Seed feeding device

Abstract

The present invention provides a seed feeding device, comprising: a hopper box and a vibrating feeder; the vibrating feeder comprises a vibrating plate, the seeds pass through the hopper box and fall onto the vibrating plate, a stacked structure is formed in the vibrating plate, and the vibrating feeder performs feeding; the hopper box comprises an adjusting pad and a pin group, the adjusting pad adjusts the height of the hopper box, and the pin group supports the seeds that have not fallen out of the hopper box. The present invention adjusts the number of seed layers stacked on the vibrating feeder, and the weight of the seeds that have not fallen out is borne by the pin group, thereby ensuring that the load of the vibrating feeder is within a specific range; the present invention decelerates the seeds through the pin group during the falling process, so that the speed of the seeds when they fall onto the vibrating feeder is not too high; the present invention also allows the seeds to pass through multiple outlets of the feeding hopper with equal spacing, and pass through the pin groups staggered in the hopper box, changing the falling position during the falling process, so that the seeds are evenly distributed on the vibrating feeder.

Description

Technical Field

[0001] The invention relates to the field of seed sorting, and in particular to a seed feeding device. Background Art

[0002] In the field of seed sorting, the existing feeder generally adopts a funnel structure, with the upper end feeding and the lower end connected in series to the linear vibration feeder. This existing structure has the following problems:

[0003] Problem 1: Seeds continue to accumulate on the linear vibrating feeder. As the amount of accumulated seeds increases, the load of the linear vibrating feeder will change over time. Especially when the load is large, its vibration frequency and feeding amount will change significantly, resulting in unstable sorting speed.

[0004] Problem 2: The funnel is directly connected to the feeding plate, causing the seeds to fall freely onto the vibrating plate, resulting in seed splashing;

[0005] Question 3: For the conical funnel structure, the material will be unevenly distributed on the material tray, resulting in different material falling amounts in different areas of the slide, affecting the improvement of the sorting throughput and the sorting effect. Summary of the invention

[0006] The invention provides a seed feeding device to solve the problems of the existing feeders.

[0007] To achieve the above object, the present invention adopts the following specific technical solutions:

[0008] A seed feeding device comprises: a funnel box and a vibrating loader; the vibrating loader comprises a vibrating plate, the seeds pass through the funnel box and fall onto the vibrating plate to form a stacked structure in the vibrating plate; the funnel box comprises an adjusting pad and a pin group, the adjusting pad adjusts the distance between the funnel box and the vibrating loader, and the pin group supports the seeds that have not fallen out of the funnel box.

[0009] Preferably, the pin group includes at least 5 rows of pins, all the pins are arranged in parallel, and the extension direction of each pin is perpendicular to the vertical direction; the pins in each row are staggered, and the row spacing and the spacing of the pins in each row are determined according to the shape of the seeds; the cross-section of the pins is circular or elliptical.

[0010] Preferably, the funnel box also includes a box body; the pin group is fixed to the inner wall of the box body, and the two ends of the pins are respectively connected to the opposite inner walls of the box body; one end of the adjustment pad is fixed to the outer wall of the box body, and the other end is connected and fixed to the vibration loader.

[0011] Preferably, the vibrating loader also includes a linear vibrator, which performs periodic vibration to drive the vibration plate to vibrate.

[0012] Preferably, it also includes an upper hopper, through which the seeds pass and enter the hopper box; the upper hopper has a plurality of outlets, and the spacing between the plurality of outlets is equal.

[0013] Preferably, the spacing between the multiple outlets is less than 1 / 2 of the height of the box, and the bottom ends of the outlets are located inside the box.

[0014] The present invention can achieve the following technical effects:

[0015] (1) The height of the hopper box is adjustable. The number of seed layers stacked on the vibrating feeder can be adjusted by changing the height. The weight of the seeds that have not fallen out of the hopper box is borne by the pin group, ensuring that the load of the vibrating feeder is always within a specific range without large fluctuations, thereby improving the uniformity of feeding;

[0016] (2) The seeds are decelerated by the pin group during the falling process, so that the speed when they fall on the vibrating feeder will not be too high, preventing the seeds from splashing and affecting the sorting;

[0017] (3) The seeds pass through multiple equally spaced outlets of the upper hopper and through the staggered pin groups in the funnel box, changing their falling positions during the falling process, reducing the concentration of seeds, making the seeds evenly distributed on the vibrating loader, and improving the sorting throughput and sorting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an isometric view of a seed feeding device according to an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of a hopper box according to an embodiment of the present invention;

[0020] Figure 3 is a side view of a seed feeding device according to an embodiment of the present invention;

[0021] Figure 4 is a graph showing the relationship between the number of pin rows contained in the pin group and the speed at which the seeds fall onto the vibrating feeder;

[0022] Figure 5 This is a schematic diagram of the falling position of seeds.

[0023] The reference numerals include: a hopper box 1 , a vibrating loader 2 , a hopper 3 , a pin group 11 , a box body 12 , a vibration plate 21 , and a linear vibrator 22 . DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0025] As shown Figure 1-3 in the figure, a seed feeding device includes a funnel box 1 and a vibrating feeder 2; the vibrating feeder 2 includes a vibrating disk 21. Seeds pass through the funnel box 1 and fall onto the vibrating disk 21, forming a stacked structure in the vibrating disk 21. The funnel box 1 includes an adjusting pad and a pin group 11. The adjusting pad adjusts the distance between the funnel box 1 and the vibrating feeder 2, and by adjusting this distance, the number of layers of the formed stacked structure is changed. Assuming the seeds are long and strip-shaped, with the length and width being a1 and b1 respectively, and the distance between the pins at the lowest end of the funnel box 1 and the vibrating disk 21 is L, then when the value range of L is adjusted to a1 < L < 1.5a1, it can ensure that there is at least one layer of seeds laid flat on the vibrating disk 21 at all times, and at the same time, it can ensure that there is no overlap of more than two layers. When L > 2a1, the number of layers of the bottom structure can increase, and the feeding amount can increase; the pin group 11 supports the seeds that have not fallen out of the funnel box 1, so that the load on the vibrating disk 21 is the weight of the seeds forming the stacked structure; through the adjusting pad and the pin group 11, the load on the vibrating disk 21 is stable and adjustable.

[0026] In an embodiment of the present invention, the pin group 11 includes at least 5 rows of pins. All the pins are arranged in parallel, and the extending direction of each pin is perpendicular to the vertical direction. Figure 4 The figure shows the relationship between the number of rows of pins included in the pin group obtained by fitting the experimental data and the speed of the seeds falling onto the vibrating feeder. It can be seen from the figure that the falling speed of the seeds decreases with the increase in the number of rows of pins. When the number of rows of pins is greater than or equal to 5, the falling speed of the seeds tends to be stable and the speed is small. Therefore, at least 5 rows of pins are selected; the pins in each row are staggered. Through the staggered pin structure, the falling points of the seeds are homogenized, so that the landing positions of the seeds falling from the same position are approximately normally distributed; the row spacing of each row of pins and the spacing between the pins included are determined according to the shape of the seeds; the cross-section of the pins is circular or elliptical, reducing the friction between the pins and the seeds and preventing the seeds from being blocked.

[0027] In an embodiment of the present invention, the funnel box 1 further includes a box body 12; the pin group 11 is fixed on the inner wall of the box body 12, and both ends of the pins are connected to the opposite inner walls of the box body 12; one end of the adjusting pad is fixed on the outer wall of the box body 12, and the other end is connected and fixed to the vibrating feeder 2. The box body 12 fixes the pin group 11, and by adjusting the height of the box body 12 through the adjusting pad, the distance from the pin group 11 to the vibrating disk 21 is further adjusted.

[0028] In an embodiment of the present invention, the vibrating feeder 2 further includes a linear vibrator 22. The linear vibrator 22 performs periodic vibration, driving the vibrating disk 21 to vibrate. When the vibrating disk 21 vibrates, the stacked seeds slide out of the vibrating disk 21 due to inertia, completing the feeding.

[0029] In one embodiment of the present invention, an upper hopper 3 is further included, and the seeds pass through the upper hopper 3 and enter the funnel box 1; the upper hopper 3 has a plurality of outlets, and the spacing between the plurality of outlets is equal, such as Figure 5 As shown, by setting multiple outlets, the seeds can be dropped more evenly, and multiple approximately normally distributed drop conditions can be superimposed to form a uniform drop, thereby reducing the concentration of seeds.

[0030] In one embodiment of the present invention, the spacing between multiple outlets is less than 1 / 2 of the height of the box body 12. The spacing between the outlets affects the landing point of the seeds. If the spacing between the two outlets is too large, the uniformity of the seeds will be reduced. The bottom end of the outlet is located inside the box body 12 to prevent excessive seeds from overflowing the funnel box 1.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0033] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A seed feeding device, characterized in that: include: A hopper box and a vibrating loader; the vibrating loader includes a vibrating plate, the seeds pass through the hopper box and fall onto the vibrating plate, and a stacked structure is formed in the vibrating plate; the hopper box includes an adjusting pad and a pin group, the adjusting pad adjusts the distance between the hopper box and the vibrating loader, the pin group supports the seeds that have not fallen out of the hopper box, ensures that the load of the vibrating loader is within a specific range, and keeps the load of the vibrating plate at the weight of the seeds forming the stacked structure, the pin group includes at least 5 rows of pins, all of which are arranged in parallel, and the extension direction of each pin is perpendicular to the vertical direction; each row of pins is staggered; The funnel box also includes a box body; It also includes an upper hopper, through which the seeds pass and enter the funnel box; the upper hopper has a plurality of outlets, the plurality of outlets are spaced at equal intervals, and the spacing between the plurality of outlets is less than 1 / 2 of the height of the box body.

2. The seed feeding device according to claim 1, characterized in that: The row spacing of each row of pins and the spacing of the pins are determined according to the shape of the seeds; the cross section of the pins is circular or elliptical.

3. The seed feeding device according to claim 2, characterized in that: The pin group is fixed to the inner wall of the box, and the two ends of the pins are respectively connected to the opposite inner walls of the box; one end of the adjustment pad is fixed to the outer wall of the box, and the other end is connected and fixed to the vibration feeder.

4. The seed feeding device according to claim 1, characterized in that: The vibrating loader also includes a linear vibrator, which performs periodic vibration to drive the vibration plate to vibrate.

5. The seed feeding device according to claim 1 or 3, characterized in that: The bottom end of the outlet is located inside the box.

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