JPH029762B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a seedling seeding machine for reliably sowing seeds in a seedling nursery in transplant cultivation.

[Conventional technology and its problems]

BACKGROUND ART As a general trend in current agricultural work, particularly in seedling raising technology, it is well known that seedling raising uses paper tubes for raising seedlings, so-called paper pots, which are integrally formed with a large number of cylinders shaped like a butterfly. This work of sowing seeds one by one into a large number of paper tubes for raising seedlings has traditionally been done manually, which is extremely inefficient and uneconomical, and there is a need for mechanization.

In recent years, seeding machines such as vacuum suction method, spoon scraping method, and nozzle scraping method have been developed.
The vacuum method causes defects due to clogging, the occurrence of multiple grains of 2 to 3 grains depending on the suction position, and the irregularity of the sowing fall position due to variations in dropping.The spoon method and nozzle method cause defects due to instability during raking. There are drawbacks such as the occurrence of grains, multiple grains, and the uncertainty of the sowing fall position due to variations in falling, so the purpose of single grain in one cylinder is not achieved and it is not widely used. There is a demand for the development of a machine.

[Means used to solve problems and their effects]

The seedling seedling seeder of the present invention has the following configuration in order to solve the above-mentioned problems of the conventional technology. That is, the seeding machine of the present invention has seed box 5.
By closing the lower opening surface of the sowing cylinder 7 and the seed control roller 6, one seed 19 can be reliably stored in the seed storage hole 8 of the sowing cylinder 7.

In addition, a seed forced fall roller 13 is provided inside the seeding cylinder 7, and the seeding cylinder 7 is rotated at the same time as the seeding cylinder 7 is rotated. It is designed so that it protrudes into the seed storage hole 8 when the seed is dropped.

In this way, the present invention forcibly drops the seeds 19 in the seed storage hole 8 of the sowing cylinder 7 to eliminate any remaining seeds 19.

(Description of Examples) Examples of the present invention shown in the drawings will be described below.

First, each member will be explained.

1...V belt conveyor 2, vertical frame 4, 4',
A machine frame provided with an electric motor 17, etc. 2... Two V-belt conveyors 3 for conveying the seedling raising device 3... A seedling raising device formed in a butterfly shape.

4, 4'... Vertical frame on which the seed box 5, seed control rubber roller 6, and shaft 11 are fixed or pivotally supported.

5... Seed box fixed to the vertical frames 4, 4' and whose lower opening surface is closed by the circumferential surface of the seeding cylinder 7.

6... A seed control rubber roller that is pivotally supported by the vertical frames 4 and 4', contacts the upper surface of the peripheral body of the seeding cylinder 7 in front of the seed box 5, and rotates in reverse.

7... A seeding cylinder that is pivotally supported on the shaft 11 and has a large number of seed storage holes 8 at regular intervals in the circumferential body.

8... A large number of seed storage holes provided at regular intervals in the seeding cylinder 7.

9, 9'... Seed guide plates attached to the front and back surfaces of the seeding cylinder 7 that holds the seeds 19 accommodated in the seed accommodation hole 8.

10...An internal gear fixed to the inner surface of one side of the seeding cylinder 7.

11...A shaft which is fixed at both ends to the vertical frames 4, 4', and which fixes bearings 12, 12' which pivotally support the seeding cylinder 7 and which pivotally support the seed forced drop roller 13.

12, 12': Bearings fixed to the shaft 11 and pivotally supporting the seed forced drop roller 13.

13...Bearing 12,1 fixed to shaft 11
A seed forced drop roller is pivotally supported at 2'.

13': A large number of protruding rods fixed to the seed forced fall roller 13 and projecting from the seed storage hole 8 at regular intervals.

14...A small gear fixed to the seed forced fall roller 13 and meshing with the internal gear 10 fixed to the inner surface of one side of the seeding cylinder 7.

15, 15': Gears that drive and rotate the seed control rubber roller 6 through the intermediate shaft with the power of the electric motor 17.

16...A gear that drives and rotates the seeding cylinder 7 through the intermediate shaft using the power of the electric motor 17.

17...An electric motor that drives the V-belt conveyor 2, the seed control rubber roller 6, and the seeding cylinder 7.

18...A clutch lever that operates a clutch that switches the power of the electric motor 17.

19...Seed.

20, 20', 20'', 20...Electric motor 17
A chain that transmits power.

21...A clutch that transmits the power of the electric motor 17 to the seed control rubber roller 6 and the seeding cylinder 7.

22...Success plate on which the seedling raising device 3 is placed.

Each of the above members is constructed as follows.

A machine frame 1 has two V-belt conveyors 2 on its upper surface for transporting seedling growers 3, and a pair of vertical frames 4,
4' are fixed on the left and right.

A seed box 5 is fixed to the upper part of the vertical frames 4, 4', and a seed control rubber roller 6 to which a driving gear 15 is fixed is pivoted so as to be located at the front lower part of the seed box 5, as shown in FIG. Both ends of a shaft 11 are fixed to the intermediate portion of the vertical frames 4, 4' as shown in FIG.

A seeding cylinder 7 is pivotally supported on the shaft 11 at a position that closes the lower opening surface of the seed box 5, and is also in contact with a seed control rubber roller.

(Fig. 4) As shown in Fig. 4, the circumferential body of the sowing cylinder 7 has a large number of seed storage holes 8 at regular intervals, and the seeds are sown at the position where the seeds fall from the lower part of the seed control rubber roller 6 on the surface of the sowing cylinder 7. A seed guide plate 9 is provided up to just below the cylinder 7, and the seed guide plate 9
A seed guide plate 9' is provided on the back surface of the seed box 5 from the lower opening surface of the seed box 5 to just below the sowing cylinder 7 where the seeds fall.

Further, as shown in FIG. 2a, an internal gear 10 is fixed to the inner surface of one side of the seeding cylinder 7, and a driving gear 16 is fixed to the outer surface of one side.

Inside the seeding cylinder 7, a seed forced fall roller 13 having a large number of protruding rods 13' supported by bearings 12 and 12' fixed to the left and right sides of the shaft 11 is provided directly below.

A small gear 14 is fixed to one side of the shaft of the seed forced fall roller 13, and is meshed with an internal gear 10 fixed to the inner surface of one side of the seeding cylinder 7.

The protruding rod 13' of the seed forced fall roller 13 is the fourth
As shown by the dotted line in the figure, it is provided at a position where the seeds fall, and which protrudes from the many seed receiving holes 8 of the sowing cylinder 7.

The operating order will be explained below.

Two V-belt conveyors 2 are driven by the rotation of the electric motor 17.

The receiving plate 22 on which the butterfly-shaped seedling raising device 3 is placed is conveyed to the V-belt conveyor 2 which has started.

The receiving plate 22 on which the seedling grower 3 is mounted pushes down the clutch lever 18 located directly below the seeding cylinder 7.

When the clutch lever 18 is actuated, the clutch 21 engages and the seed control rubber roller 6 and seeding cylinder 7 begin to rotate.

By the rotation of the seeding cylinder 7, the seeds 19 in the seed box 5 are accommodated in the seed receiving hole 8 provided in the peripheral body of the seeding cylinder 7 and sent forward. (FIG. 4) The seeds 19 in the seed storage holes 8 further come into contact with the seed control rubber roller 6 rotating in the opposite direction in the front, and the excess seeds 19 are thrown out and stored one seed at a time in each hole. (FIG. 4) Seeds 19 accommodated one by one in each hole are transferred to a lower seed drop position while being held by seed guide plates 9, 9' provided on the front and back sides of the body of the sowing cylinder. (Figure 4) Seeds 19 start rotating at the same time as the seeding cylinder 7 rotates at the seed falling position directly below the seeding cylinder 7, and the seeds 19 move to protrude from the seed storage hole 8 directly below the seeding cylinder 7. Seed forced drop. The seeds are pushed down by the protruding rod 13' of the roller 13, and sowing of one seed at a time in one cell of one seedling nursery is completed.

At the same time when the seedling raising device 3 that has completed sowing passes directly under the sowing cylinder 7, the clutch lever 18 is raised and the clutch 21 is switched to stop the rotation of the seed control rubber roller 6 and the sowing cylinder 7.

In this way, the seeding work is completed.

〔Effect of the invention〕

(a) The lower opening surface of the seed box 5 is connected to the seeding cylinder 7 and the seed control roller 6 that rotates in the opposite direction.
Since the seed accommodating hole 8 is closed, each seed 19 can be reliably accommodated one by one.

(b) Projection rod 1 attached to seed forced fall roller 13
Since the seeds 19 housed in the seed storage hole 8 are forcibly dropped at the seedling hole 3', all the seeds 19 are reliably supplied to each cell of the seedling raising device 3 one by one.

(c) The shaft 11 of the seeding cylinder 7 is fixed to the vertical frames 4, 4', and the seeding cylinder 7 is connected to the shaft 11 via bearings b, b'.
It is designed to rotate on top.

Therefore, the small gear 14 fixed to the seed forced drop roller 13 meshes with the internal gear 10 carved on the inner surface of the seeding cylinder 7, so that the seed forced drop roller 13 rotates at the same time, and its protruding rod 13' It is inserted correctly when the seed receiving hole 8 is brought to the lowest position facing the seedling nursery 3.

If the shaft 11 rotates relative to the vertical frames 4, 4', the bearings 12, 12' of the seed forced drop roller 13 cannot be fixed in a fixed position, and installation directly below the seed forced fall roller 13 is impossible. .

The present invention was completed by focusing on fixing the shaft 11 of the seeding cylinder 7 to the vertical frames 4, 4'.

As described above, it is possible to reliably sow one seed at a time in each cell of the seedling raising device 3, eliminating loss of seedling raising devices, and eliminating the trouble of supplementary sowing and seed collection.

In addition, the work of thinning out the seeds can be omitted, and the yield of seeds is also high, making it possible to carry out assembly line operations.

[Brief explanation of drawings]

Fig. 1: A perspective view of the seedling seedling seeding machine of the present invention, Fig. 2: A front view of the main parts of the present invention, Fig. 2a: A sectional view of the internal gear 10 portion of Fig. 2, Fig. 3: Cross-sectional view of the main parts of the present invention, Figure 4...Detailed cross-sectional view of the main parts of the present invention 1: Machine frame, 2: V-belt conveyor, 3: Seedling nursery, 4, 4': Vertical frame, 5: Seed box,
6: Seed control rubber roller, 7: Seeding cylinder,
8: Seed storage hole, 9, 9': Seed guide plate, 1
0: Internal gear, 11: Shaft, 12, 12': Bearing, 13: Seed forced fall roller, 13': Protruding rod:, 14: Small gear, 15, 15': Gear (seed control rubber roller drive), 16: Gear (seeding cylinder drive), 17: Electric motor, 18: Clutch lever, 19: Seed, 20, 20', 20'', 2
0: Chain (drive transmission to each part), 21: Clutch, 22: Receiving plate.

Claims (1)

[Scope of Claims] 1. A pair of vertical frames 4, 4' are fixed on the left and right sides to a machine frame 1 on which two V-belt conveyors 2, 2 for transporting a seedling raising device 3 are provided. , 4', and the lower opening surface of the seed box 5 is closed by a seeding cylinder 7 and a seed control rubber roller 6 that slides in contact with the seeding cylinder 7 while rotating in the opposite direction. Both ends of the shaft 11 are fixed to the vertical frames 4, 4', and the circumferential body of the sowing cylinder 7 has a large number of seed receiving holes 8 at regular intervals. Seed guide plates 9 and 9' are provided up to just before the bottom of the seeding cylinder 7 at the falling position, and the seeding cylinder 7
An internal gear 10 is fixed to the inner surface of one side, and a shaft 1 is fixed to the inside of the seeding cylinder 7.
A forced seed drop roller 13 is provided at the bottom, which is rotatably supported by bearings 12 and 12' fixed on the left and right sides of the seed drop roller 1. A small gear 14 is fixed to one side of the shaft of the forced seed drop roller 13. The seedling cylinder 7 rotates and is meshed with an internal gear 10 fixed to the inner surface of one side of the seeding cylinder 7, and the protruding rod 13' of the seed forced drop roller 13 moves to a position facing the seedling raising device 3 when the seeding cylinder 7 rotates. The clutch lever 18 is provided to protrude into the lowermost seed storage hole 8 and starts driving the seeding cylinder 7 and the seed control rubber roller 6.
Below the seeding cylinder 7 is a V-belt conveyor 2,
2. A seeder for a seedling nursery, characterized by being provided so as to protrude from 2.