A belt-type seed dividing mechanism for precision seed dividing

Abstract

The application discloses a belt type seed distributing mechanism for precision seed distribution, which comprises a belt, a belt driving mechanism and a support, and further comprises a seed storage area; the surface of the belt is provided with array distributed type holes, and the belt has an inclined belt section, and the seeds in the type holes are discharged from the upper end of the inclined belt section; the belt type seed distributing mechanism can make overall translational rotary motion; the belt has a horizontal belt section, and the horizontal belt section is provided with a seed blocking mechanism, so that the seed storage area is formed on the horizontal belt section. In the application, the belt type seed distributing mechanism makes overall translational rotary motion; on one hand, with the circulation operation of the belt, the type holes pass through the seed storage area in sequence, and the seeds are filled in each type hole sufficiently, so that the phenomenon of incomplete filling is reduced; on the other hand, after entering the inclined belt section, the rotary action promotes the seeds not filled in the type holes to be shaken off, so that the preliminary seed cleaning is completed, and the seeds with proper quantity can be accurately output in rows, so that the precision and efficiency of sowing are ensured, and the belt type seed distributing mechanism is suitable for precision sowing of seedling trays.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural seed sowing, in particular to a belt type seed distribution mechanism for seed precision distribution. BACKGROUND

[0002] In the field of agricultural seed sowing, especially in the process of rice seedling cultivation, accurate control of seed sowing quantity and position is of great significance to improve seedling quality and efficiency.

[0003] In the prior art, a patent document with publication number CN208300268U discloses a mechanical type rice blanket seedling and pot seedling tray seedling precision sowing device. The device realizes accurate sowing of seeds through a hopper, a power part and a carrier roller on the frame, and a type hole belt arranged on the carrier roller. The suction holes on the type hole belt are in U-shaped distribution, which can accommodate and deliver seeds, thereby realizing precision sowing of the seedling tray. However, the device has certain limitations. First, the device uses an inclined part of the type hole belt to store seeds in the hopper in order to fill the type holes on the inclined part. The overall size of the hopper needs to be relatively large, and a sufficient depth of seeds needs to be accumulated in the hopper to prevent under-filling. Therefore, the length, width and thickness of the entire device are large, which is not conducive to the miniaturization of the structure. In addition, the inclination angle of the type hole belt is fixed and cannot be dynamically adjusted according to different seed characteristics (such as particle size and weight), which limits the adaptability of the device to diversified crop seeds. The roller brush is installed at the mouth of the seed box, and the type hole belt carries a large number of seeds on the inclined part, which makes it difficult to clean the roller brush, causing the type hole belt to carry excess seeds. SUMMARY

[0004] The present application provides a belt type seed distribution mechanism for seed precision distribution, which can guarantee the filling and sowing effect and miniaturize the structure.

[0005] Technical solution: To achieve the above-mentioned purpose, the belt type seed distribution mechanism for seed precision distribution of the present application comprises a belt, a belt driving mechanism and a support, and further has a seed storage area. The surface of the belt is formed with type holes arranged in an array, and the belt has an inclined belt section. The seeds in the type holes are discharged from the upper end of the inclined belt section.

[0006] The belt type seed distribution mechanism can perform translational rotation movement as a whole. The belt has a horizontal belt section, and the horizontal belt section has a seed blocking mechanism, so that the seed storage area is formed on the horizontal belt section. The part of the belt on the horizontal belt section serves as the bottom plate of the seed storage area. In actual use, the part of the belt on the horizontal belt section is dynamically changed because the belt is in circulation.

[0007] In use, the belt type seed sorting mechanism performs high-frequency rotating motion, that is, translational motion along a circular trajectory. The seeds stored in the seed storage area move more violently under the rotating action of the belt type seed sorting mechanism. With the operation of the belt, the type holes on the belt pass through the seed storage area in turn. The movement of the seeds in the seed storage area enables the seeds to fully fill all the type holes, preventing missing filling. After the type holes are filled in the seed storage area, they enter the inclined belt section. Under the overall rotating action of the belt type seed sorting mechanism, most of the seeds in the type holes that are not filled in the inclined belt section are shaken off and roll down, achieving preliminary seed cleaning around the type holes.

[0008] To prevent the seeds rolled down from the inclined belt section from gathering at the transition position between the horizontal belt section and the inclined belt section, a scraper belt assembly is installed above the horizontal belt section. The scraper belt assembly has a second belt and scrapers moving with the second belt. The moving direction of the scrapers located at the lower half of the second belt is opposite to the moving direction of the belt part at the horizontal belt section. In this way, the seeds rolled down from the inclined belt section can be scraped back, and the uniformity of the seed accumulation on the horizontal belt section can be maintained, improving the filling efficiency and filling effect.

[0009] Further, the support includes a main support and a secondary support, the secondary support being capable of rotating and adjusting the angle relative to the main support; the two end positions of the belt are respectively provided with a first belt roller and a second belt roller, the first belt roller and the second belt roller being respectively installed on the main support and the secondary support.

[0010] The main support is provided with a third belt roller and a fourth belt roller corresponding to the upper and lower two corner positions of the belt.

[0011] Further, the main support is provided with an upwardly extending circular-arc-shaped fixed part; the fixed part is provided with a plurality of fixed holes arranged along a circular-arc-shaped path or a circular-arc-shaped through slot; the secondary support is connected with a fixed screw passing through the fixed hole or the arc-shaped through slot.

[0012] Specifically, the inner side of the main support is fixed with a transition block, the transition block is provided with a hollow part, so that an active slot accommodating the end part of the secondary support is formed between the main support and the transition block. The main support is further fixed with a flange shaft penetrating into the active slot from the outer side thereof, the flange shaft establishes the rotational connection relationship between the main support and the secondary support. The inner side of the transition block is fixed with a bearing seat connected with the fourth belt roller. In this way, the structure layout is reasonable, so that the fourth belt roller and the secondary support can both establish the rotational connection relationship with the main support, and they do not interfere with each other.

[0013] Further, the number of the third belt rollers is two, which are respectively arranged at the two side edges of the upper corner position of the belt.

[0014] Further, a plurality of rollers acting on the upper turning position of the belt are installed between the two third belt rollers; a first shielding unit and a second shielding unit are arranged corresponding to each of the rollers; the first shielding unit and the second shielding unit are both hollow structures and are arranged around the rollers, and both have a tip end towards the horizontal belt segment and a tip end towards the inclined belt segment.

[0015] Further, the first belt roller is a roller motor, and both ends thereof are connected to the main support through a tensioning mechanism.

[0016] Further, the seed blocking mechanism comprises two side plates located on the left and right sides of the belt, and further comprises a front plate located on the front side of the horizontal belt segment; the front plate and the two side plates form a U-shaped structure, and the lower edges of the three are each provided with a brush.

[0017] Further, the upper end of the inclined belt segment is provided with a driving brush roller, which can further clean the outside of the mold hole to prevent the belt from carrying too many seeds and affecting the seed spacing accuracy.

[0018] Further, a plurality of guide hoppers are installed on the rear side of the upper end of the inclined belt segment, and each of the guide hoppers corresponds to a row of mold holes on the belt.

[0019] Beneficial effects: the belt type seed dividing mechanism for seed precision dividing has the following advantages

[0020] Beneficial effects:

[0021] (1) The belt type seed dividing mechanism is in translational rotational motion, on the one hand, as the belt circulates, the mold holes pass through the seed storage area one by one, and the seeds are vigorously moved to fill each mold hole, reducing the phenomenon of incomplete filling, on the other hand, after entering the inclined belt segment, the rotational action causes the seeds not filled in the mold holes to be shaken off, completing the preliminary seed cleaning, and a row of seeds with the correct number can be accurately output, ensuring the seeding accuracy and efficiency, and being suitable for precision seeding of seedling trays.

[0022] (2) The belt type seed dividing mechanism rationally arranges the structure of the belt with mold holes and the surrounding structure, integrates the seed storage, seed dividing and preliminary seed cleaning functions, and gathers the seeds on the horizontal belt segment, without the need for a seed box arranged around the belt, and is more compact and small compared with the existing seed dividing mechanism.

[0023] (3) The inclination angle of the auxiliary support can be adjusted to adjust the inclination of the inclined belt segment, facilitating the adjustment of the preliminary seed cleaning effect.

[0024] (4) By setting multiple rollers, the belt surface between two third belt rollers can be effectively supported, and the first and second cover units can prevent seeds from entering the lower part of the rollers, causing the rollers to crush the seeds. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Figure 1 is a first perspective view of a belt-type seed distribution mechanism for precision seed distribution.

[0026] Figure 2 Figure 2 is a second perspective view of a belt-type seed distribution mechanism for precision seed distribution.

[0027] Figure 3 Figure 3 is a side view of a belt-type seed distribution mechanism for precision seed distribution.

[0028] Figure 4 Figure 4 is a cross-sectional view of a belt-type seed distribution mechanism for precision seed distribution.

[0029] Figure 5 Figure 5 is a connection structure diagram of the main support and the auxiliary support.

[0030] Figure 6 Figure 6 is a structure diagram of the belt corner in the preferred embodiment.

[0031] Figure 7 Figure 7 is a cross-sectional view of a belt-type seed distribution mechanism for precision seed distribution in the preferred embodiment.

[0032] In the figure: 1 - belt; 1a - type hole; 1b - inclined belt section; 1c - horizontal belt section; 2 - belt driving mechanism; 3 - support; 31 - main support; 31a - fixed part; 31b - arc-shaped through slot; 32 - auxiliary support; 41 - first belt roller; 42 - second belt roller; 43 - third belt roller; 44 - fourth belt roller; 45 - transition block; 46 - flange shaft; 47 - bearing seat; 48 - roller; 49 - first cover unit; 40 - second cover unit; 5 - tensioning mechanism; 6 - seed blocking mechanism; 61 - side wall; 62 - front wall; 7 - scraper belt assembly; 71 - scraper; 72 - second belt; 8 - guide hopper. DETAILED DESCRIPTION

[0033] The application will be further described below in conjunction with the drawings.

[0034] As Figures 1 to 3 shown, the belt-type seed distribution mechanism for precision seed distribution comprises a belt 1, a belt driving mechanism 2, and a support 3, and also has a seed storage area; the surface of the belt 1 is formed with an array of type holes 1a, and the belt 1 has an inclined belt section 1b, and the seeds in the type holes 1a are discharged from the upper end of the inclined belt section 1b;

[0035] The belt type seed separating mechanism can perform translational rotary motion as a whole; the belt 1 has a horizontal belt section 1c, and the horizontal belt section 1c is provided with a seed blocking mechanism 6, so that the seed storage area is formed on the horizontal belt section 1c, and the belt section at the horizontal belt section 1c actually serves as the bottom plate of the seed storage area. In actual use, since the belt 1 is in cyclic operation, the belt section actually at the horizontal belt section 1c is dynamically changed.

[0036] In use, the belt type seed separating mechanism performs high-frequency rotary motion as a whole, that is, translational motion along a circular track. The seeds stored in the seed storage area move more violently under the rotary action of the belt type seed separating mechanism. With the operation of the belt 1, the mold holes 1a on the belt 1 pass through the seed storage area in sequence. The movement of the seeds in the seed storage area enables the seeds to fully fill all the mold holes 1a and prevents missing filling. After the mold holes 1a are filled in the seed storage area, they enter the inclined belt section 1b. Under the overall rotary action of the belt type seed separating mechanism, most of the seeds in the inclined belt section 1b that are not filled into the mold holes 1a are shaken off and rolled down, achieving preliminary seed cleaning around the mold holes 1a.

[0037] In order to prevent the seeds rolled down from the inclined belt section 1b from gathering at the transition position between the horizontal belt section 1c and the inclined belt section 1b, a scraper belt assembly 7 is installed above the horizontal belt section 1c, as shown in Figure 7 The scraper belt assembly 7 has a second belt 72 and a scraper 71 moving with the second belt 72. The movement direction of the scraper 71 at the lower half of the second belt 72 is opposite to the movement direction of the belt section at the horizontal belt section 1c. In this way, the seeds rolled down from the inclined belt section 1b can be scraped back, and the uniformity of the seed accumulation on the horizontal belt section 1c is maintained, improving the filling efficiency and filling effect.

[0038] The belt type seed separating mechanism of the present application performs translational rotary motion as a whole. On the one hand, with the cyclic operation of the belt 1, the mold holes 1a pass through the seed storage area in sequence, and the violently moving seeds can fully fill each mold hole 1a, reducing the missing filling phenomenon. On the other hand, after entering the inclined belt section 1b, the rotary action causes the seeds not filled into the mold holes to be shaken off, completing preliminary seed cleaning, and enabling accurate output of a proper number of seeds in a row, ensuring the seeding accuracy and efficiency, and being suitable for precision seeding of the seedling tray.

[0039] The belt type seed separating mechanism of the present application reasonably arranges the structure of the belt 1 with the mold holes 1a and the surrounding structure, and can integrate the seed storage, seed separation and preliminary seed cleaning functions. Compared with the existing seed separating mechanism, the belt type seed separating mechanism is more compact and small.

[0040] Preferably, the support 3 includes a main support 31 and a secondary support 32, and the secondary support 32 can be rotationally adjusted in angle relative to the main support 31. Figure 4As shown, the belt 1 has a first belt roller 41 and a second belt roller 42 at both ends, and the first belt roller 41 and the second belt roller 42 are respectively installed on the main bracket 31 and the sub-bracket 32; the main bracket 31 is respectively installed with a third belt roller 43 and a fourth belt roller 44 at the upper and lower corners of the belt 1.

[0041] Preferably, the main bracket 31 has an upwardly extending arc-shaped fixing portion 31a; the fixing portion 31a has a plurality of fixing holes arranged along an arc-shaped path, or has an arc-shaped through groove 31b; the auxiliary bracket 32 ​​is connected with a fixing screw passing through the fixing hole or the arc-shaped through groove 31b.

[0042] Through the above structure, the inclination angle of the auxiliary bracket 32 ​​can be adjusted to achieve the inclination adjustment of the inclined belt segment 1b, which is convenient for adjusting the initial seed cleaning effect.

[0043] Specifically, if Figure 5 As shown, a transition block 45 is fixed to the inner side of the main bracket 31. The transition block 45 has a vacant portion, forming a movable groove between the main bracket 31 and the transition block 45 to accommodate the end of the auxiliary bracket 32. A flange shaft 46 is also fixed to the main bracket 31, extending from the outer side into the movable groove. The flange shaft 46 establishes a rotational connection between the main bracket 31 and the auxiliary bracket 32. A bearing seat 47 connected to the fourth belt roller 44 is fixed to the inner side of the transition block 45. This rational structural layout allows both the fourth belt roller 44 and the auxiliary bracket 32 ​​to establish a rotational connection with the main bracket 31 without interfering with each other.

[0044] Preferably, there are two third belt rollers 43 , which are respectively placed at the two side edges of the upper turning position of the belt 1 .

[0045] Preferably, if Figure 6 As shown, a plurality of rollers 48 acting on the upper turning position of the belt 1 are installed between the two third belt rollers 43; a first masking unit 49 and a second masking unit 40 are provided corresponding to each of the rollers 48; the first masking unit 49 and the second masking unit 40 are both hollow structures, and both are arranged around the roller 48, and both have a tip facing the horizontal belt segment 1c and the tip facing the inclined belt segment 1b, respectively.

[0046] By providing a plurality of rollers 48 , the belt surface between the two third belt rollers 43 can be effectively supported. The first mask unit 49 and the second mask unit 40 can prevent seeds from two directions from entering under the rollers 48 and causing the rollers 48 to crush the seeds.

[0047] Preferably, the first belt roller 41 is a roller motor, i.e. the belt driving mechanism 2, both ends of which are connected to the main support 31 through the tensioning mechanism 5.

[0048] Preferably, the seed blocking mechanism 6 comprises two side plates 61 located on the left and right sides of the belt 1, and a front plate 62 located on the front side of the horizontal belt segment 1c; the front plate 62 and the two side plates 61 form a U-shaped structure, and each of the lower edges of the three plates is provided with a brush 63.

[0049] Preferably, the upper end of the inclined belt segment 1b is provided with a driven roller brush 9, which can further clean the outside of the type hole 1a, preventing the belt from carrying too many seeds and affecting the seed spacing precision.

[0050] Preferably, the upper end of the inclined belt segment 1b is provided with a plurality of guide hoppers 8, each of which corresponds to a row of type holes 1a on the belt 1.

[0051] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A belt-type seed sorting mechanism for precise seed sorting, comprising a belt (1), a belt drive mechanism (2), and a bracket (3), and further comprising a seed storage area; the surface of the belt (1) is formed with array-distributed shaped holes (1a), and the belt (1) has an inclined belt segment (1b), and the seeds in the shaped holes (1a) are discharged from the upper end of the inclined belt segment (1b); the characteristics are: The belt-type seed separation mechanism can perform translational and rotational motion as a whole; the belt (1) has a horizontal belt segment (1c), and the horizontal belt segment (1c) has a seed blocking mechanism (6), so that the seed storage area is formed on the horizontal belt segment (1c); The bracket (3) comprises a main bracket (31) and a sub-bracket (32), and the sub-bracket (32) can be rotated relative to the main bracket (31) to adjust the angle; the two ends of the belt (1) are respectively provided with a first belt roller (41) and a second belt roller (42), and the first belt roller (41) and the second belt roller (42) are respectively mounted on the main bracket (31) and the sub-bracket (32); A third belt roller (43) and a fourth belt roller (44) are respectively installed on the main bracket (31) at the upper and lower corner positions corresponding to the belt (1); There are two third belt rollers (43), which are respectively placed at the edges on both sides of the upper turning position of the belt (1); A plurality of rollers (48) acting on the upper turning position of the belt (1) are installed between the two third belt rollers (43); a first mask unit (49) and a second mask unit (40) are provided corresponding to each roller (48).

2. The belt-type seed sorting mechanism for precision seed sorting according to claim 1, characterized in that: The main bracket (31) has an arc-shaped fixing portion (31a) extending upward; the fixing portion (31a) has a plurality of fixing holes arranged along an arc-shaped path, or has an arc-shaped through slot (31b); and the auxiliary bracket (32) is connected with a fixing screw passing through the fixing hole or the arc-shaped through slot (31b).

3. The belt-type seed sorting mechanism for precision seed sorting according to claim 1, characterized in that: The first mask unit (49) and the second mask unit (40) are both hollow structures, and are both arranged around the roller (48), and each has a tip facing the horizontal band segment (1c) and a tip facing the inclined band segment (1b).

4. The belt-type seed sorting mechanism for precision seed sorting according to claim 1, characterized in that: The first belt roller (41) is a roller motor, and both ends of the first belt roller are connected to the main bracket (31) via a tensioning mechanism (5).

5. The belt-type seed sorting mechanism for precision seed sorting according to claim 1, characterized in that: The seed blocking mechanism (6) includes two side panels (61) located on the left and right sides of the belt (1), and also includes a front panel (62) located on the front side of the horizontal belt section (1c); the front panel (62) and the two side panels (61) form a U-shaped structure, and a brush (63) is installed on the lower edge of each of the three.

6. The belt-type seed sorting mechanism for precision seed sorting according to claim 1, characterized in that: An active roller brush (9) is installed at the upper end of the inclined belt segment (1b).

7. The belt-type seed sorting mechanism for precision seed sorting according to claim 1, characterized in that: A plurality of guide buckets (8) are installed on the rear side of the upper end of the inclined belt segment (1b), and each guide bucket (8) corresponds to a row of the molded holes (1a) on the belt (1).

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