Two-dimensional vibration type rice precision seedling raising and sowing device and sowing method

Abstract

The invention relates to the technical field of rice seedling raising and sowing, and specifically discloses a two-dimensional vibration type rice seedling raising and sowing device and a sowing method, comprising a bracket, a seed supply component and a sowing mechanism, the sowing mechanism comprising a sowing plate mounting frame rotatably connected to the bracket, the bracket is provided with a lifting and lowering cylinder for driving the sowing plate mounting frame to adjust the inclination, the sowing plate mounting frame is provided with a sowing plate assembly, the bracket and the sowing plate mounting frame are respectively provided with a transverse vibration component and a longitudinal vibration component for realizing the vibrating of the sowing plate assembly in the transverse and longitudinal directions, the sowing plate assembly comprises a sowing plate seat, a sowing plate frame and a sowing plate; the two-dimensional vibration type rice seedling raising and sowing device disclosed by the invention realizes the precise rice seedling raising and sowing with precise fixed distance and hole formation, and furthermore, the seed filling slot can controllably adjust the rice seed filling amount, and can adapt to the precise filling of rice seeds of different lengths, and has a wider scope of application.

Description

Technical Field

[0001] The invention relates to the technical field of rice seedling raising, and specifically discloses a two-dimensional vibration type rice seedling raising and sowing device and a sowing method. Background Art

[0002] The existing rice seedling raising and sowing devices mainly include three types: mechanical, pneumatic and vibration. Among them, the mechanical rice seedling raising and sowing devices include groove wheel type and socket wheel type. The groove wheel type mainly sows rice seedlings in the form of broadcasting, that is, randomly broadcasting rice seeds on the seedling tray, which cannot achieve the sowing effect of precise fixed-distance holes, uses a large amount of seeds, and wastes seeds; although the socket wheel type can quantitatively fill seeds and arrange seeds in fixed-distance holes through evenly distributed sockets, it is difficult to accurately fill the sockets due to the slenderness of rice seeds, which easily causes too many or too few rice seeds in one hole. Although the pneumatic sowing device can achieve precise fixed-distance hole sowing, the pneumatic system of the sowing device is complex, and the suction holes are prone to clogging. The existing vibration-type seeding and sowing device mainly uses a vibrating disk with a V-shaped groove, which can only achieve row-type seeding and sowing.

[0003] For example, the invention patent with application number 2022106391022 discloses a linear seeding device for a rice seedling raising assembly line, including a seeding device body, a handle fixedly installed on the rear surface of the seeding device body, a linear part arranged at the bottom of the seeding device body, a through shaft passing through the interior of the seeding device body, walking paddle wheels fixedly installed on the left and right ends of the through shaft, a seed separation mechanism arranged above the through shaft and inside the seeding device body, an expansion device arranged on the outer surface of the through shaft, and an anti-blocking part arranged inside the seeding device body. The linear seeding device for a rice seedling raising assembly line disclosed in the patent is essentially a vibrating seedling raising and sowing device using a V-groove vibrating disk. When raising and sowing rice seedlings, it is limited by the design of the V-groove vibrating disk, and can only realize strip-type seeding and sowing, and cannot achieve the sowing effect of precise fixed-distance hole formation. Therefore, in response to the technical deficiencies of existing mechanical, pneumatic and vibrating rice seedling raising and sowing devices, the present application proposes a newly designed two-dimensional vibrating rice seedling raising and sowing device to ensure that the technical problems existing in existing mechanical, pneumatic and vibrating rice seedling raising and sowing devices are avoided while achieving the effect of precise and fixed-distance hole sowing. Summary of the invention

[0004] The purpose of the present invention is to address the current lack of accurate rice seedling raising and sowing devices with precise measurement and spacing to form holes. A sowing tray with bidirectional and two-dimensional vibration is used for rice seedling raising and sowing, so as to achieve the rice seedling raising and sowing effect with precise measurement and spacing to form holes.

[0005] The present invention is achieved through the following technical solutions:

[0006] A two-dimensional vibration type rice seedling precision sowing device comprises a support, a seed supply assembly and a sowing mechanism, wherein the seed supply assembly is arranged on the support, and the sowing mechanism is arranged below the seed supply assembly, and the sowing mechanism comprises a sowing disc mounting frame rotatably connected to the support, and a lifting and lowering cylinder for driving the sowing disc mounting frame to adjust the tilt is arranged on the support, and a sowing disc assembly is arranged on the sowing disc mounting frame, and a transverse vibration assembly and a longitudinal vibration assembly are respectively connected to the sowing disc assembly to realize the transverse and longitudinal vibration of the sowing disc assembly;

[0007] The sowing plate assembly includes a sowing plate seat, a sowing plate frame and a sowing plate, the sowing plate seat is a square box with three side edges, and one end inclined downward is designed with a missing edge, a first through hole is opened on the bottom plate of the sowing plate seat and a first magnetic sheet is provided, the sowing plate frame is fixedly connected to the lower surface of the sowing plate seat and a rectangular through hole slide groove is opened in the middle, the sowing plate is inserted in the rectangular through hole slide groove, and a sowing cylinder for realizing the lateral movement of the sowing plate is arranged on the sowing plate mounting frame, a second through hole corresponding to the first through hole and having the same size and size is opened on the sowing plate, and a second magnetic sheet that fits and adsorbs with the first magnetic sheet is provided on the sowing plate.

[0008] Before the two-dimensional vibration type precision rice seedling raising and sowing device disclosed in the present invention is operated, there is a certain distance between the sowing cylinder and the sowing plate. The sowing plate is adsorbed by the second magnetic sheet and the first magnetic sheet on the sowing disc seat or the third magnetic sheet on the hole depth adjustment plate, so that the second through hole is misaligned with the first through hole or the fourth through hole, so that the first through hole forms a seed filling slot with a sealed bottom.

[0009] When the sowing mechanism is in a horizontal state, the seed supply component evenly spreads a certain amount of rice seeds on the non-through-hole portion of the sowing disc seat on the upper surface of the sowing mechanism away from the missing edge. After the seed supply is completed, the sowing mechanism is adjusted to an inclined state as a whole by the lifting and lowering cylinder, and then the sowing disc assembly is driven by the longitudinal vibration component to vibrate in one dimension along the inclined direction, so that the rice seeds slide and roll randomly on its surface, thereby filling into the first through hole; after the one-dimensional vibration in the inclined direction runs for a certain period of time, the transverse vibration component is started at the same time, so that the sowing disc assembly has reciprocating vibrations in two directions, the inclined direction and perpendicular to the inclined direction, thereby accelerating the effective filling of the first through hole that is not filled with seeds with rice seeds, and accelerating the movement of the rice seeds on the sowing disc surface out of the disc surface where the first through holes are distributed. The first through holes that are filled with too much seeds can clear the excess rice seeds on the surface under the transverse vibration. When all the first through holes are filled with rice seeds, the transverse vibration of the sowing disc assembly stops, and the remaining rice seeds move downward under the longitudinal vibration of the sowing disc assembly and fall into the seed collecting box for collection.

[0010] When the sowing mechanism is filled with seeds, it is laid flat under the action of the lifting cylinder. After the seeding tray with the matrix soil is moved to the bottom of the sowing component, the sowing cylinder is controlled to operate. Under the action of the sowing cylinder, the second through hole on the sowing plate is aligned with the first through hole or the fourth through hole. At this time, the rice seeds filled in the through holes can fall into the seeding tray by their own gravity, completing the sowing process. At this time, the seed supply component synchronously supplies seeds to the sowing mechanism.

[0011] As a further configuration of the above scheme, the first through hole is in the shape of an oblong circle, and the length direction of the first through hole is perpendicular to the missing edge of the seeding tray seat. The design of the first through hole in the shape of an oblong circle is based on the shape of the rice seeds, and the arrangement of the length direction of the first through hole perpendicular to the missing edge of the seeding tray seat is based on the movement law of the rice seed group under a vibrating state, so that the rice seeds can be placed flat in the first through hole.

[0012] As a further configuration of the above scheme, the seeding tray assembly also includes a seeding adjustment plate, a third through hole aligned with the first through hole is provided on the seeding adjustment plate, the third through hole is in the shape of an oblong circle, and the hole edge at the upper end of the third through hole is provided with an oblique chamfer, the lower end is butted with the first through hole, the lower end of the third through hole is provided with a convex tile extending into the first through hole and having the same thickness as the bottom plate of the seeding tray seat, and an adjustable fastening connection mechanism is provided between the seeding adjustment plate and the seeding tray seat. The design of the seeding adjustment plate can not only allow the rice seeds to be quickly filled therein through the effect of the oblique chamfer at the upper end of the third through hole, but also when used for different types of rice seeds, the position of the seeding adjustment plate can be adjusted, and then the effective length of the overall seed filling slot can be adjusted under the action of the convex tile to meet the precise filling of rice seeds of various lengths.

[0013] As a further configuration of the above scheme, the adjustable fastening connection mechanism includes a fastening connection member arranged on the bottom plate of the seeding disc seat, and the seeding adjustment plate is provided with a long waist-shaped adjustment hole parallel to the length direction of the third through hole, and the fastening connection member is inserted into the long waist-shaped adjustment hole for fastening. The above is one of the specific adjustment and fixing methods of the seeding adjustment plate. When the position of the seeding adjustment plate needs to be adjusted, the fastening connection member is first loosened, and then the position is adjusted, and then it is fastened after the adjustment is completed.

[0014] As a further configuration of the above scheme, the seeding plate assembly further includes a hole depth adjustment plate, the hole depth adjustment plate is fixedly arranged between the seeding plate seat and the seeding plate frame, a fourth through hole aligned with the first through hole and having the same size and size is provided on the hole depth adjustment plate, and a third magnetic sheet is provided on the hole depth adjustment plate, the upper and lower ends of which are respectively adsorbed by the first magnetic sheet and the second magnetic sheet. The design of the hole depth adjustment plate can increase or decrease the number of layers or thickness of the hole depth adjustment plate according to the requirements of different hole sowing amounts, so that the depth of the entire seed filling slot hole can be adjusted, thereby achieving the effect of adjusting the seed filling amount.

[0015] As a further configuration of the above scheme, the lateral vibration assembly and the longitudinal vibration assembly both include a driving motor, a vibrating eccentric disc and a connecting rod. The vibrating eccentric disc is connected to the driving motor, and the two ends of the connecting rod are respectively rotatably connected to the vibrating eccentric disc, the seeding disc assembly or the seeding disc mounting frame.

[0016] As a further configuration of the above scheme, the seed tray mounting frame includes a lower rotating frame rotatably connected to the front end of the bracket, the telescopic end of the lifting cylinder is connected to the rear end of the lower rotating frame, and an upper sliding frame is arranged at the upper end of the lower rotating frame for horizontal sliding, and the seed tray assembly is arranged on the upper sliding frame for longitudinal sliding.

[0017] As a further configuration of the above solution, the lower rotating frame is provided with a transverse slide rail interacting with the upper sliding frame, and the upper sliding frame is provided with a longitudinal slide rail interacting with the seeding plate assembly.

[0018] As a further configuration of the above scheme, the seed supply assembly includes a seed box and a groove wheel, the groove wheel is arranged at the lower end of the seed box, and the groove wheel is driven to rotate by the seed supply motor.

[0019] As a further configuration of the above scheme, a seed collecting box is provided at the lower end of the side where the seeding disc seat has a missing edge.

[0020] The present invention also discloses a sowing method using the two-dimensional vibration type rice precision seedling raising and sowing device, which comprises the following steps:

[0021] S1: when the sowing mechanism is horizontal, the seed supply assembly is started, and the seed supply assembly discharges a certain amount of rice seeds into the sowing mechanism away from the missing edge of the sowing disc seat at the side where there is no first through hole;

[0022] S2: After the seed supply is completed, the sowing mechanism is lifted by the lifting cylinder to an angle of 7.5°~12.5° with the horizontal plane;

[0023] S3: After the inclination angle of the sowing mechanism is fixed, the longitudinal vibration component is started, so that the sowing disc component performs longitudinal vibration with a frequency of 4 Hz to 5 Hz and an amplitude of 15 mm to 17 mm, so that the rice seeds are filled into the first through hole;

[0024] S4: After the seeding tray assembly vibrates longitudinally for a period of time, the transverse vibration assembly is started. Under the action of the transverse vibration assembly, the seeding tray assembly is further vibrated transversely with a frequency between 4 Hz and 6 Hz and an amplitude between 15 mm and 21 mm, so as to accelerate the rapid filling of the first through holes that are not filled with seeds, and the first through holes that are filled with too much seeds are cleared out of the excess rice seeds. After all the first through holes are filled with rice seeds, the transverse vibration is stopped, and the remaining rice seeds are discharged from the seeding tray assembly under the action of the longitudinal vibration and the longitudinal vibration is stopped;

[0025] S4: The sowing mechanism is laid flat by the lifting cylinder. When the seeding tray moves to the bottom of the sowing mechanism, the sowing plate is pushed by the sowing cylinder to open the lower end of the first through hole, so that the filled rice seeds fall into the seeding tray under their own gravity to complete the sowing process.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] The two-dimensional vibration type precision rice seedling raising and sowing device and sowing method disclosed in the present invention realizes the precision rice seedling raising and sowing with precise quantity and fixed distance in holes, and can effectively improve the filling speed and filling effect of rice seeds in the process of moving along the upper surface of the sowing plate component through the two-dimensional vibration in the longitudinal and lateral directions, reduce the phenomenon of excessive filling of through holes, and speed up the time for rice seeds to move out of the sowing plate surface, which not only reduces the filling time, but also improves the effect and efficiency of precision rice seedling raising and sowing.

[0028] The seeding plate assembly of the present invention adopts a specially designed overlapping structure, and cooperates with the alignment and penetration of multiple groups of through holes to form a seed filling slot for precise seed filling. In addition, combined with the design of the seed feeding adjustment plate and the hole depth adjustment plate, not only can the seed filling slot adjust the seed filling amount of rice seeds in a controllable manner, but it can also adapt to the precise filling of rice seeds of different lengths, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the side plan structure of the present invention;

[0033] Figure 4 It is a three-dimensional structural schematic diagram of the seeding tray assembly in the present invention;

[0034] Figure 5 It is a three-dimensional exploded view of the seeding tray assembly of the present invention;

[0035] Figure 6 It is a partial cross-sectional structural schematic diagram of the seeding tray assembly in the present invention;

[0036] Figure 7 It is a three-dimensional structural schematic diagram of the seeding tray seat in the present invention;

[0037] Figure 8 It is a three-dimensional structural schematic diagram of the seeding plate frame in the present invention;

[0038] Fig. 9 It is a three-dimensional structural schematic diagram of the seeding plate in the present invention;

[0039] Fig.10 It is a schematic diagram of the three-dimensional structure of the adjustment plate in the present invention;

[0040] Fig.11 For the present invention Fig.10 The enlarged schematic diagram of point B in the middle;

[0041] Fig.12 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0042] Fig.13 It is a schematic diagram of the three-dimensional structure of the hole depth adjustment plate of the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 13 , and describes the application in detail with reference to embodiments. Example 1

[0045] Embodiment 1 discloses a two-dimensional vibration type rice seedling precision sowing device, refer to the attached Figures 1 to 3 The main part of the device includes a seed supply component 1, a sowing mechanism 2, a seed collection box 3, a bracket 4, a movable hinge 5, a lifting cylinder 6 and a sowing cylinder 7. Among them, the front end of the sowing mechanism 2 is rotatably connected to the bracket 4 through a movable hinge 5, and because the movable hinge 5 has a certain movable space in the axial direction, the entire sowing mechanism 2 can have sufficient vibration space in the lateral direction under the premise of being able to rotate and adjust. The lifting cylinder 6 is arranged on the bracket 4 below the sowing mechanism 2, and the piston rod end of the lifting cylinder 6 is connected to the lower end of the rear side of the sowing mechanism 2 through a rotating connector, so that the lifting cylinder 6 can drive the entire sowing mechanism 2 to tilt at a certain angle, and the appropriate vibration seed filling tilt angle of the sowing mechanism 2 is controlled between 7.5° and 12.5°.

[0046] The seed supply assembly 1 is fixedly arranged at the upper end of the bracket 4, and the end of the sowing mechanism 2 connected to the lifting cylinder 6 is arranged below the seed supply assembly 1. The seed supply assembly 1 adopts the conventional seed box + groove wheel form, and the groove wheel is arranged at the lower end of the seed box, and the seed supply motor drives the groove wheel to rotate a certain angle each time, so that the rice seeds in the seed box are quantitatively discharged to the sowing assembly 2. The seed collection box 3 is arranged below the hinge between the sowing mechanism 2 and the bracket 4, and the upper end of the seed collection box 3 is opened, so that the excess rice seeds sliding off the sowing mechanism 2 can fall into the seed collection box 3 for recovery.

[0047] The key design of this embodiment 1 is the structural design of the sowing mechanism 2, which includes a sowing disc assembly 200, a sowing disc mounting frame 201, a lateral vibration assembly 202 and a longitudinal vibration assembly 203. The sowing disc mounting frame 201 includes a lower rotating frame 2011 and an upper sliding frame 2012. The lower rotating frame 2011 is rotatably connected to the front end of the bracket 4 through a movable hinge 5, and the rear end of the lower rotating frame 2011 is connected to the lifting cylinder 6. The sowing disc mounting frame 201 is driven to rotate by the lifting cylinder 6 to achieve the adjustment of the tilt angle of the entire sowing mechanism 2. A pair of front and rear lateral slide rails 205 are provided on the lower rotating frame 2011, and the upper sliding frame 2012 is slidably arranged on the lateral slide rails 205, and then the lateral vibration assembly 202 is connected to the side end of the upper sliding frame 2012, and the lateral reciprocating vibration of the upper sliding frame 2012 is achieved through the lateral vibration assembly 202.

[0048] A pair of longitudinal slide rails 204 are respectively arranged at the left and right ends of the upper sliding frame 2012, and then the seeding plate assembly 200 is slidably arranged on the two longitudinal slide rails 204, and the longitudinal vibration assembly 203 is arranged at the rear end of the upper sliding frame 2012, and the longitudinal vibration assembly 203 is connected to the seeding plate assembly 200 at the same time, so that the seeding plate assembly 200 can realize the reciprocating vibration in the longitudinal direction under the action of the longitudinal vibration assembly 203.

[0049] In this embodiment 1, the transverse vibration component 202 and the longitudinal vibration component 203 have the same structure, and are both composed of a driving motor, a vibrating eccentric disc and a connecting rod. The vibrating eccentric disc is connected to the motor shaft of the driving motor, and the two ends of the connecting rod are respectively rotatably connected to the vibrating eccentric disc, the seeding disc mounting frame 201 or the seeding disc assembly 200, wherein the connecting rod in the transverse vibration component 202 is connected to the upper sliding frame 2012, so that the above two groups of vibration components can make the seeding disc assembly 200 as a whole perform a small reciprocating motion in the transverse or longitudinal direction under the drive of the driving motor, thereby achieving a vibration seed filling effect, and the longitudinal vibration frequency of the seeding disc assembly 200 is controlled to be between 4 Hz and 5 Hz, and the amplitude is between 15 mm and 17 mm, and the transverse vibration frequency is between 4 Hz and 6 Hz, and the amplitude is between 15-21 mm, so that it can achieve a good vibration seed filling effect according to the characteristics of rice seed vibration seed filling.

[0050] Reference Figures 4 to 9 The seeding plate assembly 200 includes a seeding plate seat 2a, a seeding plate frame 2b and a seeding plate 2c. The seeding plate seat 2a is a square box with three side edges, and one end of the seeding plate seat 2a near the movable hinge 5 is designed with a missing edge. First through holes 2a1 are evenly opened on the bottom plate of the seeding plate seat 2a according to the seeding hole spacing requirements. The first through holes 2a1 are designed in a long waisted round shape, and the length direction is perpendicular to the missing edge of the seeding plate seat 2a. At the same time, first magnetic sheets 2a2 with the same thickness as the bottom plate are evenly arranged on the bottom plate of the seeding plate seat 2a.

[0051] The sowing plate frame 2b is fixedly connected to the lower surface of the sowing disc seat 2a by bolts or screws, and a rectangular through-hole chute 2b1 is provided on the sowing plate frame 2b, and the first through-holes 2a1 on the sowing disc seat 2a are all located in the rectangular through-hole chute 2b1. Then the sowing plate 2c is movably inserted into the sowing plate frame 2b, and the upper surface of the sowing plate 2c is fitted with the lower surface of the sowing disc seat 2a. A second through-hole 2c1 is provided on the sowing plate 2c, and the second through-hole 2c1 corresponds to the first through-hole 2a1 on the sowing disc seat 2a one-to-one, and the shape and size of the second through-hole 2c1 are the same as those of the first through-hole 2a1. A second magnetic sheet 2c2 is also provided on the sowing plate 2c, and the second magnetic sheet 2c2 can be fixed to the first magnetic sheet 2a2 by magnetic attraction. Before sowing, the sowing plate 2c inserted into the sowing plate frame 2b can be fixed by precise alignment between the second magnetic sheet 2c2 and the first magnetic sheet 2a2 and the effect of magnetic attraction, and the second through hole 2c1 and the first through hole 2a1 are offset from each other, so that the bottom of the first through hole 2a1 is blocked, forming an oblong seed filling groove for filling rice seeds.

[0052] Finally, a sowing cylinder 7 is also provided on the upper sliding frame 2012, and the telescopic end of the sowing cylinder 7 is close to the outer end of the sowing plate 2c extending out of the sowing plate frame 2b, but there is a gap, so that the vibration of the sowing mechanism 2 is not affected by the sowing cylinder 7. When sowing is required, the sowing cylinder 7 is started to push the sowing plate 2c horizontally until the second through hole 2c1 on the sowing plate 2c is fully aligned with the first through hole 2a1, at which time the rice seeds in the first through hole 2a1 can directly fall through the second through hole 2c1 and the rectangular through hole chute 2b1, and accurately fall into the hole of the seedling tray below, and after sowing is completed, the sowing cylinder 7 retracts, and at this time the sowing plate automatically resets under the action of the magnetic attraction, so that the second through hole 2c1 is misaligned with the first through hole 2a1, and the bottom of the first through hole 2a1 is blocked again. Example 2

[0053] Example 2 discloses a two-dimensional vibration type precision rice seedling raising and sowing device which is further optimized and improved based on the technical solution in Example 1. The similarities between the device and Example 1 are not described again, and the difference lies in the structural design of the sowing tray assembly 200.

[0054] Reference Figure 4 , Attachment Figure 5 , Attachment Fig. 9 , Attachment Fig.10 and attached Fig.11, the present embodiment 2 includes a seeding disc seat 2a, a seeding plate frame 2b, a seeding plate 2c and a seeding adjustment plate 2d, wherein the design of the seeding disc seat 2a, the seeding plate frame 2b and the seeding plate 2c is the same as that of the embodiment 1, and no further description is given. The seeding adjustment plate 2d in the present embodiment 2 is arranged on the upper surface of the bottom plate of the seeding disc seat 2a, and a third through hole 2d1 aligned with each first through hole 2a1 is provided on the seeding adjustment plate 2d. The third through hole 2d1 is also designed in an oblong shape, and at the same time, a bevel chamfer 2d2 is provided at the upper end hole edge of the third through hole 2d1, and its lower end is similar to and butted with the first through hole 2a1. A convex tile 2d3 is provided at the lower end of each third through hole 2d1, so that the convex tile 2d3 can extend into one end of the length direction of the first through hole 2a1, and at the same time, the extension of the convex tile 2d3 is consistent with the thickness of the bottom plate of the seeding disc seat 2a.

[0055] Finally, a long waist-shaped adjustment hole 2d4 is provided on the seed-in adjustment plate 2d, and the length direction of the long waist-shaped adjustment hole 2d4 is consistent with the length direction of the third through hole 2d1, and a connecting fastener (not shown in the figure) extending into the long waist-shaped adjustment hole 2d4 is provided on the bottom plate of the sowing disk seat 2a. When the seed-in adjustment plate 2d is installed in the sowing disk seat 2a and the position of the convex tile 2d3 in the first through hole 2a1 is adjusted, the two can be fixed together by fastening the connecting piece. At this time, the position of the convex tile 2d3 extending into the first through hole 2a1 can determine the actual effective filling length of the first through hole 2a1, thereby achieving accurate filling of rice seeds of different lengths. Example 3

[0056] Example 3 discloses a two-dimensional vibration type rice precision seedling raising and sowing device which is further optimized and improved based on the technical solution in Example 2. The similarities between the device and Example 2 are not described again, and the difference lies in the structural design of the sowing tray assembly 200.

[0057] Reference Figure 5 and attached Fig.12 The third embodiment includes a seeding disc seat 2a, a seeding plate frame 2b, a seeding plate 2c, a seeding adjustment plate 2d and a hole depth adjustment plate 2e, wherein the design of the seeding disc seat 2a, the seeding plate frame 2b, the seeding plate 2c and the seeding adjustment plate 2d is the same as that of the second embodiment, and no further description is given. The hole depth adjustment plate 2e in the third embodiment is arranged between the seeding disc seat 2a and the seeding plate frame 2b, and after the seeding plate 2c is inserted into the seeding plate frame 2b, its upper surface is in contact with the lower surface of the hole depth adjustment plate 2e.

[0058] The hole depth adjustment plate 2e is provided with fourth through holes 2e1 aligned with the first through holes 2a1 on the bottom plate of the seeding disc seat 2a one by one, and the shape and size of the fourth through holes 2e1 are the same as those of the first through holes 2a1. The hole depth adjustment plate 2e is provided with a third magnetic sheet 2e2, and the upper surface of the third magnetic sheet 2e2 is mutually adsorbed with the first magnetic sheet 2a2 on the seeding disc seat 2a, and the lower surface of the third magnetic sheet 2e2 is mutually adsorbed with the second magnetic sheet 2c2 on the seeding plate 2c. After the hole depth adjustment plate 2e is assembled, the seeding disc seat 2a, the seeding plate frame 2b and the hole depth adjustment plate 2e are fixedly connected as a whole by bolts or screws. When it is necessary to adjust the seeding amount of the seeding hole, the hole depth adjustment plates 2e of different thicknesses can be replaced or different numbers of hole depth adjustment plates 2e can be provided between the seeding disc seat 2a and the seeding plate frame 2b to achieve the effect of adjusting the depth of the entire seed filling slot hole, thereby achieving the effect of accurately adjusting the seeding amount of the seeding hole.

[0059] When the two-dimensional vibration type rice seedling precision sowing device disclosed in this embodiment 3 is used, the rice seeds are first loaded into the seed supply component 1. After the preparation work is completed, when the sowing mechanism is in a horizontal state, the seed supply component 1 is started to discharge a certain amount of rice seeds into the sowing mechanism away from the sowing disc seat without the first through hole. After the seed supply is completed, the lifting and lowering cylinder 6 is started to extend it, and under the action of the lifting and lowering cylinder 6, the entire sowing mechanism 2 is lifted to an angle of 7.5° to 12.5° relative to the horizontal plane.

[0060] After the inclination angle of the sowing mechanism 2 is fixed, the longitudinal vibration component 203 is started. The longitudinal vibration component causes the sowing plate component 200 to vibrate longitudinally with an amplitude between 15 mm and 17 mm and a frequency between 4 Hz and 5 Hz, so that the rice seeds randomly slide and roll on the upper surface of the sowing plate component 200, and are filled into the seed filling hole (i.e., the first through hole) formed on the sowing plate component 200.

[0061] After the longitudinal vibration runs for a certain period of time, the transverse vibration component is started and the longitudinal vibration is kept unchanged. Under the action of the transverse vibration component, the seeding disc component 200 will add another transverse vibration with a vibration frequency between 4 Hz and 6 Hz and an amplitude between 15 mm and 21 mm, so that the seeding disc component has reciprocating vibrations in two directions, the inclined direction and perpendicular to the inclined direction, thereby accelerating the effective filling of rice seeds in the seeding holes that have not been filled with seeds, and accelerating the movement of rice seeds on the seeding disc surface out of the disc surface with the first through holes. At the same time, the seeding holes that are filled with too much seeds will clear out the excess rice seeds on the surface under the action of the transverse vibration, achieving the effect of precise seed filling. When all the seeding holes are filled with rice seeds, the transverse vibration of the seeding disc component 200 is stopped, and the remaining rice seeds move downward under the action of the longitudinal vibration and fall into the seed collecting box for collection, and then the longitudinal vibration of the seeding disc component is stopped.

[0062] Finally, the lifting cylinder 6 is controlled to retract, and the sowing mechanism 2 is laid flat under the action of the lifting cylinder. After the seeding tray with the matrix soil is moved to the bottom of the sowing tray assembly 200, the sowing cylinder is controlled to extend and push the sowing plate 2c to move a certain distance, so as to open the lower end of the seed filling hole. At this time, the filled rice seeds can fall into the seeding tray by their own gravity, completing the sowing process.

[0063] In addition, in order to verify the seed filling effect of the two-dimensional vibration type rice precision seedling raising and sowing device disclosed in this embodiment 3 compared with the one-dimensional unidirectional vibration, the following comparative experiment was carried out.

[0064] Among them, the inclination angle of the seeding disc of the seeding mechanism is set to 10°, and the length, width and thickness of the long waist-shaped through hole are 10.5 mm, 3.5 mm and 4.5 mm respectively. Under the one-dimensional unidirectional vibration condition, that is, the longitudinal vibration amplitude is 17 mm, the vibration frequency is 5 Hz, and the vibration condition duration is 5 s, which is used as the control group. The two-dimensional vibration adds lateral vibration on the basis of one-dimensional vibration, that is, there is longitudinal and lateral bidirectional two-dimensional vibration in a certain vibration seeding period. On the basis of the one-dimensional longitudinal vibration remaining unchanged, the lateral vibration amplitude is increased by 15 mm, the increase time is 2.2 s to 3.4 s, the vibration condition duration is 5s, and the vibration frequency is set to 4, 5, and 6 Hz respectively. Each group of experiments is repeated 3 times and the average value is taken. The seeding effect after 5 seconds is shown in Table 1.

[0065] Table 1

[0066]

[0067] Note: 1-3 rice seeds in one through hole are qualified; 0 rice seeds in one through hole are missed; more than 3 rice seeds in one through hole are re-seeded; the seed filling time is the time from the start of vibration to the absence of rice seeds on the disk surface of the through hole area of ​​the sowing mechanism.

[0068] It can be seen from the data in Table 1 that compared with the control group, the seed filling effect of Example 3 is improved, the qualified rate is increased by at least 1.47%, the reseeding rate is reduced by 1.15%, the missed seeding rate is reduced by at least 0.31%, and the seed filling time is shortened by at least 0.68s. It can be seen that on the basis of keeping the one-dimensional longitudinal vibration unchanged, adding the lateral vibration with specific vibration characteristics for a period of time is conducive to improving the seed filling effect of the through hole, reducing or avoiding the phenomenon of excessive seed filling, and shortening the seed filling time, thereby improving the seed filling efficiency.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-dimensional vibration rice seedling precision sowing device, comprising a bracket, a seed supply component and a sowing mechanism, wherein the seed supply component is arranged on the bracket, and the sowing mechanism is arranged below the seed supply component, characterized in that: The sowing mechanism includes a sowing disc mounting frame rotatably connected to the bracket, and the bracket is provided with a lifting and lowering cylinder for driving the sowing disc mounting frame to tilt and adjust before vibrating and filling seeds, and the sowing disc mounting frame is provided with a sowing disc assembly, and the sowing disc assembly is respectively connected with a longitudinal vibration assembly and a transverse vibration assembly for realizing longitudinal vibration first and additional transverse vibration during vibrating and filling seeds; The seeding plate assembly comprises a seeding plate seat, a seeding plate frame and a seeding plate, the seeding plate seat is a square box with three side edges, and one end inclined downward is designed with a missing edge, a first through hole is opened on the bottom plate of the seeding plate seat and a first magnetic sheet is arranged, the seeding plate frame is fixedly connected to the lower surface of the seeding plate seat and a rectangular through hole slide is opened in the middle, the seeding plate is inserted in the rectangular through hole slide, and a seeding cylinder for realizing the lateral movement of the seeding plate is arranged on the seeding plate mounting frame, a second through hole corresponding to the first through hole and having the same size and size is opened on the seeding plate, and a second magnetic sheet that fits and adsorbs with the first magnetic sheet is arranged on the seeding plate; The first through hole is in the shape of an oblong circle, and the length direction of the first through hole is perpendicular to the missing edge of the seeding disc seat; The seeding plate assembly also includes a seeding adjustment plate, a third through hole aligned with the first through hole is formed on the seeding adjustment plate, the third through hole is in the shape of an oblong circle, and the hole edge at the upper end of the third through hole is provided with a bevel chamfer, and the lower end is connected to the first through hole, and the lower end of the third through hole is provided with a convex tile extending into the first through hole and having the same thickness as the bottom plate of the seeding plate seat, and an adjustable fastening connection mechanism is provided between the seeding adjustment plate and the seeding plate seat.

2. The two-dimensional vibration rice seedling precision sowing device according to claim 1, characterized in that: The adjustable fastening connection mechanism includes a fastening connection piece arranged on the bottom plate of the sowing disc seat, and the seed feeding adjustment plate is provided with a long waist-shaped adjustment hole parallel to the length direction of the third through hole, and the fastening connection piece extends into the long waist-shaped adjustment hole for fastening.

3. The two-dimensional vibration rice seedling precision sowing device according to claim 1, characterized in that: The seeding plate assembly also includes a hole depth adjustment plate, which is fixedly arranged between the seeding plate seat and the seeding plate frame, and is provided with a fourth through hole that is aligned with the first through hole and has the same size and size, and is provided with a third magnetic sheet whose upper and lower ends are respectively adsorbed to the first magnetic sheet and the second magnetic sheet.

4. The two-dimensional vibration rice seedling precision sowing device according to claim 1, characterized in that: The transverse vibration assembly and the longitudinal vibration assembly both include a driving motor, a vibrating eccentric disc and a connecting rod. The vibrating eccentric disc is connected to the driving motor, and the two ends of the connecting rod are respectively rotatably connected to the vibrating eccentric disc, the seeding disc assembly or the seeding disc mounting frame.

5. The two-dimensional vibration rice seedling precision sowing device according to claim 4, characterized in that: The seeding plate mounting frame includes a lower rotating frame rotatably connected to the front end of the bracket, the telescopic end of the lifting cylinder is connected to the rear end of the lower rotating frame, the upper end of the lower rotating frame is provided with an upper sliding frame for transverse sliding, the seeding plate assembly is longitudinally slidably arranged on the upper sliding frame, the lower rotating frame is provided with a transverse slide rail that acts on the upper sliding frame, and the upper sliding frame is provided with a longitudinal slide rail that acts on the seeding plate assembly.

6. The two-dimensional vibration rice seedling precision sowing device according to claim 1, characterized in that: The seed supply assembly comprises a seed box and a groove wheel. The groove wheel is arranged at the lower end of the seed box, and the groove wheel is driven to rotate by a seed supply motor.

7. The two-dimensional vibration rice seedling precision sowing device according to claim 1, characterized in that: A seed collecting box is arranged at the lower end of the side where the seeding disc seat has a missing edge.

8. A sowing method using the two-dimensional vibration type rice precision seedling raising and sowing device according to any one of claims 1 to 7, characterized in that: The steps include: S1: when the sowing mechanism is horizontal, the seed supply assembly is started, and the seed supply assembly discharges a certain amount of rice seeds into the sowing mechanism away from the missing edge of the sowing disc seat at the side where there is no first through hole; S2: After the seed supply is completed, the sowing mechanism is lifted to an angle of 7.5°~12.5° with the horizontal plane by the lifting and lowering cylinder; S3: After the inclination angle of the sowing mechanism is fixed, the longitudinal vibration component is started, so that the sowing disc component performs longitudinal vibration with a frequency of 4 Hz to 5 Hz and an amplitude of 15 mm to 17 mm, so that the rice seeds are filled into the first through hole; S4: After the seeding tray assembly vibrates longitudinally for a period of time, the transverse vibration assembly is started. Under the action of the transverse vibration assembly, the seeding tray assembly is further vibrated transversely with a frequency between 4 Hz and 6 Hz and an amplitude between 15 mm and 21 mm, so as to accelerate the rapid filling of the first through holes that are not filled with seeds, and the first through holes that are filled with too much seeds are cleared out of the excess rice seeds. After all the first through holes are filled with rice seeds, the transverse vibration is stopped, and the remaining rice seeds are discharged from the seeding tray assembly under the action of the longitudinal vibration and the longitudinal vibration is stopped; S4: The sowing mechanism is laid flat by the lifting cylinder. When the seeding tray moves to the bottom of the sowing mechanism, the sowing plate is pushed by the sowing cylinder to open the lower end of the first through hole, so that the filled rice seeds fall into the seeding tray under their own gravity to complete the sowing process.

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