JPH027601B2 - - 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, in transplanting vegetables, a seedling raising box with many squares of approximately 5 cm square is filled with bed soil, seeds are sown on the bed soil to grow seedlings, and the seedlings are grown from within the squares with the bed 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 extremely fine particles, it is quite difficult.

The present invention is a seeding device that can achieve the above object.

The present invention is a device that adsorbs seeds and sows them in seedling boxes, and is an improvement in the adsorption of seeds.

(Means for Solving the Problem) Therefore, 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 and right direction, and a seedling box 2 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 to have a suction hole 37 formed on the bottom surface of the seed suction box 20, and to suck the seeds in the seed box 5 through the suction hole 37 and sow them in the squares 4 of the seedling raising box 2. The seed box 5 is formed by a vertical tube 6 and a bottom member 7 that moves up and down within the vertical tube 6,
The bottom member 7 is configured to move upward intermittently every time the seed suction box 20 moves horizontally on the seed box 5, or once for every multiple horizontal movements of the seed box 5. This is the configuration of a seeding device for seedling raising boxes.

(Example) The present invention will be explained with reference to the drawings.
What has been shown up to the figure shows the basic structure that is the premise of the present invention, and 1 is a frame, and the frame 1 is provided with a horizontal table 3 having a placing part 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 back direction, and valves 44 that are moved up and down by two solenoids 43 and 43' at the front and rear are respectively attached to their upper surfaces. The solenoids 43, 43' are respectively fixed to protrusions 45, 45' that protrude upward from the contact plate 31, and a connecting rod 47 is spanned over each actuator 46, 46' of the solenoids 43, 43'. Each valve 44 is attached to the connecting rod 47, and the solenoid 43,
When electricity is applied to 43', the plurality of inlets 39 are formed to open simultaneously.

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 and 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 structure shown in FIGS. 1 to 7 described above is the structure that is the premise of the present invention, and FIGS. 8 to 11 show the structure of the gist of the present invention with improvements.

When the seeds in the seed suction box 20 are adsorbed and sown in the seedling raising box 2, the number of seeds in the seed box 5 gradually decreases. , the bottom member 7 is adjusted up and down by rotating the manual handle 17. Since this operation using the manual handle 17 is very troublesome, this invention has been improved in the present invention shown in FIGS. 8 to 11, in which the bottom member 7 is automatically moved upward.

That is, an engaging member 49 having left and right ends 48, 48' bent upward is attached to, for example, the front portion of the seed suction box 20. The engagement member 49 is formed by bending a steel band or the like and is fixed by welding. The engaging member 49 is configured to pass not above the seed box 5 but above the front side of the seed box 5 when viewed from above.

A roller 50 is provided at a portion through which the engaging member 49 passes, and which descends against the engaging member 49. The roller 50 is pivotally attached to the upper end of a vertically movable rod 51, and the vertically movable rod 51 is supported by a vertical cylinder 52, and a spring 53 is attached to the middle so that it always protrudes at a constant height. It is formed. A pawl 55 is pivotally attached to the lower end of the vertically movable rod 51 by a shaft 54, and when the pawl 55 is engaged with a ratchet wheel 56 and the pawl 55 moves downward together with the vertically movable rod 51, the pawl wheel 56 rotates intermittently. I'll do what I do.

Reference numeral 57 denotes a shaft of a ratchet wheel 56, and a gear 59 having a much smaller number of teeth 58 protruding from the outer periphery than the number of pawls 55 is fixed to the shaft 57. Gear 59 has teeth 58
A gear 6 formed with far more teeth 60 than the number of teeth 60
1 and fixes the gear 61 to the shaft 16.

(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 adsorbed by the suction holes 37 formed in the bottom surface 21. At that time, the bottom member 7 of the seed box 5 automatically moves upward to ensure that the seeds are attracted.

That is, when the seed intake box 20 moves to the right in FIG. The pawl 55 is lowered against the elastic force of the vertically movable rod 51 and pivoted to the lower end of the vertically movable rod 51.
The ratchet wheel 56 is rotated by one pawl.

Further, when the seed suction box 20 moves back, the ratchet wheel 56 is similarly rotated by one pawl by the action of the upwardly bent left end 48' of the engaging member 49.

When the ratchet wheel 56 rotates, the gear 59, which is fixed to its shaft 57 with a key, is also rotated by one pawl. The teeth 58 of the gear 59 are engaged with the teeth 60 of the gear 61, as shown in FIG.
Since the number of teeth 60 is 1 to 4, the rotation is reduced to 1/4 and transmitted to the gear 61.
The pinion gear 15 fixed to the shaft 16 of the gear 61 with a key is rotated to move the rack gear 14 that meshes with the pinion gear 15 upward, thereby causing the bottom member 7 to move laterally and the seed suction box 20 to move horizontally on the seed box 5. The seed box 5 is automatically moved upward every time the seed box 5 is moved horizontally, or once for each horizontal movement of the seed box 5, and the seeds are pressed against the seed suction box 20 to ensure that they are adsorbed.

When the seed box 20 moves further to the right, it hits the switch 30, and the seed suction box 20 stops at the top of the seedling box 2 and sows the seedlings, thereby ensuring repeated sowing until all the seeds in the seed box 5 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 22 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 sowing device is configured to suck the seeds in the seed box 5 and sow them in the squares 4 of the seedling box 2. Therefore, the seedling box sowing device is configured to absorb the seeds in the seed box 5 and sow them in the squares 4 of the seedling box 2. Seeds in the box 5 can be adsorbed and sown in the squares 4 of the seedling raising box 2.

The seed box 5 is formed by a vertical tube 6 and a bottom member 7 that moves up and down inside the vertical tube 6.
This is because the seed suction box 20 moves up intermittently every time the seed box 5 moves horizontally on the seed box 5, or at a rate of once per multiple horizontal movements of the seed box 5. When the seed box 20 faces the seed box 5, the seeds are automatically pressed against the bottom surface of the seed suction box 20 and are surely adsorbed, thereby achieving the effect of ensuring reliable sowing.

[Brief explanation of drawings]

Figures 1 to 7 show the basic structure of the present invention. 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, and Figure 3 is a front view of the main part from Figure 1 with the seedling box removed. The figure is a left side view of Figure 1, Figure 4 is a left vertical side view of the same, and Figure 5 is a left side view of Figure 1.
The figure is a plan view, FIG. 6 is a front view of the leveling tool, FIG. 7 is a perspective view of the seed box, FIGS. 8 to 11 show the structure of the present invention, and FIG. Partial view of the car, Figure 9 is a front view, Figure 10 is a front view of main parts, Figure 11
The figure is a plan view of the main parts. 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...
Connecting rod, 48, 48'... left and right ends, 49... engaging member, 50... roller, 51... vertically movable rod, 52...
...Shaft tube, 53...Spring, 54...Shaft, 55...
Pawl, 56...Rawl wheel, 57...Shaft, 58...Teeth, 5
9...gear, 60...teeth, 61...gear.

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 seeding device configured to suck the seeds in the seed box 5 through the suction hole 37 and sow them in the squares 4 of the seedling box 2, the seed box 5 is connected to the vertical tube 6 and the vertical tube. 6 and a bottom member 7 that moves up and down within the bottom member 7.
A seeding box seeding device configured to move upward intermittently every time the seed suction box 20 moves horizontally on the seed box 5, or at a rate of once per multiple horizontal movements of the seed box 5. .