JPH0369481B2 - - Google Patents

Description

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

(Prior Art) Conventionally, there is a transfer table F in which a plurality of guide rolls G for horizontally transporting the seedling box A are provided at regular intervals, and a bed soil supply device that supplies the bed soil B provided on the transfer table F. A rotary brush C comprising a rotary brush D and a rotating brush C for leveling the surface of the soil in the seedling box A provided on the side of the transfer table F is well known (see FIGS. 1 and 2).

In addition, the conventionally known Japanese Utility Model Publication No. 51-12345 discloses a transfer table in which a plurality of guide rolls for transversely transporting seedling boxes are provided at regular intervals, and a bed soil provided on the transfer table. a bed soil supply device, a fixed brush for leveling the surface of the bed soil in the seedling growing box provided on the transfer table side, and a presser roll for pressing down the seedling growing box from above, provided on the lower side of the transfer table of the bed soil feeding device. The related position of the fixed brush and the presser roll is described in such a manner that the fixed brush acts in a state where the seedling growing box is pressed by the presser roll.

Furthermore, the conventionally known Japanese Utility Model Publication No. 58-6273 describes that the guide rolls below the rotating brush have narrower intervals.

(Problem to be solved by the invention) Rotating brush C of the device shown in FIGS. 1 and 2
does not work unless it is pressed against the seedling box A with considerable pressure. Therefore, there was a problem that the rear end E of the seedling raising box A was lifted by the rotating brush C.

In this regard, the device described in Utility Model Publication No. 12345/1983 presses the front and rear of the brush with press rolls, which solves the problem of the rear end of the seedling box being lifted up by the rotating brush, but Since it is provided on the downstream side of the device in the transport direction, there is a problem that the length of the entire seeding device becomes long. Further, since the fixed brush is in sliding contact with the upper surface of the bed soil, soil adheres to the brush, and the presser roll must be of a driven rotation structure, making the structure complicated.

Furthermore, the brush described in Japanese Utility Model Publication No. 58-6273 is not provided with a presser roll, so the position of the rotating brush is shifted, and strong pressure cannot be applied.

(Means for Solving the Problems) Therefore, the present invention provides a transfer table 1 in which a plurality of guide rolls 4 for transversely transporting a seedling growing box 2 are provided at regular intervals, and a transfer table 1 provided on the transfer table 1. A bed soil supply device 9 having a delivery belt 11 that supplies bed soil 13, a rotating brush 25 for leveling the surface of the bed soil in the seedling raising box 2 provided on the side of the transfer table 1, and the bed soil supply device 9
The rotating brush 25 and the presser roll 14 are positioned in relation to each other by the presser roll 14, which presses the seedling-growing box 2 from above. While holding down the rotating brush 25
The presser roll 14 is formed so that
1, and the guide roll 4 is placed at an upper position between the two front and rear guide rolls 4, with a narrower interval only at the lower part of the rotating brush 25 and the presser roll 14. and a soil leveling device for a seedling box in a seeding device for a seedling box in which the presser roll 14 is positioned.

(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 intervals to be described later. Guide roll 4,
4 are connected by a chain 5, and a motor 6
Rotates at a constant speed.

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 feeding belt 11, and a bed soil supply adjustment device 12, and is configured to supply bed soil 13 to the seedling box 2.
supply. The feeding belt 11 is rotated by the motor 6 or a dedicated motor other than the motor 6. The bed soil 13 in the hopper 10 is transported by the feeding belt 1
The soil is fed out while the supply amount is adjusted by the rotation and bed soil supply adjustment device 12 of No. 1.

A pressing roll 14 is provided below the feeding belt 11. The pressing roll 14 is a free roll made of rubber that presses the seedling raising box 2 downward,
It is attached to a mounting rod 15 by a shaft 16. The mounting rod 15 is fixed to an arm shaft 17, and both ends 18, 19 of the arm shaft 17 are pivoted to left and right mounting plates 20, 21 of the soil supply device 9. 22 is a spring that pushes down the presser roll 14.

A rotating brush 2 is provided on the conveying direction side of the bed soil supply device 9.
5 is pivoted. The rotating brush 25 is connected to a desired one of the guide rolls by a chain 26, rotates in the opposite direction to the conveying direction, contacts the upper surface of the seedling nursery box 2, and levels the surface to a certain depth. . The guide rolls 4, 4 in the presser roll 14 portion and the rotating brush 25 portion are as shown in FIG.
The intervals are narrow to prevent the seedling raising box 2 from falling over.

A free roller 27 is provided immediately in front of the rotating brush 25. Free roller 27 is bed soil 1
Lightly touch the surface of step 3 to make it flat. That is, although the rotary brush 25 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 27.

An irrigation nozzle 28 is provided in front of the free roller 27.

A seed supply device 29 is provided in front of the irrigation nozzle 28. The rice seed supply device 29 is made up of a hopper 30 and a delivery roll 31. A paddy guide 32 is attached to the rear side of the feed roll 31. The paddy guide 32 is formed of a semi-circular plate, and the feed roll 31 rotates in the opposite direction to the guide roll 4. When the feed roll 31 rotates in the opposite direction, the rice seeds 33 are discharged forward, so that the seeds can be uniformly sown on the front end of the seedling raising box 2. A hull removal brush 34 is provided in front of the rice seed supply device 29 for sweeping off the rice seeds 33 placed on the upper surface of the edge of the seedling raising box 2.

An irrigation nozzle 35 is attached to the front side of the rice removal brush 34. A motor 6 is provided in front of the irrigation nozzle 35, and a soil covering device 3 is provided in front of the motor 6.
6 is provided.

The soil covering device 36 includes a hopper 37 and a feeding belt 38.
It is composed of The feeding belt 38, like the feeding belt 11, rotates in the same direction as the advancing direction of the seedling raising box 2.

A soil removal brush 39 is provided on the front side of the soil covering device 36. FIG. 7 shows an embodiment in which a shaft 16 is rotatably attached to a mounting rod 15, and 40 is a bearing.

(effect) Next, we will discuss the effect.

The seedling growing box 2 is placed on the supply side 7 above the transfer table 1, and when 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 comes into contact with the pressing roll 14. However, since the holding roll 14 is attached so as to be pushed up, the seedling raising box 2 is transported to the take-out side 8 by pushing up the holding roll 14 against the elasticity of the spring 22. Presser roll 14
The seedling raising box 2 that has passed through is supplied with bed soil 13 by the bed soil supply device 9 and then advances to the rotating brush 25.

The rotating brush 25 removes excess soil from the bed soil 13, and the surface of the bed soil is leveled. Excess soil is removed backwards. At this time, the rotating brush 25 presses the front end of the seedling growing box 2 downward and tries to lift the rear of the seedling growing box 2, but the presser roll 14 pushes the rear end of the seedling growing box 2 toward the guide rolls 4, 4. Because it is pressed,
To smoothly supply bed soil without causing the soil to fall over.

Floor soil 13 whose surface has been made uniform with a rotating brush 25
When passing under the free roller 27, the rice is lightly pressed down and flattened by the free roller 27, watered by the irrigation nozzle 28, and seed rice 33 is supplied by the seed rice supply device 29.

Since the delivery roll 31 of the seed supply device 29 rotates in the opposite direction to the rotation of the guide roll 4, the seed rice 33 falls forward and is also well supplied to the front end of the seedling growing box 2. In this case, part of the seed rice 33 is in the seedling raising box 2.
The rice is also supplied to the upper part of the edge of the rice grains, but this is scraped off by the rice scraping brush 34. And irrigation nozzle 3
When passing through the lower part of the seedling box 5, a chemical solution such as Daconil algae is supplied, the soil is covered with soil by a soil covering device 36, and the soil on the top surface of the seedling raising box 2 is swept off with a soil removal brush 39.

(Effects) The present invention includes a transfer table 1 in which a plurality of guide rolls 4 for transversely transporting a seedling raising box 2 are provided at regular intervals;
A soil supply device 9 having a delivery belt 11 for supplying the soil 13 provided on the transfer table 1, and a rotating brush for leveling the surface of the soil in the seedling box 2 provided on the side of the transfer table 1. 25, and a presser roll 14 that presses down the seedling raising box 2 from above, which is provided immediately before the portion to which the bed soil is supplied by the bed soil supply device 9.
The relative position of the seedling box 2 is controlled by the presser roll 14.
The rotary brush 25 is formed so that it acts while pressing the soil, and the presser roll 14 is provided below the bed soil delivery belt 11 so as to freely rotate.
The rotating brush 25 and the presser roll 1 are placed at an upper position between the two front and rear guide rolls 4, 4 with narrower spacing between the lower part of the presser roll 14 and the presser roll 14.
4 is positioned as a bed soil leveling device for a seedling box in a seeding box seeding device, and the presser roll 14 is provided below the bed soil delivery belt 11 so as to freely rotate. , the length of the entire seeding device can be shortened.

Since the presser roll 14 is attached in a free rotation structure, the structure is simple, it is easy to install, and the cost can be reduced.

Even if the tip of the rotating brush 25 is bent and comes into surface contact, it is supported between the two front and rear guide rolls 4, 4, so the position where the most pressure is applied can be supported, and the presser roll Together with 14,
Both can be applied with strong pressure and can be carried out smoothly.

This effect is achieved.

[Brief explanation of drawings]

Fig. 1 is a leveling state diagram of a known example, Fig. 2 is an explanatory diagram showing the overturning of the seedling box when the rotating brush is brought close;
3 is an overall side view of the present invention, FIG. 4 is a sectional view of the main part, FIGS. 5 and 6 are longitudinal sectional front views of the main part, and FIG.
The figure is a sectional view of the bearing. 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 adjustment device, 13
...Bed soil, 14...Press roll, 15...Mounting rod, 16...Shaft, 17...Arm shaft, 18
... end, 19 ... end, 20 ... mounting plate, 21
... Mounting plate, 22 ... Spring, 25 ... Rotating brush, 26 ... Chain, 27 ... Free roller, 28 ... Irrigation nozzle, 29 ... Seed supply device, 30 ... Hopper, 31 ... Feeding roll ,3
2...Paddy guide, 33...Paddy seed, 34...Paddy removing brush, 35...Irrigation nozzle, 36...Soil covering device, 37...Hopper, 38...Feeding belt, 3
9... Earth brush, 40... Bearing.

Claims (1)

[Claims] 1. A transfer table 1 on which a plurality of guide rolls 4 for transversely conveying the seedling raising box 2 are provided at regular intervals, and a delivery belt 11 for supplying the bed soil 13 provided on the transfer table 1.
a rotating brush 25 for leveling the surface of the soil in the nursery box 2 provided on the transfer table 1 side, and a portion to which the soil is supplied by the soil supplying device 9; The rotating brush 25 and the presser roll 14 are positioned in relation to each other while the presser roll 14 presses the seedling-growing box 2 from above. The brush 25 is formed so that it acts, and the presser roll 14 is provided below the bed soil delivery belt 11 so as to freely rotate;
The guide roll 4 has a narrower interval between the rotating brush 25 and the presser roll 14 in the lower part thereof, so that the rotating brush 25 and the presser roll 14 are located at an upper position between the two front and rear guide rolls 4, 4. A device for leveling the bed soil of a seedling box in a seeding device for a seedling box.