to complete the seed clamping and unloading work, so that the seed taking device has the function of not clamping the seeds when the movable disc 36 is reversed.

[0073] Example 3: As shown in the attached Figure 23 、 24As shown, the finger-clamping sowing device includes a finger-clamping sowing disc and a duckbill hole former corresponding to the seed dropping hole 48. The duckbill hole former includes a bottom plate 76, a movable duckbill 77, a fixed duckbill 78, a positioning platform 81 and a return spring 82. A bottom plate 76 with a width the same as the belt width is fixedly installed on the outside of the belt corresponding to each seed dropping hole position. Fixed duckbill 78, hinge plate 83 and positioning platform 81 are fixed at intervals along the counterclockwise direction on the outside of the bottom plate 76. A sowing hole connected to the seed dropping hole is provided on the outside of the bottom plate 76 corresponding to the position between the hinge plate 83 and the fixed duckbill 78. A movable duckbill 77 is hingedly installed on the side of the hinge plate 83 away from the bottom plate 76. The movable duckbill 77 has a side wing 79 that forms a seed storage cavity with the fixed duckbill 78 and the hinge plate 83. A slag discharge trough 80 connected to the seed storage cavity is provided on the side of the hinge plate 83 close to the bottom plate 76. A return spring 82 is installed between the movable duckbill 77 and the positioning platform 81.

[0074] According to the needs, the duckbill hole former is an existing well-known technology. Two connecting through holes are arranged at intervals on the outside of the belt 37 corresponding to the positions on both sides of each seed hole 48. The fastening screws in the two connecting through holes on the front side fix the front of the seed guide shell 72, the front of the seed removal seat 1, the front of the belt 37 and the front of the bottom plate 76 together from the inside to the outside. The fastening screws in the two connecting through holes on the rear side fix the rear of the seed removal seat 1, the rear of the belt 37 and the rear of the bottom plate 76 together from the inside to the outside. The belt 37 can also be eliminated and the bottom plate 76 can be directly fixed on the seed removal seat 1. During use, such a setting can increase the applicable scope of sowing objects, replace the duckbill hole former according to different sowing requirements, and quickly assemble the finger-clamping seed taker, insert 44, seed guide shell 72, waist belt 37 and duckbill hole former according to different plant spacing requirements, thereby reducing the workload and difficulty of disassembly and assembly, and facilitating promotion among farmers. By setting up a slag discharge trough 80, it can avoid that the seeds in the seed storage cavity cannot be discharged in time and a large amount of seeds are squeezed when they accumulate, thereby reducing the failure rate and avoiding delays in production.

[0075] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A finger-clamping seed remover, characterized in that The cam is provided with a first rotation groove which opens upward and passes through from front to back, and a lower rotation groove which opens forward is provided on the front side of the lower part of the cam corresponding to the position below the upper rotation groove. The front side of the cam is provided with an arc-shaped rear mounting groove which is connected with the upper part of the upper rotating groove, and the lower part of the rear mounting groove is connected with the upper part of the lower rotating groove. The left and right front sides of the cam are provided with a left fixed groove which opens upward and a right fixed groove which opens upward, respectively. A tile cover which is fixedly installed on the right side in the right fixed groove is provided in the left fixed groove. There are spacings between the left side of the tile cover and the left side of the cam, as well as between the right side of the tile cover and the right side of the cam. The rear side of the middle of the tile cover is provided with an arc-shaped front mounting groove which corresponds to the rear mounting groove. The slot, the front mounting slot and the rear mounting slot can form a mounting hole with a circular cross-section, and a rotating shaft is rotatably installed in the mounting hole, and a first torsion spring is provided between the rotating shaft and the seed taking seat, and an "L"-shaped crank arm is fixedly installed on the rear end of the upper end of the rotating shaft, and a roller arranged radially along the upper side surface of the seed taking seat is rotatably installed on the upper right end of the crank arm, and a finger clamp body is fixedly installed on the lower end of the rotating shaft corresponding to the position below the tile cover, and the left part is located in front of the left part of the seed taking seat. The first seed clamping groove and the second seed clamping groove are provided in sequence from right to left on the rear side of the left end of the finger clamp body, and the first seed clamping groove and the second seed clamping groove are both opened backward, and the distance between the left end of the second seed clamping groove and the front side of the seed taking seat is greater than the distance between the right end of the second seed clamping groove and the front side of the seed taking seat, and the distance between the lower end of the second seed clamping groove and the front side of the seed taking seat is greater than the distance between the upper end of the second seed clamping groove and the front side of the seed taking seat.

2. The finger-clamping seed remover according to claim 1, characterized in that A connecting groove opening forward is provided on the front side of the lower part of the seed taking seat corresponding to the position below the finger clamp body, and the upper and lower walls of the connecting groove are both arc surfaces concentric with the upper side of the seed taking seat, and the left and right ends of the connecting groove extend to the left and right sides of the seed taking seat respectively. A first seed lowering groove opening forward and connected to the lower part of the connecting groove is provided on the lower side of the seed taking seat corresponding to the position below the left end of the finger clamp body; or / and, a V-shaped seed selection groove opening leftward and rightward is provided on the inner wall of the first seed clamping groove.

3. The finger-clamping seed remover according to claim 2, characterized in that A second seed lowering groove opening forward is provided on the front side of the seed taking seat corresponding to the position below the finger clamp body, and the lower part of the second seed lowering groove is communicated with the upper part of the connecting groove.

4. The finger-clamping seed remover according to claim 1, 2 or 3, characterized in that The rear side of the tile cover corresponding to the right position of the front mounting slot is provided with a closing limit surface that abuts against the front side of the right part of the crank arm, and the upper side of the rear part of the tile cover corresponding to the left position of the rotating shaft is provided with an opening limit surface that is inclined from left to right and from back to front, and the right part of the opening limit surface transitions tangently to the inner wall of the front mounting slot.

5. The finger-clamping seed remover according to claim 1, 2 or 3, characterized in that Positioning holes are provided on the rear side of the tile cover corresponding to the left and right positions of the rotating shaft, and a positioning column is installed in each positioning hole, the rear end of which is fixed to the corresponding position of the seed taking seat.

6. The finger-clamping seed remover according to claim 4, characterized in that Positioning holes are provided on the rear side of the tile cover corresponding to the left and right positions of the rotating shaft, and a positioning column is installed in each positioning hole, the rear end of which is fixed to the corresponding position of the seed taking seat.

7. A finger-clamping seeding tray using the finger-clamping seed remover according to any one of claims 1 to 6, characterized in that The cam plate is provided with a front and rear fixed surface, and a movable disk is provided on the outer side of the rear end of the central shaft in a sealed and rotatable manner. An inner sleeve is fixed at the center of the front end of the movable disk, which is coaxially sleeved on the outer side of the rear end of the central shaft. An outer sleeve is rotatably installed on the outer side of the inner sleeve. A core disk is fixed on the outer side of the front end of the outer sleeve. A fixed disk is fixed on the outer side of the front end of the central shaft corresponding to the front position of the core disk. A front and rear fixed ring platform is fixed on the rear end surface of the fixed disk close to the outer side. A side ring cover fixed to the outer side of the fixed disk is provided with a front retaining ring groove at the rear end of the side ring cover. A rear retaining ring groove is provided at the front end of the movable disk corresponding to the position of the front retaining ring groove. A waist belt is provided in the front retaining ring groove, and the waist belt has a circular upper edge. There are several radially penetrating seeding holes evenly distributed around the periphery, and a finger-clamping seed remover is fixedly installed on the inner side of the waist belt corresponding to each seeding hole position, and the seed removal seat of each finger-clamping seed remover is close to the front side of the roller and close to the rear end of the core disk. There are seed guide shells on the left and right sides of the connecting groove, which are spaced apart from the left and right sides of the seed removal seat. The seed guide shell corresponding to the front position of the rotating shaft has an outer guide groove opening upward, and the seed guide shell corresponding to the rear position of the rotating shaft has an inner guide groove opening downward. The inner wall of the outer guide groove located in front of the rotating shaft in the counterclockwise direction is provided with a seed guide channel connected with the inner guide groove and in a front-to-back direction, a seed baffle is fixed on the inner side of the outer guide groove corresponding to the right position of the seed guide channel, and a block arranged in front of the first lower seed groove is fixed on the outer side of the front of the seed guide shell corresponding to the front position of the first seed guide channel. There is an insert block between two adjacent finger-clamping seed takers, and overlapping blocks are fixed on the left and right sides of the upper part of the insert block. Each overlapping block is located in the gap between the corresponding tile cover and the seed taking seat, and the left and right sides of the lower part of the insert block are in contact with the left and right sides of the corresponding seed guide shell. The lower part of the insert block has an extended guide groove corresponding to the outer guide groove, and the left and right sides of the insert block corresponding to the lower position of the overlapping block are fit with the seed taking seat at the corresponding position. A fan-shaped cam plate is provided on the rear side of the lower part of the core disk corresponding to the position below the central axis, and a number of "T"-shaped adjustment grooves are evenly distributed on the inner annular surface of the cam plate along the circumference. An adjustment hole corresponding to the adjustment groove and connected to the rear end of the adjustment groove is provided on the rear side of the cam plate. An adjustment identification layer is provided on the rear side of the cam plate corresponding to the position of each adjustment hole. The rear side of the disk is provided with an adjusting screw hole, and each adjusting slot is provided with an adjusting bolt whose front end is screwed into the adjusting screw hole in the corresponding position. The rear side of the cam plate is provided with a discharging section, a first clamping section, a buffer section and a second clamping section in a clockwise direction. The distance between the rear side surface of the first clamping section and the front side surface of the cam plate is the same as the distance between the rear side surface of the second clamping section and the front side surface of the cam plate. The distance between the rear side surface of the first clamping section and the front side surface of the cam plate is smaller than the distance between the rear side surface of the discharging section and the front side surface of the cam plate. The distance between the rear side surface of the first clamping section and the front side surface of the cam plate is larger than the distance between the rear side surface of the buffer section and the front side surface of the cam plate. The minimum distance between the outer side of each roller and the front side surface of the cam plate is not greater than the distance between the rear side surface of the buffer section and the front side surface of the cam plate.The seed unloading section, the first seed clamping section, the buffer section and the second seed clamping section are smoothly connected together, and the seed unloading section has a climbing surface on the right side, and an inspection hole that passes through the front and back is provided on the rear side of the movable disc corresponding to the position of the cam plate, and an inspection cover is detachably fixedly installed on the rear side of the movable disc corresponding to the position of the inspection hole, and an arc-shaped baffle opening to the left is fixedly installed on the rear side of the fixed disc corresponding to the right position of the central axis, and a seed-blocking brush that is detachably fixedly installed at the front end and the lower part of the fixed disc is provided between the left end of the baffle corresponding to the position below the central axis and the inner side of the fixed ring platform, and a seed-blocking brush that is detachably fixedly installed at the front end and the lower part of the fixed disc is provided, and a seed-storing cavity is formed on the rear side of the fixed disc, the inner side of the fixed ring platform, the front side of the core disc, the inner side of the baffle, the left side of the seed-blocking brush, the front side of the corresponding seed-taking seat and the front side of the corresponding insert. The outer side of the baffle and the fixed ring A seed unloading channel is formed between the inner sides of the platforms, and a seed hole communicating with the seed unloading channel is provided on the outer side of the lower part of the fixed ring platform corresponding to the right position of the seed-blocking brush. A fan-shaped inspection hole is provided on the front side of the upper part of the fixed plate corresponding to the position above the center axis, and an observation cover is provided on the front side of the fixed plate corresponding to the inspection hole position. Left and right clamping bolts that can compress the observation cover are provided at intervals on the left and right sides of the upper part of the fixed plate, and a seed cleaning brush is fixedly installed on the rear side of the middle part of the observation cover. A limiting mounting hole that passes through the front and back is provided on the front side of the right part of the fixed plate corresponding to the right position of the center axis, and a seed entry hole that communicates inside and outside is provided on the front side of the left part of the fixed plate corresponding to the lower left position of the center axis. A seed entry tube is detachably fixedly installed on the front side of the fixed plate corresponding to the seed entry hole position.

8. The finger-clamping seeding tray according to claim 7, characterized in that There are four adjusting screw holes evenly spaced along the circumference on the rear side of the core disk, and the two adjusting screw holes on the left and the two adjusting screw holes on the right are symmetrically distributed on the left and right; or / and, a seed cleaner is fixedly installed on the rear side of the fixed disk corresponding to the left position of the left tightening bolt, and the rear part of the seed cleaner and the rear part of the seed cleaning brush are both inclined with the front lower and the rear part higher, and the rear end of the seed cleaner and the rear end of the seed cleaning brush can be close to the rear side of the finger clamp body.

9. The finger-clamping seeding disc according to claim 7 or 8, characterized in that A seed cleaning hole is provided on the front side of the lower part of the fixed plate corresponding to the left position of the seed-blocking brush, and a first connecting boss is fixed on the front side of the fixed plate corresponding to the position of the seed-cleaning hole, and a seed cleaning door is rotatably installed on the front side of the left part of the first connecting boss, and a latch is provided between the seed cleaning door and the right part of the first connecting boss, and a second connecting boss is fixed to the seed-inlet tube at the front side of the fixed plate corresponding to the position of the seed-in hole; and / or, a ring groove with an opening forward is provided at the front end of the core plate, and a limiting block is fixed in the ring groove corresponding to the position above the center axis, and two hinged plates are fixedly installed at intervals on the front side of the fixed plate corresponding to the right position of the center axis, and each hinged plate has A first hinge through hole is provided, and a front limit hole is provided on the front side of the fixed plate corresponding to the right side position of the limit block, and a pawl is installed in the front limit hole, the rear end of which is located in the annular groove and the left end is in contact with the right end of the limit block. After the front end of the pawl passes through the front limit hole, it is fixedly installed with the left end of the hinge arm arranged between the hinge plates. A second hinge through hole corresponding to the first hinge through hole is provided at the right end of the hinge arm. The right end of the hinge arm is hingedly connected together by a mounting bolt which is screwed with a mounting nut and passes through the first hinge through hole and the second hinge through hole in sequence through a screw rod. The mounting bolt is provided with a second torsion spring that makes the rear end of the pawl resist against the inner wall of the rear of the annular groove.

10. A finger-clamping sowing device using the finger-clamping sowing disc according to any one of claims 7 to 9, characterized in that It includes a finger-clamping seeding plate and a duckbill hole former corresponding to the seeding hole. The duckbill hole former includes a base plate, a movable duckbill, a fixed duckbill, a positioning platform and a reset spring. A base plate with the same width as the belt is fixedly installed on the outside of the belt corresponding to each seeding hole position. Fixed duckbill, hinge plate and positioning platform are fixed at intervals along the counterclockwise direction on the outside of the base plate. A seeding hole connected with the seeding hole is provided on the outside of the base plate corresponding to the position between the hinge plate and the fixed duckbill. A movable duckbill is hingedly installed on the side of the hinge plate away from the base plate. The movable duckbill has side wings that form a seed storage cavity with the fixed duckbill and the hinge plate. A slag discharge trough connected with the seed storage cavity is provided on the side of the hinge plate close to the base plate. A reset spring is installed between the movable duckbill and the positioning platform.

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