JPH0353887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a covering soil supply device for a seeding box seeding device.

(Prior art) The conventionally known Japanese Utility Model Publication No. 46-25338 describes a "material feed belt in a cutting machine" in which a V-shaped inclined surface is provided on the surface of the belt at a predetermined interval to bring the cut material to the center. A structure in which guide ridges are formed is described. Also, in Utility Model Application Publication No. 55-164954,
In ``Conveyor Belt for Carrying Eggs'', a structure is described in which V-shaped inclined guide protrusions are formed on the surface of the belt at predetermined intervals to bring eggs to the center.

Note that the devices shown in FIGS. 1 and 2 are publicly known. In the figure, A is the soil supply amount adjusting device attached to the soil covering supply device, B is the adjusting body, C is the soil covering, D is an endless feeding belt, and E is the space between the tip of the adjusting body B and the feeding belt D. , F is the hopper of the covering soil supply device,
G is a small clod.

(Problem to be solved by the invention)
- Since the device described in Publication No. 164954 is not a soil covering supply device for seeding equipment, it can be used satisfactorily with the structure described in each publication, but if this is used as a covering soil supply device for seeding equipment, various problems arise. occurs.

For example, in a conventional seeding device's covering soil supply device, the amount of covering soil C supplied to the seedling growing box is very small, and is adjusted to a thickness of several millimeters that barely covers the seedlings.

However, if rice-grain-sized soil lumps are mixed in the covering soil C in the hopper F, the soil lumps G are
It gets caught in the gap E, and streaks form on the top surface of the soil C of the finished ivy seedling box. In addition, the covering soil C is fed out by the feeding belt D, but at this time, the adjustment body B is
Since it is formed in a flat plate shape, the covering soil C escapes not only in the feeding direction but also in the left and right directions of the adjustment body B, and has the problem of leaking to the left and right sides of the feeding belt D.

(Means for Solving the Problems) Therefore, the present invention provides a hopper 10 for storing covering soil.
In the case where an endless feeding belt 48 is provided for feeding out the covering soil in the hopper 10, the belt 4
8, there are scraping protrusions 54 arranged at predetermined intervals and perpendicular to the direction of belt movement, and Vs for bringing the covering soil to the center.
A mold inclined guide protrusion 55 is formed, and the scraping protrusion 54
The V-shaped inclined guide protrusion 55 is used as a covering soil supply device in a seedling box seeding device in which all parts are at the same height.

(Example) To explain an example of the present invention with reference to the drawings, 1 is a transfer table for the seedling raising box 2, which is formed long in the transfer direction,
It is placed on the floor by supporting legs 3 provided at desired positions. A plurality of guide rolls 4, 4 are attached to the transfer table 1 at a maximum interval that allows the seedling growing box 2 to be moved. The guide rolls 4, 4 are connected by a chain 5 and rotated at a constant speed by a motor 6.

When the seedling raising box 2 is placed on the supply side 7 at one end of the transfer table 1, it is moved toward the take-out side 8 at the other end by constant rotation of the guide rolls 4, 4, and is taken out at the take-out side 8. . A bed soil supply device 9 is provided at a position above the transfer table 1 near the supply side 7 . The bed soil supply device 9 is formed by a hopper 10, a feed belt 11, and a soil supply amount adjustment device 12, and is configured to supply bed soil 1 to the seedling box 2.
Supply 3. The feeding belt 11 is connected to the motor 6
Or rotated by a dedicated motor other than motor 6. The bed soil 13 in the hopper 10 is transported by the feeding belt 1
1 and the supply amount is adjusted by the soil supply amount adjustment device 12, and the soil is fed out.

A presser roll 2 is provided below the feed belt 11.
9 is provided. The presser roll 29 is attached to the seedling raising box 2
A free rubber roll that presses the rear end downward. When the presser roll 29 is pushed up by the seedling growing box 2, it presses the seedling growing box 2 downward by the rod spring 30, and when it is not engaged with the seedling growing box 2, it is pressed by the rod spring so that it is suspended by its own weight. 30 with some play.

A rotating brush 3 is provided on the conveying direction side of the bed soil supply device 9.
4 is pivoted. The rotating brush 34 is connected to a desired one of the guide rolls by a chain, rotates in the opposite direction to the conveying direction, and contacts the upper surface of the seedling box 2;
Level the surface to a certain depth.

As shown in FIG. 3, in a position near the guide rolls 4, 4 in the area where the presser roll 29 and the rotating brush 34 are located, a presser roll receiving roll 36 is provided slightly forward of the presser roll 29, and similarly, A rotating brush receiving roll 37 is provided slightly closer to the take-out side 8 than the rotating brush 34. That is, the presser roll 29 is provided above between the guide roll 4 and the presser roll receiving roll 36, and similarly, the rotating brush 34 is provided above between the guide roll 4 and the rotating brush receiving roll 37. It will be done. Also, a presser roll receiving roll 36 and a rotating brush receiving roll 37 are provided.
may be connected to the chain 5 in the same way as the guide rolls 4,4.

A free roller 38 is provided at an upper position immediately in front of the rotating brush 34. Free roller 38
lightly contacts the surface of the soil bed 13 to flatten it. That is, although the rotating brush 34 can level the soil to a certain depth, it cannot flatten the surface, so the surface of the bed soil 13 is flattened by pressing lightly with the free roller 38.

An irrigation nozzle 39 is provided in front of the free roller 38. The irrigation nozzle 39 is connected to a pump or a faucet for irrigation.

A rice seed supply device 40 is provided in front of the irrigation nozzle 39. The rice seed supply device 40 is formed by a hopper 41 and a delivery roll 42. A paddy guide 43 is attached to the rear side of the feed roll 42. The paddy guide 43 is formed of a semi-circular plate, and the unwinding roll 4
2 rotates in the opposite direction to the conveyance direction of the seedling raising box 2.
When the delivery roll 42 rotates in the opposite direction, the rice seeds are discharged forward, so that the seeds can be uniformly sown on the front end of the seedling raising box 2. In front of the rice seed supply device 40, a rice grain removing brush 44 for sweeping off the rice seeds placed on the upper surface of the edge of the seedling raising box 2 is provided.

An irrigation nozzle 45 is attached to the front side of the rice removal brush 44. A motor 6 is provided in front of the irrigation nozzle 45, and a soil covering supply device 46 is provided in front of the motor 6.

The soil covering supply device 46 includes a hopper 47, a feed belt 48, and a soil supply amount adjustment device 49. A lower end edge 51 on the feeding side of the hopper 47 is provided at a higher position than the feeding belt 48 with a gap 52 therebetween, and a shaft 16 is provided at a position farther away from the outer side of the lower end edge 51 on the feeding side, and is attached to the shaft 16. Member 17
Install. The attachment member 17 is made to protrude toward the lower edge 51, and the adjustment body 14 is attached to its tip. The mounting member 17 in the embodiment has a tip bent into an L shape to form an abutment part 18, and the adjustment body 14 is applied to the abutment part 18 and welded. The adjusting body 14 has a full length in the width direction of the lower end of the hopper 47, and the lower end is formed into a curved portion 15 having a radius r around the shaft 16. The mounting member 17 is attached to the front and rear walls 19, 20 of the soil covering supply device 46 by the shaft 16, and is rotatable. Fix the U-shaped mounting portion 23 to be attached. The threaded rod 2
A threaded portion 24 is carved on the upper end side of 1, and an adjustment knob 25 is screwed into the threaded portion 24. The adjustment knob 25 has an annular recess 26 formed on the outer peripheral surface of its lower end, and a support member 27 is fitted into the annular recess 26.
The other end is fixed to the soil covering supply device 46 with bolts 28. That is, since the adjustment knob 25 is fixed in its position by the support member 27, when the threaded rod 21 is moved up and down by rotating the adjustment knob 25, the mounting member 17 fixed to one end of the threaded rod 21 moves the shaft 16. It rotates around the center and adjusts the curved portion 15. 60 is a clod of earth.

The feeding belt 48 is an annular endless belt made of rubber that rotates in the direction of arrow A, and has side edges 53, 53 formed on both sides to prevent the covering soil 56 from overflowing, and has a plurality of scraping protrusions on its surface. 54 and a guide protrusion 55 are formed. The scraping protrusion 54 is formed in a direction perpendicular to the rotating direction of the feed belt 48 and is mainly used for scraping the covered soil 56, and the V-shaped inclined guide protrusion 55 is formed in a direction perpendicular to the rotation direction of the feed belt 48. The belt 48 is formed so as to widen from the center toward
(Figure), when the feeding belt 48 rotates and scrapes out the covering soil 56, the covering soil 56 is brought to the center of the feeding belt 48.

The scraping protrusion 54 and the V-shaped inclined guide protrusion 55 are formed to have the same height at all parts.

The feeding belt 48 has a V-belt 5 on one side of its inner surface.
7, and an annular V groove 59 formed in the feeding rolls 58, 58 around which the feeding belt 48 is wound.
The belt 57 is engaged to prevent the feed-out belt 48 from swinging laterally while the feed-out belt 48 is rotating.

A soil removal brush 50 is provided on the front side of the soil covering supply device 46.

(effect) Next, we will discuss the effect.

When the seedling growing box 2 is placed on the supply side 7 of the transfer table 1 and the motor 6 is energized, the guide roll 4 rotates via the chain 5, and the seedling growing box 2 is conveyed toward the take-out side 8. When the seedling raising box 2 reaches the lower part of the bed soil supply device 9, it is transported toward the take-out side 8 by the guide roll 4, and comes into contact with the presser roll 29 which is not subjected to the elastic action of the bar spring 30, and the presser roll 2
9 lifts up lightly, and the tip of the seedling raising box 2 is pressed by the presser roll 2.
9, the presser roll 29 and the bar spring 30 engage and act, and the bar spring 30 then presses the presser roll 2.
9 is urged downward to press the seedling raising box 2 downward.

While being pressed by the presser roll 29, the seedling raising box 2 is
The seedling raising box 2 is supplied with the bed soil 13 by the bed soil supply device 9, and the seedling raising box 2 that has received the bed soil 13 is supplied with the bed soil 13 by the rotary brush 3.
4, excess soil on the surface of the bed soil 13 is scraped off by the rotating brush 34, the bed soil surface is leveled, and excess soil is removed backwards. At this time, the presser roll 2
9 presses the rear end of the seedling raising box 2 against the guide rolls 4, 4, so that bed soil can be smoothly supplied to the seedling raising box 2 without stagnation caused by the rotating brush 34.

Floor soil 13 whose surface has been made uniform with a rotating brush 34
When passing below the free roller 38,
The rice is lightly pressed down and flattened by the free roller 38, and when it passes under the irrigation nozzle 39, it is irrigated, and the rice seed is supplied by the seed rice supply device 40.

Since the feed roll 42 of the rice seed supply device 40 rotates in the opposite direction to the conveyance direction, the rice seeds fall forward, so that the rice seeds are often supplied to the front end of the seedling box 2. In this case, a part of the seed rice is also supplied to the upper part of the edge of the seedling raising box 2, but this is not supplied to the grain removing brush 4.
It is scraped off by 4. And the irrigation nozzle 45
When passing through the lower part of the seedling box 2, a chemical solution such as Danikol Tachigaren is supplied, and the seedling raising box 2 reaches the soil covering supply device 46.

The seedling growing box 2 has reached the lower part of the soil covering supply device 46
is supplied with covering soil 56 by the rotation of the feed belt 48. Since the thickness of the covering soil 56 supplied to the seedling raising box 2 by the covering soil supply device 46 is preferably approximately 3 to 5 mm, the distance between the lower end of the curved portion 15 and the upper surface of the feeding belt 48 is adjusted to be very narrow. Ru. For this reason,
Even if the covering soil 56 to be introduced into the hopper 47 is sorted by a sieve, if there are some soil clods 60 that cannot be sorted out, when the soil is scraped out by the feeding belt 48, the curved portion 15 of the front adjustment body 14 The soil clod 60 is moored at the tip, but since it is crushed and scraped out by the scraping protrusion 54 formed on the feeding belt 48 and the curved portion 15, the covering soil 56 is evenly supplied without causing uneven soil covering. Further, when the covering soil 56 is scraped out by the feeding belt 48, the V-shaped inclined guide protrusion 55 formed on the feeding belt 48 has all parts at the same height.
Since the covering soil 56 is scraped out so as to gather at the center of the delivery belt 48, it does not overflow from the left and right sides of the delivery belt 48. In addition, the lower end of the adjusting body 14 of the soil supply amount adjusting device 49 is curved around the shaft 16, and by rotating the adjusting knob 25, the threaded rod 21 is moved up and down. When the adjusting body 14 attached to the lower end is rotated about the shaft 16 and moved up and down, the curved part 15 at the lower end of the adjusting body 14 opens and closes at a constant angle with respect to the soil 13. In addition, since the curved portion 15 is bent in the feeding direction, the covering soil 56 also acts accurately on fine adjustment of the opening degree of the curved portion 15.

The soil on the upper surface of the seedling raising box 2 covered with soil by the soil covering supply device 46 is swept away by a soil removing brush 50.

(Effect) In the conventionally known Japanese Utility Model Publication No. 46-25338, there is a V-shaped inclined guide on the surface of the belt that moves the cut material to the center at a predetermined interval in the "material feeding belt in a cutting machine". A structure in which ridges are formed is described. Also, in Utility Model Application Publication No. 55-164954,
In ``Conveyor Belt for Carrying Eggs'', a structure is described in which V-shaped inclined guide protrusions are formed on the surface of the belt at predetermined intervals to bring eggs to the center.

However, the devices described in Japanese Utility Model Publication No. 46-25338 and Japanese Utility Model Application Publication No. 55-164954 are not soil-covering devices for seeding devices, so if they are used as soil-covering devices for seeding devices, various problems will occur. A problem arises. For example, in a conventional seeding device's covering soil supply device, the amount of covering soil C supplied to the seedling nursery box is very small, and is adjusted to a thickness of several millimeters that barely covers the seedlings. If rice-grain-sized soil clods are mixed in, the soil clods G will get caught in the gap E, and streaks will form on the top surface of the soil covering C of the finished ivy seedling box. In addition, the covering soil C is fed out by the belt D.
At this time, the adjusting body B
is formed into a flat plate shape, so the covering soil C escapes not only in the feeding direction but also in the left and right direction of the adjustment body B,
There is a problem that leakage occurs to the left and right sides of the feeding belt D.

However, the present invention is provided with a hopper 10 that accommodates covering soil and an endless feeding belt 48 that feeds out the covering soil in the hopper 10. A scraping protrusion 54 that is perpendicular to the direction and a V-shaped inclined guide protrusion 55 that brings the covering soil to the center are formed, and the scraping protrusion 54 and the V-shaped inclined guide protrusion 55 are all at the same height for raising seedlings. Since this is a covering soil supply device for a box seeding device, even though the scraping protrusion 54 and the V-shaped inclined guide protrusion 55 are provided, both parts are at the same height, so they can be used evenly. acts on,
The scraping protrusion 54 solves the problem of the formation of streaks by scraping out the soil clod, and the V-shaped inclined guide protrusion 55 brings the soil to the center to prevent the problem of soil spilling from the left and right sides.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a known soil supply amount adjusting device;
Fig. 2 is an explanatory diagram showing the flow of covering soil in a known example, Fig. 3 is an overall side view of the seeding device of the present invention, and Fig. 4 is a diagram of the soil supply amount adjusting device of the present invention in a closed state. , FIG. 5 is a state diagram of the soil supply amount adjusting device of the present invention in an open state, FIG. 6 is a partial side view of the soil supply amount adjusting device, FIG. 7 is a perspective view of the feeding belt, and FIG. 8 is a perspective view of main parts. Explanation of symbols, 1...transfer table, 2...seedling box, 3
... Support leg, 4 ... Guide roll, 5 ... Chain,
6... Motor, 7... Supply side, 8... Extraction side,
9...Soil supply device, 10...Hopper, 11...
... Feeding belt, 12 ... Soil supply amount adjustment device, 13
...bed soil, 14...adjustment body, 15...curved part, 1
6... Shaft, 17... Mounting member, 18... Contact part,
19...Front wall, 20...Back wall, 21...Threaded rod,
22...Cotter pin, 23...Mounting portion, 24...Threaded portion, 25...Adjustment knob, 26...Annular recess, 27
... Support member, 28 ... Bolt, 29 ... Presser roll, 30 ... Bar spring, 34 ... Rotating brush, 3
6...Receiving roll for presser roll, 37...Receiving roll for rotating brush, 38...Free roller, 3
9... Irrigation nozzle, 40... Seed supply device, 41
...Hopper, 42...Feeding roll, 43...Paddy guide, 44...Paddy removal brush, 45...Irrigation nozzle, 46...Soil covering supply device, 47...Hopper, 48...Feeding belt, 49... Soil supply amount adjustment device, 50... Soil brush, 51... Lower edge, 5
2... Between, 53... Side edge, 54... Scraping protrusion,
55...V-shaped inclined guide ridge, 56...Soil covering, 57
... V belt, 58 ... Scraping roll, 59 ... Annular V groove, 60 ... Soil clod.

Claims (1)

[Claims] 1 In a device equipped with a hopper 10 that accommodates covering soil and an endless feeding belt 48 that feeds out the covering soil in the hopper 10, scrapers are provided on the surface of the belt 48 at predetermined intervals and perpendicular to the belt movement direction. In the seedling box seeding device, a protruding ridge 54 and a V-shaped inclined guide ridge 55 for bringing the covering soil to the center are formed, and the scraping ridge 54 and the V-shaped slanted guiding ridge 55 are all at the same height. Covering soil supply device.