JPH0711105U - Seeding equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the sealability of the seed delivery portion from the seed reservoir 1 to the sowing drum 2 to ensure smooth seed delivery and prevent seed damage. A seed transfer member 10 that divides the bottom of a seed reservoir 1 and extends toward the seeding drum 2 side is made swingable around a swing shaft 1a, and a lower contact piece 1b is placed on the surface of the seeding drum 2. The holding piece 7 that faces the contact piece 1b and rotates around the shaft 7a and urges the contact piece 1b upward through the coil spring 71.
With the operating body 7 having b, the rotating drum 2 is pressed and contacted with the rotating drum 2 at all times to eliminate the gap between the seed transfer portions and prevent seed jamming.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a so-called drum-type sowing device for sowing seeds of vegetables such as pumpkin and cucumber in pots and the like that are divided into nursery beds and trays.

[0002]

[Prior art]

 Conventionally, this seed-seeding device is disclosed in Japanese Patent Application Laid-Open No. 55-108201 and, as shown in FIG. 4, a hopper-shaped seed reservoir V for storing seeds a and a seed source V for connecting the inside to a suction source. The rotary seeding drum D for holding the seed a received from the delivery port J in the lower part of the reservoir V on the suction hole B is provided, and the seed a held in the suction hole B portion is disposed below the seeding drum D by the scraper S. The seedlings are dropped into the seedlings in the nursery box K, which is conveyed by the conveyor C.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned publication, since the delivery port J of the seed a is simply exposed on the surface of the sowing drum D, the sealing property is poor, and the seed a enters into the empty space in the delivery part and is clogged. There is a problem that the seeds a are damaged or the seeds a are damaged, and it is difficult to deliver the smooth seeds, and there is a problem that the seeds are damaged and the growth is poor.

The object of the present invention is to improve the sealability of the seed delivery part from the seed reservoir to the sowing drum, to ensure the smooth delivery of seeds, and to prevent the seeds from being damaged so that good seed growth can be achieved. The point is to provide a seeding device capable of performing the above.

[0005]

[Means for Solving the Problems]

 Therefore, in order to achieve the above object, as shown in FIG. 1, a seed reservoir 1 for accumulating seeds, and a seed drum 2 for holding seeds received from the seed reservoir 1 on the surface and performing sowing with rotation are provided. In the provided seeding device, the seed reservoir 1 is partitioned, and a seed delivery member 10 extending from the seed reservoir 1 to the seed drum 2 side is elastically provided on the surface of the seed drum 2 via an elastic member 71. Was pressed into contact with.

[0006]

[Action]

 By elastically pressing the seed delivery member 10 onto the surface of the sowing drum 2, it is possible to eliminate a gap between the seed delivery portion 1 and the seed delivery portion 2 at which the seed is delivered, and the sealing property of this portion is improved. Can be improved. As a result, when the seeds are transferred from the seed reservoir 1 to the seeding drum 2, it is possible to prevent the seeds from getting into the gaps and clogged. Further, since the seed delivery member 10 does not contact the surface of the seeding drum 2 fixedly but elastically presses it through the elastic member 71, the seeding drum 2 rotates smoothly. Is also secured.

[0007]

【Example】

 1 and 2 shows a seeding device in which a seeding body 100 is provided on an upper portion of a transporting device 4 having a transporting roller 41, in which a seed transfer member 10 and a front partitioning member having a slanted bottom portion are provided. The sprocket 61 has a wall 11 and a seed reservoir 1 for accommodating seeds a to be inserted from the opening / closing door 12, a drum main body 20 connected to the suction blower 5 via a suction hose 50, and a large number of suction holes 21 on the surface thereof. , 62 and a rotary seeding drum 2 which is interlocked with the drive motor 6 via the endless belt 63.

Outside the seeding drum 2, there is arranged a blow-out nozzle 3 which blows out the air obliquely downward from the upper position of the drum 2 toward the seed reservoir 1 and along the tangential direction of the seeding drum 2. A blower hose 53 extending from a main exhaust port 51 of the suction-type blower 5 and an auxiliary exhaust port 52 arranged in parallel is connected to the inlet of the blow-out nozzle 3, and the air is blown from each nozzle port 31 so that When a plurality of seeds adhere to the suction hole 21, the seed with the weaker suction force is wiped off, and only one seed is sucked into one suction hole 21. Below the seeding drum 2, an elastic body 81 composed of a coil spring is urged to bring the tip end into contact with the seed drum 2 at a position slightly displaced to the front side in the rotation direction from the lowest point of the seeding drum 2. Are installed.

In this way, the seed drum 2 is rotated by a predetermined angle by one rotation of the drive motor 6 so that each pot 91 of the tray 9 held in the seedling raising box 90 is regularly and horizontally seeded with one seed a. There is. In FIG. 1, 64 is a one-rotation detector of the motor 6, and 42 is a position detector of the seedling raising box 90 that is conveyed.

With the above configuration, the bottom of the seed reservoir 1 is partitioned, and the delivery member 10 extending from the seed reservoir 1 to the seeding drum 2 side is made swingable about the swing shaft 1a, and the lower contact is made. Operation in which the piece 1b is made to face the surface of the seeding drum 2 and the contact piece 1b is rotated around the shaft 7a and has a holding piece 7b which biases the piece 1b upward through an elastic member 71 formed of a coil spring. By the body 7, the rotating drum 2 is pressed and contacted at all times. On the other hand, at the time of collecting seeds, by operating the operation piece 7c of the operation body 7 upward, a space is provided between the operation body 7c and the seeding drum 2 so that the seeds can be collected in a seed bag or a seed box which is received below. Leave.

Further, the transfer member 10 is provided with a vibrator 6 composed of a motor having an eccentric cam 61, and the transfer member 10 is given appropriate vibration so that the seed a can be smoothly delivered. It is preferable that an antistatic cloth be attached to the contact surface of the contact piece 1b provided on the delivery member 10 to prevent the seeding drum 2 from being charged by friction.

With the above configuration, it is possible to eliminate a gap between the seed reservoir 1 and the seed drum 2 for transferring seeds without hindering the smooth rotation of the seed drum 2, and the seed reservoir 1 to the seed drum 2 can be eliminated. When the seeds are handed over to the seeds, it is possible to prevent the seeds from getting into the gaps and causing clogging.

By the way, in the above, one rotation of the drive motor 6 rotates the seeding drum 2 by a predetermined angle to complete the sowing of one stroke corresponding to the entire length of the tray 9, and the next sowing is also the first time. Since it is performed under the same conditions, the displacement angle of the suction hole 21 with respect to the scraper 8 does not change. In this case, as shown in FIG. 3, even when different kinds of trays 9 having different opening widths d of the pots 91 and different tray pitches pt are exchanged and used, the outer diameter of the seeding drum 2 is changed or the seeding drum 2 is driven. It would be complicated to replace the sprockets 61 and 62 interposed in the interlocking portion between the motor 6 and the seeding drum 2. Therefore, even when the tray pitch pt changes and the roll pitch pr at which the suction holes 21 are opened correspondingly changes, the outer diameter R of the seeding drum 2 does not change, and the sprockets 61 and 62 are commonly used. In order to unify the roll rotation angle ω of the seeding drum 2 required for one stroke, the partial angle θ at which the suction holes 21 are opened is set to an appropriate value as shown in Table 1 below.

[0014]

[Table 1]

Thus, under the uniform condition of the outer diameter R of the seeding drum 2 = 140 mm and the roll rotation angle ω = 480 degrees, the partial angle θ for opening the suction hole 21 is determined as shown in Table 1 above. The roll pitch pr can be made to substantially match the tray pitch pt, and the seeding drum 2 itself, which has a different hole form of the suction holes 21 depending on the type of tray, needs to be replaced. Since the diameters can be the same and the same sprockets 61 and 62 can be used, the replacement work can be facilitated and satisfactory seeding can be performed corresponding to each tray.

[0016]

[Effect of device]

 As described above, according to the present invention, it is possible to eliminate the gap at the portion for transferring seeds from the seed reservoir 1 to the sowing drum 2, and to improve the sealing property of this portion, so that seeds can be transferred from the seed reservoir 1 to the sowing drum 2. At the time of delivery, it is possible to prevent seeds from getting into the gaps and clogged, so that the seeds can be delivered from the seed reservoir 1 to the seeding drum 2 smoothly, and the seeds can be prevented from being damaged. You can do good childcare.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a seeding device according to the present invention.

FIG. 2 is a sectional view from the front.

FIG. 3 is an explanatory view for explaining how to determine an arc angle of a suction hole in a seeding drum.

FIG. 4 is a side sectional view showing a conventional seeding device.

[Explanation of symbols]

1; Seed reservoir, 10; Delivery member, 2; Seeding drum, 7
1; Elastic member

Claims (1)

[Scope of utility model registration request] 1. A seeding device comprising a seed reservoir (1) for accumulating seeds, and a seeding drum (2) for holding seeds received from the seed reservoir (1) on a surface and performing sowing with rotation, A seed delivery member (1) that partitions the seed reservoir (1) and extends from the seed reservoir (1) toward the seeding drum (2).
0) is brought into elastic pressure contact with the surface of the seeding drum (2) via an elastic member (71).