Seeding device for saffron crocus planting

Abstract

The invention relates to a seeding device for saffron crocus planting, and aims to realize an efficient, accurate and automatic seeding process, the device comprises a blanking plate, a plurality of seeding mechanisms and a conveying system, each seeding mechanism is provided with a guide hopper, a plurality of brackets, an upper roller and a lower roller, the rollers are in contact with a conveying belt, and the conveying belt is provided with planting sheets; the saffron crocus corm sowing device is used for bearing and conveying saffron crocus corms, the device drives the rolling wheels and the conveying belt to rotate synchronously through the motor, stable conveying and accurate sowing of the saffron crocus corms are achieved, automation and high efficiency of the sowing process are achieved, the sowing efficiency is remarkably improved, and the labor intensity of workers is reduced; through accurate corm positioning and conveying, the integrity of the bud ends of the corms is guaranteed, and the germination rate and the growth quality after planting are improved; a stable and reliable conveying system and an optimized soil treatment mechanism are adopted, so that the continuity of the seeding process and the uniformity of soil coverage are ensured.

Description

Technical Field

[0001] The present invention relates to a saffron planting sowing device, in particular to a saffron planting sowing device applied in the technical field of agricultural machinery. Background Art

[0002] Saffron is a high-value economic crop, and its planting process has high requirements on the accuracy and efficiency of sowing. In the prior art, a variety of sowing devices have been developed for saffron planting to improve sowing efficiency and planting quality. For example, Chinese utility model patent CN221151972U discloses a sowing device for saffron planting, which includes a fixed platform, through holes, ditching blades, a U-shaped frame, a leveling wheel, a feeding cylinder and other structures. By arranging a feeding auger and a first feeding pipe, the device improves the feeding efficiency, reduces manpower loss, and avoids the problem of seeds falling outside the storage bin.

[0003] On the other hand, Chinese utility model patent CN215529921U discloses an automated sowing and soil-covering device for field planting of saffron, which includes a planting vehicle body, a fixed platform, a sowing device, a furrowing device and a soil-covering device. The device has a high degree of automation and can realize integrated operations of sowing, furrowing, watering and fertilizing, thereby organically unifying the entire sowing process, improving planting efficiency and reducing manpower consumption.

[0004] However, although the above design has improved the sowing efficiency and automation level to a certain extent, it still has the following limitations: the existing device is prone to inaccurate seed positioning during seed positioning and transportation, which may damage the tender shoots of saffron bulbs and affect the germination rate after planting; although the trenching and covering devices can complete basic soil treatment, the looseness and covering uniformity of the soil are not adequately controlled, which may affect the growth environment of the bulbs. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to improve the positioning accuracy of the bulbs during the planting process of saffron, thereby reducing the impact on the bulb buds during the planting process, ensuring the uniformity of planting and the germination rate, improving the looseness and covering uniformity of the soil, and providing a better environment for the growth of saffron bulbs.

[0006] To solve the above problems, the present invention provides a sowing device for saffron planting, comprising a feeding plate, a plurality of sowing mechanisms are fixedly connected to the bottom end of the feeding plate, the sowing mechanism comprises a guide bucket, a bracket one, a bracket two and a bracket three are fixedly connected to the bottom end of the guide bucket, upper rollers and lower rollers are rotatably connected to the bracket one, the bracket two and the bracket three, the outer ends of the upper rollers and the lower rollers on each bracket one, the bracket two and the bracket three are in contact with the same conveyor belt, both ends of the lower roller shaft pass through the corresponding bracket one, the bracket two and the bracket three, and the penetrating parts are fixedly connected with a dial wheel, the outer end of the bracket one is fixedly connected to a motor at a position corresponding to the upper roller, the motor shaft is fixedly connected to the corresponding upper roller, the upper rollers on the bracket one and the bracket two and the bracket two and the bracket three are connected by a transmission shaft, and the outer end of the conveyor belt is fixedly connected to a plurality of planting sheets.

[0007] One end of the unloading plate is fixedly connected with a mounting plate, and the mounting plate is fixedly connected to the external power equipment. The multiple sowing mechanisms are all located on the same straight line, and the straight line is perpendicular to the forward direction of the external power equipment.

[0008] A bracket is fixedly connected to one end of the mounting plate with a grooved wheel bracket, and both ends of the grooved wheel bracket are rotatably connected with grooved wheels. The two grooved wheels are arranged close to each other at one end away from the bracket, and the axis of the grooved wheel is arranged at 60 degrees to the horizontal plane.

[0009] The ends of bracket two and bracket three away from bracket one are fixedly connected to the same soil covering bracket, and both ends of the soil covering bracket are rotatably connected to soil covering wheels. The two soil covering wheels are arranged close to each other at the ends away from bracket one, and the axes of the soil covering wheels are arranged at 60 degrees to the horizontal plane.

[0010] Through holes corresponding to the guide buckets are opened on the unloading plate at positions corresponding to the guide buckets, and the top ends of the through holes are provided with rounded corners. The top end of the unloading plate away from the mounting plate is rotatably connected to a discharge plate, and grooves for placing saffron bulbs are opened on the discharge plate at positions corresponding to the through holes on the guide buckets.

[0011] A plurality of guide rods are fixedly connected to the top of the unloading plate and the unloading plate, and the guide rods are arranged correspondingly to the grooves on the unloading plate. A transition block is fixedly connected between the unloading plate and the unloading plate, and the transition block is made of flexible material.

[0012] A plurality of guide rings are fixedly connected in the guide bucket, and the plurality of guide rings are all made of flexible materials. The bottom end of the guide bucket is a conical structure, and the end with a smaller diameter of the conical structure is arranged away from the blanking plate.

[0013] The outer ends of the upper roller and the lower roller are both provided with arc grooves, and one end of the conveyor belt close to the upper roller and the lower roller is a circular protrusion structure matched with the outer end grooves of the upper roller and the lower roller.

[0014] The conveyor belt and the planting sheets are both made of flexible materials, and the distance between two adjacent planting sheets is greater than the height of the saffron bulbs along the growth direction thereof.

[0015] In summary, this application has the following beneficial effects: 1. This device integrates multiple functions such as automatic furrowing, sowing, and soil covering. It can complete the precise sowing of saffron bulbs in a single operation process. The connection method between the mounting plate and the external power equipment enables the device to be dragged forward stably to achieve continuous and automated field operations, greatly improving the sowing efficiency and reducing the labor intensity and time cost of manual operation.

[0016] 2. The groove design on the discharge plate combined with the guide rod and flexible guide ring effectively guides and fixes the saffron bulbs, ensuring that the roots of the bulbs are close to the discharge plate and the bud ends are facing upward. This precise positioning avoids the bulbs from flipping or dislocation during the transmission process, ensures the integrity of the bulb bud ends, and helps to improve the germination rate and growth quality after planting.

[0017] 3. The arc-shaped groove and circular protrusion structure between the conveyor belt and the roller ensure the stability and anti-slip performance of the conveyor belt during operation. The conveyor belt and planting sheet made of flexible material can effectively buffer the impact of the bulbs when they fall and reduce damage to the bulbs. At the same time, they can adapt to bulbs of different specifications and ensure the continuity and smoothness of the transmission process.

[0018] 4. The automatic rotation design of the trenching wheel and the covering wheel enables the device to efficiently trench and cover the soil during the forward process. The trenching wheel pushes the soil at a specific angle to form a suitable planting groove; the covering wheel evenly covers the soil on the bulbs after sowing to ensure the consistency of planting depth and uniformity of soil coverage. In addition, the wave stirring function of the dial wheel effectively breaks and disperses larger pieces of soil, optimizes the soil structure, and creates a loose soil environment conducive to the growth of saffron bulbs.

[0019] 5. Through multiple protection measures such as flexible guide rings, rounded through holes and flexible conveyor belts, this device effectively reduces the risk of physical damage to the bulbs during the sowing process. The flexible design of the transition block further cushions the impact of the movement of the various components of the device on the bulbs, ensures the integrity of the bulb buds, and significantly improves the survival rate and germination rate after planting.

[0020] 6. The multi-sowing linear arrangement design of the sowing mechanism enables the device to complete the sowing of multiple rows of saffron bulbs at the same time, further improving the working efficiency. The overall structure is compact, the various components are coordinated, the operation is easy, and there is no need for complicated adjustments and maintenance. It is suitable for field operation needs of different sizes and terrains.

[0021] 7. This device adopts a variety of flexible materials and modular design, which makes it highly adaptable and can meet the sowing needs of different soil types and bulb specifications. At the same time, the connection and fixing methods between the components are simple, which is convenient for daily maintenance and replacement, extending the service life of the device and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the overall structure diagram of this application; Figure 2 This is an overall exploded view of this application; Figure 3 This is a partial appearance structure diagram of this application; Figure 4 Partial explosion for this application Figure 1 ; Figure 5 Partial explosion for this application Figure 2 ; Figure 6 Partial explosion for this application Figure 3 ; Figure 7 This is the front view of the application; Figure 8 For this application Figure 7 Middle AA section view; Fig. 9 It is a partial front view of this application; Fig.10 For this application Fig. 9 Middle BB section view; Fig.11 For this application Fig.10 Middle CC section view; Fig.12 For this application Fig.11 Middle DD section view; Fig.13 This is the appearance structure diagram of this application.

[0023] Description of the numbers in the figure: 1. Feeding plate; 2. Guide bucket; 3. Bracket 1; 4. Bracket 2; 5. Bracket 3; 6. Upper roller; 7. Lower roller; 8. Conveyor belt; 9. Pedal wheel; 10. Motor; 11. Drive shaft; 12. Planting piece; 13. Mounting plate; 14. Grooving wheel bracket; 15. Grooving wheel; 16. Soil covering bracket; 17. Soil covering wheel; 18. Feeding plate; 19. Guide rod; 20. Transition block. DETAILED DESCRIPTION

[0024] Two embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] Example 1 like Figures 1 to 13 As shown, a saffron planting sowing device described in this embodiment, with reference to claims 1 to 4, comprises a blanking plate 1, one end of the blanking plate 1 is fixedly connected to a mounting plate 13, the mounting plate 13 is fixedly connected to an external power device, a plurality of sowing mechanisms are fixedly connected to the bottom end of the blanking plate 1, the plurality of sowing mechanisms are all located on the same straight line, and the straight line is perpendicular to the forward direction of the external power device, each sowing mechanism comprises a guide bucket 2, a bracket 1 3, a bracket 2 4 and a bracket 3 5 are fixedly connected to the bottom end of the guide bucket 2, the bracket 1 3, the bracket 2 4 and the bracket 3 5 are rotatably connected to an upper roller 6 and a lower roller 7, and each bracket The outer ends of the upper roller 6 and the lower roller 7 on the bracket 1 3, the bracket 2 4 and the bracket 3 5 contact the same conveyor belt 8, and both ends of the rotating shaft of the lower roller 7 pass through and are fixedly connected to the dial wheel 9, which is used to move the soil during the movement of the device. The outer end of the bracket 1 3 is fixedly connected to the corresponding position of the upper roller 6 with a motor 10, and the rotating shaft of the motor 10 is fixedly connected to the corresponding upper roller 6; the upper rollers 6 on the bracket 1 3 and the bracket 2 4 as well as the bracket 2 4 and the bracket 3 5 are connected by a transmission shaft 11 to synchronously drive the multiple upper rollers 6 to rotate, and the outer end of the conveyor belt 8 is fixedly connected to multiple planting pieces 12 for carrying and transporting saffron bulbs.

[0026] A trenching wheel bracket 14 is fixedly connected to one end of the bracket 3 close to the mounting plate 13, and trenching wheels 15 are rotatably connected to both ends of the trenching wheel bracket 14. The two trenching wheels 15 are arranged close to each other at one end away from the bracket 13, and the axis of the trenching wheel 15 is arranged at 60 degrees to the horizontal plane, so as to push the soil to both sides to form a sowing furrow during the forward movement. The ends of the brackets 2 4 and 3 5 away from the bracket 1 3 are fixedly connected to the same soil covering bracket 16, and soil covering wheels 17 are rotatably connected to both ends of the soil covering bracket 16. The two soil covering wheels 17 are arranged close to each other at one end away from the bracket 1 3, and the axis of the soil covering wheels 17 is also arranged at 60 degrees to the horizontal plane, so as to push the soil in the furrow back for covering.

[0027] Working process First, the mounting plate 13 is fixedly connected to the external power equipment. When the power equipment moves forward, it will drive the entire device to move forward in the field.

[0028] As the device moves forward, the trenching wheel 15 contacts the ground and rotates automatically. It is designed at an angle of 60 degrees to the ground, so that the trenching wheel 15 can efficiently push the surface soil to both sides to form a groove suitable for planting saffron bulbs. Since the trenching wheels 15 at both ends are arranged close to each other, the trenching width is moderate and the trench wall is relatively neat.

[0029] The motor 10 in the device drives the upper roller 6 on the bracket 1 3 to rotate, and the transmission shaft 11 is used to realize the synchronous rotation of the upper roller 6 on the bracket 2 4 and the bracket 3 5, so that the same conveyor belt 8 can achieve continuous rotation. The planting piece 12 at the outer end of the conveyor belt 8 carries the saffron bulbs during the rotation process, so that the bulbs are gradually transported downward along with the conveyor belt 8 until the bulbs are separated from the end of the planting piece 12 and fall into the soil after the trenching under the action of gravity. In this process, the planting piece 12 is used to position and carry the saffron bulbs. The ends of the multiple planting pieces 12 that are close to each other slightly squeeze the saffron bulbs, so that the young shoots of the bulbs are always facing upwards, avoiding direct contact with the ground and damage to the young shoots during the falling process of the bulbs.

[0030] At the same time, the lower roller 7 drives the thumbwheel 9 to rotate during the rotation process. When the thumbwheel 9 contacts the soil, it moves and preliminarily stirs the larger pieces of soil, thereby making the soil at the bottom of the ditch or in the ditch relatively loose and removing larger pieces of obstructive soil, ensuring that the saffron bulbs can be planted in a loose soil environment.

[0031] When the bulbs fall into the ditch, the device continues to move forward with the external power equipment, the covering wheels 17 contact the ground and rotate automatically, and the two covering wheels 17 gradually push the soil opened by the ditching wheels 15 along both sides of the ditch to the center of the ditch to cover the saffron bulbs. At the same time, the covering process cooperates with the rotation of the thumbwheel 9 to make the soil finer and level the covering layer to ensure a stable planting depth and uniform coverage.

[0032] By arranging the trenching wheel bracket 14 and the trenching wheel 15 at the bracket 3 position, the trench can be opened automatically when the device is dragged forward by the power equipment to form a suitable planting trench; subsequently, the soil covering bracket 16 and the soil covering wheel 17 are used to realize automatic soil covering. The structural setting of the trenching wheel 15 and the soil covering wheel 17 with the axis at 60 degrees to the horizontal plane can make the soil turning more efficient, reduce the resistance to soil turning and make the trench wall and the soil covering layer smoother.

[0033] The planting piece 12 fixedly connected to the outer end of the conveyor belt 8 can accurately transport the saffron bulbs into the ditch under the cooperative drive of the motor 10, the upper roller 6 and the lower roller 7. The dial wheels 9 fixedly connected to the two ends of the rotating shaft of the lower roller 7 can crush and disperse the large pieces of soil at the bottom of the ditch before and after the bulbs fall, thereby ensuring the looseness of the soil in the ditch and preventing large lumps from hindering or damaging the growth of the bulbs.

[0034] The mounting plate 13 allows the device to be directly mounted on a variety of external power equipment to meet the field operation needs of multiple scenarios; multiple sowing mechanisms are arranged side by side on the same straight line, and the straight line is perpendicular to the forward direction of the external power equipment. This layout can not only complete the sowing of multiple rows of saffron bulbs at one time, but also avoid the sowing deviation caused by the forward direction of the power equipment.

[0035] The unloading plate 1, the guide bucket 2, the bracket one 3, the bracket two 4 and the bracket three 5 and other components form a stable and compact sowing mechanism structure. It only needs to provide power through the motor 10 to drive the upper roller 6 and the conveyor belt 8 to continuously transport the bulbs. In combination with the trenching wheel 15 and the covering wheel 17, the continuous operations of trenching, sowing and covering can be realized on one working line, which has high work efficiency and reduces labor input.

[0036] Through the above-mentioned structure and process, the present embodiment can realize the mechanized operation of the whole process such as furrowing, sowing and covering soil in the field, with high sowing efficiency, saving time and labor, and effectively improving the planting quality and survival rate of saffron bulbs. The soil is stirred for the second time by means of the thumbwheel 9 to achieve the crushing of large pieces of soil and soil refinement, which is conducive to the subsequent growth of the bulbs. The above-mentioned series of technical features cooperate with each other, so that the sowing device for saffron planting has the beneficial effects of reasonable structure, high operating efficiency and easy operation.

[0037] Example 2 like Figures 1 to 13 As shown, this embodiment is further optimized and improved on the basis of embodiment 1; Through holes corresponding to the guide bucket 2 are provided on the unloading plate 1, and the tops of these through holes are all provided with rounded corners to prevent the sharp corners from cutting the saffron bulbs or causing blockage. The top of the unloading plate 1 away from the mounting plate 13 is rotatably connected with a discharge plate 18, and the through hole positions corresponding to the guide bucket 2 on the discharge plate 18 are all provided with grooves for placing the saffron bulbs. Through the setting of the grooves, the saffron bulbs can be positioned in the feeding link, so that the roots of the bulbs are close to the discharge plate 18, which is convenient for the bulbs to maintain a stable orientation and prevent inversion or rolling. In order to ensure that the saffron bulbs slide smoothly in the grooves on the discharge plate 18 and reduce the overturning or bumping of the bulbs during the sliding process, a plurality of guide rods 19 are fixedly connected between the unloading plate 1 and the top of the discharge plate 18. The plurality of guide rods 19 respectively correspond to the groove positions on the discharge plate 18, so that the bulbs can move along a specific path when the discharge plate 18 is tilted or reset.

[0038] In addition, a transition block 20 is fixedly connected between the unloading plate 1 and the unloading plate 18. The transition block 20 is made of a flexible material and is used to provide appropriate elasticity and transition buffer when the unloading plate 18 is turned up or restored, thereby reducing the collision impact caused by the unloading plate 18 on the bulb or the device body during movement. A plurality of guide rings are fixedly connected in the guide bucket 2, and each guide ring is made of flexible material to prevent the outer skin or bud end of the bulb from being damaged due to hard obstruction during the falling and sliding process. At the same time, the bottom end of the guide bucket 2 is designed as a conical structure, and the end with a smaller diameter of the conical structure is arranged away from the unloading plate 1, which can effectively concentrate and guide the bulbs to accurately fall between the bracket 1 3, the bracket 2 4 and the bracket 3 5 along the narrow port, further improving the accuracy and safety of sowing. Arc-shaped grooves are provided at the outer ends of the upper roller 6 and the lower roller 7, and a circular protrusion structure is provided on the edge of the conveyor belt 8 that cooperates therewith. Through the mutual engagement of the grooves and the protrusions, a more stable transmission effect can be achieved when the conveyor belt 8 contacts the rollers, avoiding problems such as slipping and deviation when the load is large or soil is attached.

[0039] The conveyor belt 8 and the planting sheet 12 are both made of flexible materials and can be deformed appropriately when transporting saffron bulbs, which not only ensures that the bulbs are stably clamped, but also properly cushions the collision between the bulbs and the planting sheet 12 and the internal components of the device. The distance between two adjacent planting sheets 12 is greater than the height of the saffron bulbs along their growth direction, ensuring that the bulbs will not squeeze or overlap each other during the circulation of the conveyor belt 8, thereby better protecting the integrity of the bud ends.

[0040] Working process Before use, rotate the discharge plate 18 upward to tilt the top of the discharge plate 18. When the discharge plate 18 is tilted, the operator can place the saffron bulbs into the grooves on the discharge plate 18 in order, with the roots of the bulbs close to the discharge plate 18 and the bud ends facing upward. Thanks to the guidance of the guide rod 19 and the elastic buffering of the transition block 20, the bulbs are not easily turned over or damaged during the loading process.

[0041] When the device starts working and restores the discharge plate 18 to a suitable inclination angle, the saffron bulbs slowly slide down from the grooves of the discharge plate 18 under the action of gravity, and enter the through holes opened on the discharge plate 1 in turn. The rounded corner design at the top of the through holes can reduce the contact stress between the bulbs and the edges of the holes to prevent scratches on the bulbs. Then, the bulbs pass through the through holes and enter the guide bucket 2. The flexible guide ring has a shock-absorbing and direction-limiting effect on the bulbs, allowing the bulbs to maintain the correct direction and slide to the transfer area between bracket one 3, bracket two 4 and bracket three 5.

[0042] Driven by the motor 10, the upper roller 6 drives the lower roller 7 and the conveyor belt 8 to rotate synchronously through the transmission shaft 11, and the planting piece 12 circulates at the outer end of the conveyor belt 8. When the bulb reaches the top of the conveyor belt 8, it will be received by the planting piece 12 and transported downward with the conveyor belt 8. The arc-shaped grooves and circular protrusions of the conveyor belt 8 and the upper roller 6 and the lower roller 7 cooperate to ensure the stable operation of the conveyor belt 8, and the flexible material effectively absorbs the impact of the bulb when it falls. When the bulb moves to the lower end with the conveyor belt 8, it leaves the planting piece 12 under the action of gravity and falls into the soil ditch.

[0043] When the bulbs fall into the groove, the lower roller 7 drives the thumbwheel 9 to move and stir the larger soil clods, thereby forming a soil environment suitable for the growth of saffron bulbs.

[0044] The automatic rotation cooperation of the furrowing wheel 15 and the soil covering wheel 17 (as described above) can first push the soil and form a furrow, and then cover the soil to complete the whole sowing process.

[0045] Through the combined design of the grooves on the discharge plate 18, the guide rods 19 and the transition blocks 20, the bulbs are not easily tipped over or violently collided during loading, and the directions of the bulb roots and bud ends remain basically unchanged, thus avoiding damage to the growing parts.

[0046] The through hole corresponding to the blanking plate 1 adopts a rounded corner structure, which not only reduces the friction between the bulb and the hole wall, but also reduces the risk of the bulb being stuck or damaged; the flexible guide ring plays a protective and buffering role in the guide bucket 2, further preventing the hard bucket wall from scratching the bulb.

[0047] The arc-shaped grooves at the outer ends of the upper roller 6 and the lower roller 7 cooperate with the circular protrusion structure on the edge of the conveyor belt 8 to achieve anti-slip and accurate positioning of the transmission. During continuous sowing operations, the conveyor belt 8 maintains stable operation and allows the planting piece 12 to firmly clamp the bulb, significantly reducing the incidence of falling or collision.

[0048] The distance between two adjacent planting sheets 12 is greater than the height of the saffron bulbs along the growth direction, and the conveyor belt 8 and the planting sheets 12 are made of flexible materials, which can adapt to bulbs of different sizes and avoid squeezing between bulbs, which is beneficial to subsequent rapid sowing and improving survival rate.

[0049] This embodiment targets the fragile bud ends of saffron bulbs, especially in the feeding, guiding, conveying and other links, and adopts flexible and buffering designs, which can maintain good operation stability and safety during high-speed or batch production. At the same time, the rotatable connection between the unloading plate 1 and the discharge plate 18 makes the use and maintenance of the equipment more convenient.

[0050] Working principle: before use, rotate the discharge plate 18 upward to tilt the top of the discharge plate 18. When in use, mount the mounting plate 13 of the device on the corresponding power equipment, and then drag the device forward by the power equipment. During the forward movement of the device, saffron bulbs are placed in the grooves on the discharge plate 18 in order manually or through other equipment, and the roots of the bulbs are close to the discharge plate 18 so that one end of the bud is facing upward. At this time, the saffron bulbs slide down along the grooves on the discharge plate 18 under the action of gravity into the through holes on the blanking plate 1.

[0051] Then, under the action of gravity, the saffron bulbs fall from the guide bucket 2 into between the bracket one 3, the bracket two 4 and the bracket three 5, and at the same time, the upper roller 6 on the bracket one 3 is driven to rotate by the motor 10, and the upper roller 6 on the bracket one 3 drives the upper rollers 6 on the bracket two 4 and the bracket three 5 to rotate synchronously through the transmission shaft 11. During the rotation of the multiple upper rollers 6, the corresponding conveyor belt 8 and the planting sheet 12 are driven to rotate. During the rotation of the conveyor belt 8 and the planting sheet 12, the saffron bulbs are conveyed downward until the saffron bulbs leave the conveyor belt 8 and fall into the soil under the action of gravity; The multiple lower rollers 7 drive the corresponding thumbwheels 9 to rotate during the rotation process. The multiple thumbwheels 9 perform wave stirring on the soil during the rotation process, and the soil with larger particles in contact with the thumbwheels 9 is pushed away, leaving the soil with smaller particles, thereby preventing the saffron bulbs from being planted in larger pieces of soil and affecting their growth. At the same time, the soil with finer particles helps to cushion the impact of the saffron bulbs falling and avoid the saffron bulbs from being damaged by the impact.

[0052] When the device is moving forward, the trenching wheel 15 and the covering wheel 17 automatically rotate due to friction with the soil. The two trenching wheels 15 push the soil to both sides during the rotation to form a planting trench. Then, the saffron bulbs fall into the planting trench from between the multiple conveyor belts 8. At the same time, the multiple push wheels 9 push the soil with larger particles in the planting trench away. Then, the two covering wheels 17 push the soil on both sides of the planting trench to the center during the rotation to cover the saffron bulbs, thereby completing the planting of the saffron bulbs.

[0053] During the planting process, after the two furrowing wheels 15 push away the soil, the rotation of the multiple thumbwheels 9 can also level and refine the planting furrow.

[0054] The guide rod 19 makes it difficult for the saffron corm to turn over when it moves in the groove on the discharge plate 18, thereby preventing the saffron corm buds from being damaged.

[0055] During the entire planting process, keep the saffron bulb sprouts facing upwards to prevent them from being damaged by being touched.

[0056] In summary, based on the existing automatic sowing mechanism (such as the thumbwheel 9, the furrowing wheel 15, the covering wheel 17, etc.), the present embodiment realizes the smooth connection of each link from bulb placement, directional guidance to transmission and falling through the cooperation of the unloading plate 1, the unloading plate 18, the guide rod 19, the transition block 20 and the flexible guide ring; the concave-convex cooperation between the roller and the conveyor belt 8 and the use of the flexible planting sheet 12 further improve the bulb transmission efficiency and operation safety, and has the beneficial effects of reasonable structure, easy use and obvious anti-damage effect.

[0057] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A sowing device for saffron planting, characterized in that: The invention comprises a feeding plate (1), the bottom end of which is fixedly connected to a plurality of sowing mechanisms, the sowing mechanisms comprising a guide bucket (2), the bottom end of which is fixedly connected to a bracket one (3), a bracket two (4) and a bracket three (5), the bracket one (3), the bracket two (4) and the bracket three (5) are all rotatably connected to an upper roller (6) and a lower roller (7), the outer ends of the upper rollers (6) and the lower rollers (7) on each of the brackets one (3), the bracket two (4) and the bracket three (5) are in contact with a same conveyor belt (8), the lower rollers ( 7) Both ends of the rotating shaft penetrate the corresponding bracket one (3), bracket two (4) and bracket three (5), and the penetrated parts are fixedly connected to the dial wheel (9); the outer end of the bracket one (3) is fixedly connected to the corresponding position of the upper roller (6) with a motor (10); the rotating shaft of the motor (10) is fixedly connected to the corresponding upper roller (6); the bracket one (3) and the bracket two (4) and the upper rollers (6) on the bracket two (4) and the bracket three (5) are connected through a transmission shaft (11); and the outer end of the conveyor belt (8) is fixedly connected to a plurality of planting sheets (12).

2. A sowing device for saffron planting according to claim 1, characterized in that: One end of the blanking plate (1) is fixedly connected to a mounting plate (13), and the mounting plate (13) is fixedly connected to an external power device. The plurality of seeding mechanisms are all located on the same straight line, and the straight line is perpendicular to the forward direction of the external power device.

3. A sowing device for saffron planting according to claim 2, characterized in that: The end of the bracket one (3) close to the mounting plate (13) is fixedly connected to a groove opening wheel bracket (14), and both ends of the groove opening wheel bracket (14) are rotatably connected to groove opening wheels (15). The two groove opening wheels (15) are arranged close to each other at the end away from the bracket one (3), and the axis of the groove opening wheel (15) is arranged at 60 degrees to the horizontal plane.

4. A sowing device for saffron planting according to claim 1, characterized in that: The ends of the second bracket (4) and the third bracket (5) away from the first bracket (3) are fixedly connected to the same soil covering bracket (16), and both ends of the soil covering bracket (16) are rotatably connected to soil covering wheels (17). The two soil covering wheels (17) are arranged close to each other at the ends away from the first bracket (3), and the axes of the soil covering wheels (17) are arranged at 60 degrees to the horizontal plane.

5. A sowing device for saffron planting according to claim 1, characterized in that: The unloading plate (1) is provided with through holes corresponding to the guide bucket (2) at positions corresponding to the guide bucket (2), and the top ends of the through holes are provided with rounded corners. The top end of the unloading plate (1) away from the mounting plate (13) is rotatably connected to a discharge plate (18), and the discharge plate (18) is provided with grooves for placing saffron bulbs at positions corresponding to the through holes on the guide bucket (2).

6. A sowing device for saffron planting according to claim 5, characterized in that: A plurality of guide rods (19) are fixedly connected to the top ends of the blanking plate (1) and the discharge plate (18), and the guide rods (19) are arranged in a one-to-one correspondence with the grooves on the discharge plate (18). A transition block (20) is fixedly connected between the blanking plate (1) and the discharge plate (18), and the transition block (20) is made of a flexible material.

7. A sowing device for saffron planting according to claim 1, characterized in that: A plurality of guide rings are fixedly connected inside the guide bucket (2), and the plurality of guide rings are all made of flexible material. The bottom end of the guide bucket (2) is a conical structure, and the end with a smaller diameter of the conical structure is arranged away from the blanking plate (1).

8. A sowing device for planting saffron according to claim 1, characterized in that: The outer ends of the upper roller (6) and the lower roller (7) are both provided with arc-shaped grooves, and the end of the conveyor belt (8) close to the upper roller (6) and the lower roller (7) is a circular protrusion structure that matches the outer end grooves of the upper roller (6) and the lower roller (7).

9. A sowing device for saffron planting according to claim 1, characterized in that: The conveyor belt (8) and the planting sheet (12) are both made of flexible materials, and the distance between two adjacent planting sheets (12) is greater than the height of the saffron bulb along its growth direction.

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