JPH027603B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a device for sowing seeds of ultrafine particles, such as seeds of Chinese cabbage, cabbage, or cauliflower.

(Prior art) Conventionally, when transplanting vegetables, a seedling raising box with many squares of about 5 cm square is filled with bedding soil, seeds are sown on the bedding soil to grow seedlings, and the seedlings are grown from within the squares with the bedding soil. The seeds are extracted and used as seedlings with soil, which are then transplanted using a transplanter.

(Problems to be Solved by the Invention) When seeds are sown on the bed soil within the squares of the seedling raising box, 1 to 3 seeds should be sown precisely in the center of the squares. I never sow roses. If you sow in bulk, you will have to do a lot of thinning to get one (or two) plants.

However, if the seeds are large like radish,
It is not very difficult to manufacture a device that sows one to three seeds at a time, but since seeds such as Chinese cabbage are made of microparticles, it is quite difficult. Therefore, the present invention
This is a seeding device that can achieve the above objective.

In addition, in the case where seeds are sown in a seedling nursery box by adsorption, the adsorbed seeds may be so strongly adsorbed that they may not easily be separated. In particular, rapeseeds have a lot of oil, so they stick together and are very difficult to separate. Therefore, we have devised ways to improve detachability.

(Means for solving the problem) Therefore, in the present invention, a seed box 5 having an open top surface is provided in the center of a horizontal table 3 that is long in the left and right direction, and seedling boxes 2 are placed on both left and right sides of the horizontal table 3. A seed suction box 20 is provided above the horizontal table 3 and slides over the seed box 5 from one side of the horizontal table 3 to reciprocate laterally to the other side. , a seedling box seeding device configured such that a suction hole 37 is formed on the bottom surface of the seed suction box 20, and the seeds in the seed box 5 are adsorbed by the suction hole 37 and sown in the squares 4 of the seedling raising box 2. In this method, an inlet 39 through which outside air flows is formed at a predetermined position of the seed suction box 20, and the inlet 39 is provided with a valve 44 that is opened and closed by impact with solenoids 43 and 43'. This is a device.

(Example) The present invention will be described with reference to the drawings. Reference numeral 1 denotes a frame, and the frame 1 is provided with a horizontal stand 3 having a placing section on which a seedling raising box 2 is placed. The height of the horizontal table 3 is that of a general desk, and is set to such a level that a worker can easily hold and place the seedling box 2 thereon.

On both sides of the horizontal table 3, a placing section on which the seedling raising box 2 can be placed is formed. The horizontal table 3 is formed almost flat except for the central portion.

The seedling raising box 2 is made of synthetic resin and has a diameter of approximately 5
Square cells 4 of about cm size are provided at a ratio of about 5 vertically and 10 horizontally (the number is arbitrary, but the ratio of vertical and horizontal is usually 1:2).

A seed box 5 having a predetermined width L is provided at the center of the horizontal table 3. The seed box 5 has a special shape, and is a vertical cylinder 6 that is rectangular when viewed from above.
and a bottom member 7 that moves up and down within the vertical cylinder 6. The vertical tube 6 formed by sheet metal processing of a thin metal plate is provided so that its upper end 8 always projects upward by α from the upper edge 9 of the seedling growing box 2 placed on the horizontal table 3.

The upper end 8 of the vertical tube 6 is completely horizontally cut to form an opening 10, and rubber-like scrapers 11, such as car wipers, are provided at both upper ends 8 on the left and right sides.
is installed. The scraping pieces 11 function to scrape off seeds, but also serve as a part of the seed box 5 because seeds are stored between the scraping pieces 11. Said scraper 1
The upper edge 12 of 1 is formed to become gradually thinner, and the left and right scrapers 11 have exactly the same height XX.

The vertical tube 6 has the same dimensions from top to bottom, and a square-shaped bottom member 7 is tightly fitted inside.

The upper end of a vertical piece 13 is fixed to the lower surface of the center of the bottom member 7, and a vertical rack gear 14 is attached to the vertical piece 13. Rack gear 14
A pinion gear 15 is meshed with the pinion gear 15, a shaft 16 of the pinion gear 15 protrudes forward, and a manual handle 17 is fixed thereto. Therefore, manual handle 1
When the bottom member 7 is manually rotated, the bottom member 7 moves up and down.

The upper opening portion formed by the inner surface of the vertical tube 6 and the upper surface of the bottom member 7 serves as a seed box 5 for storing seeds. Hoppers 18 and 18' for collecting spilled seeds are attached to the left and right sides of the seed box 5, respectively. The upper edges 19, 19' of the recovery hoppers 18, 18' are formed at the same height as the upper end 8 of the vertical cylinder 6. As mentioned above, the seedling raising box 2 is
They are placed symmetrically at the outer positions of the collection hoppers 18, 18', respectively.

A specially shaped seed suction box 20 is provided above one of the seedling growing boxes 2, 2 placed on the left and right sides. The size of the seed suction box 20 is the same as that of the seedling raising box 2.
It is about the same. The seed suction box 20 is a square box, and in particular, its bottom surface 21 is completely horizontal. Further, the bottom surface 21 is formed of a high-quality stainless steel plate so as not to be charged with static electricity.

The seed suction box 20 is moved horizontally from one side of the horizontal table 3, and its bottom surface 21 rubs the upper part of the wiper-like scraping piece 11, and the seed suction box 20 is further moved laterally, and the seedling box 2 placed on the other side is moved sideways. Reach directly above and stop. In this case, the bottom surface 21 is mounted at such a height that it always comes into contact with the scraping piece 11 and moves horizontally.

Arms 22, 22' for suspending the seed suction box 20
rollers 23, 23' are attached to the
The rollers 23, 23' roll on rails 24 provided horizontally on the frame 1 in the left-right direction. The seed suction box 20 is moved by a motor 25 attached directly or indirectly to the seed suction box 20.

The motor 25 is attached to a support member 26 attached to the top surface of the seed suction box 20.
The shaft 27 is fixed so as to be the axis in the longitudinal direction, and a pinion gear 28 is fixed to the shaft 27, and the pinion gear 28 is meshed with a horizontal rack gear 29 in the left and right direction attached to the frame 1.

When the main switch installed at a desired position on the frame 1 is turned on, the motor 25 is energized and the seed suction box 20 moves laterally. Move switch 3 to frame 1 at the end of the direction movement.
0.30' is provided.

On the upper surface of the seed suction box 20, a contact plate 31 having a larger area than the seed suction box 20 is overlapped and abutted, and the contact plate 3
1 and the seed suction box 20 are fastened together with screws 32a. The reason why the seed suction box 20 is fixed by separately abutting the plate 31 is that manufacturing becomes easier if various devices are first attached to the plate 31 and then the seed suction box 20 is attached.

Both left and right ends of the plate 31 protrude laterally than the seed suction box 20, and leveling tools 33, 33' are attached to the protrusions 32b, 32c, respectively.
Install. The leveling tools 33, 33' are metal round bars 3
A coil wire 35 is loosely fitted around the outer periphery of 4. Both the metal round rod 34 and the coiled wire 35 come into contact with the upper surface of the inside of the seed box 5 to level it, but at this time, the seeds are also moved in the front and back direction to some extent by rotation due to the contact resistance of the coiled wire 35.

Both ends of the metal round bar 34 are bent at right angles to form a bent part 36, and the upper end of the bent part 36 is inserted from below into the small hole formed in the protruding parts 32b, 32c, and the upper end is fixed with a screw. On the bottom surface 21 of the seed suction box 20, there is a suction device that adsorbs only 2 to 3 (sometimes only 1 grain) ultrafine particles such as Chinese cabbage seeds at positions corresponding to the centers of the squares 4 of the seedling raising box 2. A hole 37 is formed.

The suction hole 37 is formed so that the seed fits completely inside it. Two suction ports 38, 38' and a plurality of inflow ports 39 are opened in the upper surface of the seed suction box 20. Two suction ports 38,3
The location of 8' is specially designed so that the seeds can be sucked in evenly with the same suction force through the numerous suction holes 37 formed in the bottom surface 21 of the seed suction box 20.

In other words, the dimensions of the seedling nursery box 2 are at a ratio of 1:2 horizontally, so when viewed from the front and back direction, it is the center of the left and right sides, but when viewed from the left and right, it is divided into two halves, the front half and the rear half. They are each formed to open in the center. The two suction ports 38, 38' are connected by one suction tube 40 as shown in FIG.
A bellows 42 connected to a suction blower 41 is connected to the center of 0.

A large number of inflow ports 39 formed in the seed suction box 20...
are opened in a straight line in the front and rear direction, and valves 44 that are moved up and down by impact by two solenoids 43 and 43' at the front and rear are respectively attached to the upper surfaces thereof. Solenoids 43, 43' are the contact plate 3
A connecting rod 47 is attached to each actuator 46, 46' of the solenoids 43, 43', and each valve 44 is connected to the connecting rod 47. When installed and energized to the solenoids 43, 43', multiple inlets 39
are formed so that they open simultaneously at the same time.

The reason why the inflow ports 39 are simultaneously opened by the solenoids 43 and 43' is to apply an impact to the seed suction box 20 to improve the separation of the seeds.

Since the seeds mentioned above are the raw materials for rapeseed oil, their epidermis itself contains a large amount of oil. Therefore, if you apply strong suction to it, it will not only be absorbed by the suction force but also by the oil content. Due to adhesion,
It does not easily fall under its own weight.

The present invention solves this problem through the use of solenoids 43, 43'.

(effect) Next, we will discuss the effect.

When seeds such as Chinese cabbage, cabbage, or cauliflower are fully stored in the seed box 5 and the motor 25 is energized, the pinion gear 28 rotates to move the seed suction box 20 laterally. When the seed suction box 20 moves laterally, the leveling tools 33, 3 attached to the tip thereof
3', the upper surface of the seeds in the seed box 5 is leveled, and when the bottom surface 21 of the seed suction box 20 comes into sliding contact with the upper surface of the seeds, the seeds are absorbed by the suction holes 37 formed in the bottom surface 21.

Then, when moving further to the right, it hits the switch 30, and the seed suction box 20 stops at the top of the seedling raising box 2.
The valve 44 that closes the inlet 39 is moved upward by energizing the solenoids 43 and 43', and the impact causes the seeds adsorbed in the suction hole 37 to fall into the square 4 of the seedling box 2. .

Then, when the manual handle 17 is rotated to move the bottom member 7 upward as the number of seeds in the seed box 5 decreases, the seeds in the seed box 5 can be successively attracted and sown until they are exhausted.

(Effects) The present invention provides a seed box 5 whose top surface is open at the center of a horizontal table 3 that is long in the left-right direction, and
A placing part on which the seedling box 2 can be placed is formed on both left and right sides of the horizontal table 3, and at a position above the horizontal table 3, it slides from one side of the horizontal table 3 over the seed box 5 and reciprocates to the other side. A seed suction box 20 that moves laterally is provided, and a suction hole 37 is formed in the bottom of the seed suction box 20.
7, the seedling box seeding device is configured to adsorb the seeds in the seed box 5 and sow them in the squares 4 of the seedling box 2. Therefore, it is possible to absorb ultrafine particles such as Chinese cabbage, cabbage, or cauliflower seeds. It can be made into a sowing device suitable for seeds.

Further, an inlet 39 through which outside air flows is formed at a predetermined position of the seed intake box 20, and the inlet 39 is provided with a valve 44 that is opened and closed by impact with solenoids 43 and 43'. Inlet 3
9 is opened and closed in an impactful manner by the solenoids 43 and 43'. Therefore, even if oil-rich seeds such as rapeseed are adhered to each other due to their oil content, they can be reliably separated.

[Brief explanation of drawings]

Figure 1 is an overall front view, Figure 2 is a longitudinal sectional front view of the main part from Figure 1 with the seedling box removed, Figure 3 is a left side view of Figure 1, and Figure 4 is the left longitudinal side view of Figure 1. 5 is a plan view, FIG. 6 is a front view of the leveling tool, and FIG. 7 is a perspective view of the seed box. Explanation of symbols, 1... Frame, 2... Seedling box,
3...Horizontal stand, 4...Match, 5...Seed box, 6...
... Vertical cylinder, 7 ... Bottom member, 8 ... Upper end, 9 ... Upper edge, 10 ... Opening, 11 ... Scraping piece, 12 ... Upper edge, 13 ... Vertical piece, 14 ... Rack gear, 15
... Pinion gear, 16 ... Shaft, 17 ... Manual handle, 18, 18' ... Collection hopper, 19,
19'... Upper edge, 20... Seed inhalation box, 21...
Bottom surface, 22, 22'... Arm, 23, 23'...
Roller, 24...Rail, 25...Motor,
26... Support member, 27... Shaft, 28... Pinion gear, 29... Horizontal rack gear, 30, 30'
...switch, 31...plate, 32a...screw,
32b, 32c...protrusion, 33, 33'...leveling tool, 34...metal round bar, 35...coiled wire,
36...Bending portion, 37...Suction hole, 38, 38'
...Suction port, 39...Inflow port, 40...Suction tube,
41... Suction blower, 42... Bellows, 43,4
3'...Solenoid, 44...Valve, 45,4
5'... Projection piece, 46, 46'... Operator, 47...
Continuation.

Claims (1)

[Claims] 1 A seed box 5 having an open top surface is provided in the center of a horizontal table 3 that is long in the left and right direction, and a placing part on which a seedling box 2 can be placed is formed on both left and right sides of the horizontal table 3, and the horizontal table 3 is 3 is provided with a seed suction box 20 that slides on the seed box 5 from one side of the horizontal table 3 and moves back and forth laterally to the other side, and a suction hole 37 is formed in the bottom surface of the seed suction box 20. In the seedling box sowing device configured to suck the seeds in the seed box 5 through the suction holes 37 and sow them in the squares 4 of the seedling box 2, outside air is introduced into a predetermined position of the seed suction box 20. This seeding device for a seedling box has an inlet 39 for inflow, and the inlet 39 is provided with a valve 44 that is opened and closed by impact with solenoids 43 and 43'.