Sowing device for seedling raising plate

Abstract

The utility model discloses a seeding device for a seedling raising tray, which relates to the technical field of seedling raising equipment and comprises an intermittent conveyor, a lifting mechanism arranged above the intermittent conveyor and a seeding mechanism arranged on the lifting mechanism. The seeding mechanism comprises a plurality of dibbling units which are linearly arranged; the dibbling unit comprises a seed container, a seeding device connected to the bottom of the seed container, a seeding pipe vertically arranged on the side surface of the seed container and communicated with the seeding device, a seeding needle arranged in the seeding pipe, a first electric rod arranged on the seed container and used for driving the seeding needle to move up and down, and a necking rubber pipe arranged at the lower end of the seeding pipe; and the minimum inner diameter of the necking rubber tube is smaller than the diameter of the coated seed. According to the utility model, one coated seed is placed in the seeding pipe at one time by the blanking device, and the coated seed is left in the necking rubber pipe and is ejected out by the seeding needle driven by the first electric rod; when the seeding needle retreats, the necking rubber tube scrapes off moisture and matrix on the surface of the seeding needle, so that the seeding tube is prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seedling raising equipment, and particularly relates to a seeding device for a seedling tray. BACKGROUND

[0002] The pneumatic seed metering device can only seed the coated seeds on the surface of the seed hole substrate, and the seeds still need to be covered again after seeding. Other types such as the vertical disc seed metering device, the horizontal disc seed metering device and the spoon wheel seed metering device can seed the seeds into the substrate soil, but the substrate soil for seedling raising contains a certain amount of water, the outlet of the existing non-pneumatic seed metering device is blocked by the substrate soil after the seeding head is inserted into the seed hole, and the continuous seeding is affected. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the problems in the background art, the utility model provides a seeding device for a seedling tray.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a seeding device for a seedling tray, comprising: an intermittent conveyor, a lifting mechanism arranged above the intermittent conveyor, and a seeding mechanism arranged on the lifting mechanism; the seeding mechanism comprises a plurality of linearly arranged point seeding units; the point seeding unit comprises: a seed container, a seed feeder connected to the bottom of the seed container, a seeding pipe vertically arranged on the side of the seed container and communicated with the seed feeder, a seeding needle arranged in the seeding pipe, a first electric rod arranged on the seed container and driving the seeding needle to move up and down, and a necked rubber pipe arranged at the lower end of the seeding pipe; the minimum inner diameter of the necked rubber pipe is smaller than the diameter of the coated seed.

[0005] Preferably, the seed feeder comprises: a first channel communicated with the bottom of the seed container and capable of accommodating only one coated seed, a hollow disc connected to the lower end of the first channel, a rotating disc piece arranged in the hollow disc, a notch arranged on the side wall of the disc piece and capable of accommodating only one coated seed, and a driving mechanism arranged outside the hollow disc and driving the disc piece to rotate; the lower side wall of the hollow disc is provided with a second channel communicated with the seeding pipe.

[0006] Preferably, the seeding mechanism further comprises: support plates arranged on both sides of all the point seeding units, a support rod arranged between the support plates and penetrating all the seed containers, and the driving mechanism; the driving mechanism comprises: a transmission shaft rotatably arranged between the support plates and connected to all the disc pieces, a servo motor arranged on one of the support plates, and a speed reducer arranged on the servo motor; the transmission shaft is connected to the speed reducer.

[0007] Compared with the prior art, the utility model has the beneficial effects:

[0008] The utility model discloses a seed sowing device for seedling tray, which comprises an intermittent conveyor, a seed sowing mechanism, a seed container, a seed feeder and a seed sowing pipe. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 Figure 1 is a structural schematic diagram of the seed sowing device for seedling tray;

[0010] Fig. 2 Figure 2 is a structural schematic diagram of the point seed unit;

[0011] Fig. 3 Figure 3 is a sectional structural schematic diagram of the point seed unit.

[0012] In the figure: intermittent conveyor 1, seed sowing mechanism 2, point seed unit 3, seed container 4, seed feeder 5, seed sowing pipe 6, seed sowing needle 7, first electric rod 8, necked rubber pipe 9, first channel 10, hollow disc 11, round sheet 12, notch 13, second channel 14, support plate 15, transmission shaft 16, servo motor 17, speed reducer 18, support rod 19, second electric rod 20. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and beneficial effect of the utility model more clear, the preferred embodiments of the utility model will be described in detail below, so as to facilitate the understanding of the technical personnel.

[0014] Please refer to Figs. 1 to 3The utility model provides a kind of seeding device for seedling tray, comprising: intermittent conveyor 1, elevating gear being equipped in the upper of intermittent conveyor 1, seeding mechanism 2 being equipped in the elevating gear;The seeding mechanism 2 includes multiple linearly arranged point seeding unit 3;The point seeding unit 3 includes: seed container 4, lower seed device 5 being connected to the bottom of seed container 4, seeding tube 6 being vertically equipped in the side of seed container 4 and being communicated with lower seed device 5, seeding needle 7 being equipped in seeding tube 6, first electric rod 8 being equipped in seed container 4 and driving seeding needle 7 to move up and down, necking rubber tube 9 being equipped in the lower end of seeding tube 6;The minimum inside diameter of necking rubber tube 9 is less than the diameter of coated seed.Intermittent conveyor 1 is prior art, and its effect is to transport seed hole of seedling tray to the below of seeding tube 6 row by row;Elevating gear drives seeding mechanism 2 to move up and down, and seeding tube 6 is inserted into matrix soil to complete seeding and is pulled out.Lower feeder places a coated seed from seeding tube 6 once, and coated seed is ejected by seeding needle 7 driven by first electric rod 8 in necking rubber tube 9;When seeding needle 7 retreats, necking rubber tube 9 scrapes moisture and matrix on the surface of seeding needle 7, to avoid the blockage of seeding tube 6.

[0015] The lower seed device 5 includes: first channel 10 being communicated with the bottom of seed container 4 and can only accommodate a coated seed to pass through, hollow disc 11 being connected to the lower end of first channel 10, round sheet 12 being rotatably equipped in hollow disc 11, notch 13 being equipped on the side wall of round sheet 12 and can only accommodate a coated seed, driving mechanism being equipped outside hollow disc 11 and driving round sheet 12 to rotate;The lower side wall of hollow disc 11 is equipped with second channel 14 being communicated with seeding tube 6.Coated seed should be kept dry in seed container 4.Notch 13 moves to the right below of first channel 10 when round sheet 12 rotates, and a coated seed falls into notch 13 and is carried to second channel 14, and from second channel 14 into seeding tube 6, and is ejected from necking rubber tube 9 by seeding needle 7.Thus, one seed is sowed once.

[0016] The seeding mechanism 2 further includes: support plate 15 being located on both sides of all point seeding unit 3, support rod 19 being equipped between support plate 15 and penetrating all seed container 4 and the driving mechanism;The driving mechanism includes: transmission shaft 16 being rotatably equipped between support plate 15 and being connected to all round sheet 12, servo motor 17 being equipped on one of support plate 15, speed reducer 18 being equipped on servo motor 17;Transmission shaft 16 is connected with speed reducer 18.Transmission shaft 16 transmits power of servo motor 17 to all round sheet 12, to realize synchronous seeding.

[0017] The lifting mechanism in the embodiment is a second electric rod connected with the frame of the intermittent conveyor 1, two second electric rods are located at two sides of the conveying belt, and the piston rods of the second electric rods are connected with the support plates 15 respectively.

[0018] The utility model discloses still include the PLC controller of control sowing process.

[0019] The utility model discloses a kind of seeding devices for seedling tray uses when:

[0020] First, the control module of servo motor 17 is edited instruction, let servo motor 17 rotate at certain speed, and the time that gap 13 rotates to the second passage 14 place coating seed falls into seeding pipe 6 is the trigger time point of first electric rod 8, first electric rod 8 is pushed down and ejects seed after top seedling needle 7, and retreats;While this time point is also the stop time of intermittent conveyor 1, at this time, seed hole is just below seeding needle 7, second electric rod drives seeding mechanism 2 to move downward, and seeding pipe 6 is inserted into matrix soil, and after completing seeding, seeding mechanism 2 is lifted and pulls out seeding pipe 6;The time that first electric rod 8 triggers is between the time that second electric rod drives seeding mechanism 2 to move downward and the time that seeding mechanism 2 lifts;The time between the next second passage 14 mouth of gap 13 intermittent conveyor 1 will next row seed hole is transported to the just below seeding pipe 6.

[0021] Finally, it is explained that the above preferred embodiments are only used for describing the technical scheme of the utility model and are not limited, although the utility model has been described in detail through the above preferred embodiments, but those skilled in the art should understand that various changes can be made in form and detail without departing from the range defined by the utility model claim book.

Claims

1. A seeding device for a nursery tray, comprising: Intermittent conveyor (1), lifting mechanism provided above the intermittent conveyor (1), seeding mechanism (2) provided on the lifting mechanism; the seeding mechanism (2) comprises a plurality of linearly arranged point seeding units (3); characterized in that: the point seeding unit (3) comprises: a seed container (4), a seed feeder (5) connected to the bottom of the seed container (4), a seeding pipe (6) vertically provided on the side of the seed container (4) and communicated with the seed feeder (5), a seeding needle (7) provided in the seeding pipe (6), a first electric rod (8) provided on the seed container (4) to drive the seeding needle (7) to move up and down, and a necked rubber pipe (9) provided at the lower end of the seeding pipe (6); the minimum inner diameter of the necked rubber pipe (9) is smaller than the diameter of the coated seed.

2. The seeding device for a nursery tray of claim 1, wherein, The seed feeder (5) comprises: a first channel (10) communicated with the bottom of the seed container (4) and capable of accommodating only one coated seed, a hollow disc (11) connected to the lower end of the first channel (10), a rotating disc (12) provided in the hollow disc (11), a notch (13) provided on the side wall of the disc (12) and capable of accommodating only one coated seed, and a driving mechanism provided outside the hollow disc (11) to drive the disc (12) to rotate; the lower side wall of the hollow disc (11) is provided with a second channel (14) communicated with the seeding pipe (6).

3. A seeding device for a nursery tray as claimed in claim 2, wherein, The seeding mechanism (2) further comprises: support plates (15) located on both sides of all the point seeding units (3), a support rod (19) provided between the support plates (15) and penetrating all the seed containers (4), and the driving mechanism; the driving mechanism comprises: a transmission shaft (16) rotatably provided between the support plates (15) and connected to all the discs (12), a servo motor (17) provided on one of the support plates (15), and a speed reducer (18) provided on the servo motor (17); the transmission shaft (16) is connected to the speed reducer (18).

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