JPH0133130B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soil leveling device that is incorporated into a seedling-raising seeding device to level the surface of bed soil more completely.

As shown in FIG. 5, the conventional soil leveling device is composed only of a horizontal shaft brush 43 that is rotated around a horizontal axis in series with the soil-filling machine along the transport direction A of the seedling nursery box 2, and The soil at the center of the soil surface was almost completely leveled, but because the horizontal brush 43 goes in and out by climbing over the front and rear edges 2a of the seedling nursery box 2, the bed soil was not completely leveled at the corners near the front and rear edges 2a. This work is not carried out, resulting in an arc-shaped mound P as shown in the figure. In this mound P, the seeds are not placed in place and roll towards the center, causing the seedlings to grow densely. Problems such as shortages or stock shortages are occurring.

The present invention solves these problems of conventional devices by rotating a brush having vertical bristles around a vertical axis.

That is, the object of the present invention is to provide a soil leveling method in which a vertical shaft having a brush is placed at the intermediate rear of the vertical shafts that rotate in opposite directions to each other, so that no soil is left leveled between the two vertical shafts. The purpose is to provide equipment.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire seedling-raising seeding device 1, and the seeding device 1 is roughly divided into a seedling-raising box transfer mechanism 3 that reciprocates the seedling-raising box 2 and can be switched between forward and reverse directions, and a seedling-raising box transfer mechanism 3 that supports this transfer mechanism 3. A support frame 4 that is placed on the support frame 4, a soil-entering machine 6, a watering machine 7, and a seeding machine 8 that are placed on the support frame 4 and straddle the seedling box transfer path 5 of the transfer mechanism 3, and It has an arranged soil leveling device 9 and a presser feeding device 10 for the seedling raising box 2.

The support frame 4 has two parallel U-shaped cross-sectional frames 11 and a plurality of support legs 12.
A motor section 13 of the transfer mechanism 3 is attached to a support leg 12 near the seeding machine 8.

The transfer mechanism 3 includes the motor section 13 and the frame 1.
A plurality of rotary shafts 17 are pivotally supported at intervals of 1.
and a roller 14 provided on this rotating shaft 17,
It consists of a sprocket 15, a chain 16, etc. that transmit power from the motor section 13 to the rotating shaft 17. These sprocket 15 and chain 1
6 etc. are housed in a groove in one frame 11 having a U-shaped cross section.

The transfer mechanism 3 is of a roller conveyor type in order to perform normal forward and reverse rotation, and is configured to drive all rollers 14, but is configured to drive only one roller by wrapping a belt around it. Also good.

The soil insertion machine 6 is capable of supplying bed soil and covering soil, and is connected to a belt conveyor 19 parallel to the transfer route 5.
and a hopper 20 above it, and the belt conveyor 19 is connected from the transfer mechanism 3 to the power transmission means 18.
It is driven in synchronization with the seedling raising box 2 via the seedling box 2 or by its own drive mechanism.

When supplying bed soil, the seedling raising box 2 is moved in the direction of arrow A to supply the bed soil, and then the surface of the bed soil is leveled with the soil leveling device 9. When supplying covering soil, the seedling raising box 2 is moved in the direction of arrow B. The soil leveling device 9 is retracted upward at this time.

A presser feeding device 10 is disposed inside and in front of the earth-entering machine 6, respectively. This presser foot feeding device 1
0 is a rotating shaft 17' that is the same as the rotating shaft 17 and the roller 14 at the tip of the arm 38 supported by the rotating shaft 17.
and rollers 14', and power transmission means 39
The roller 14' is configured to be driven by the power from the transfer mechanism 3 via the roller 1.
It rotates in the opposite direction to 4 and can come into contact with the upper surfaces of the left and right edges of the seedling raising box 2, preventing soil or water from adhering to the seedling raising box 2 and causing it to slip, or when the seedling raising box is being supplied with bed soil due to bed soil. The transfer posture is maintained so as not to tilt the seedling box 2, and the seedling raising box 2 can be transferred accurately. It is preferable that this presser feeding device 10 is also provided in the seeding machine 8 so as to accurately transport the seedling raising box 2 at the time of sowing.

The irrigation machine 7 has two sets of front and rear brackets 21, 21 attached to the frame 11, and two water supply pipes 22, 21, respectively.
22 is supported, and a pipe 23 connected to these two water supply pipes 22 is connected to a water supply pump 24, and both pipes 23 are provided with a pressure gauge, a pressure gauge, and the like. The irrigation machine 7 sprinkles water from the water supply pipe 22 and supplies the bed soil in the seedling raising box 2 substantially uniformly. This irrigation device 7 may have the pipe 23 connected to a water pipe, or may have only one set of water supply pipes 22 if the amount of water to be irrigated is small.

The seeding machine 8 includes an outer frame 26 fixed to the frame 11 having a U-shaped cross section, an inner frame 27 disposed within the outer frame 26 so as to be movable up and down, and a seed hopper 28 disposed on the outer frame 26 and a seed hopper 28. an upper frame 30 supporting the roll 29;
The sowing roll 31, the rotating brush 32, and the surplus paddy discharge body 33 supported by the inner frame 27; the sowing roll 31, the rotary brush 32, and the surplus paddy discharge body 33;
A drive mechanism 34 for driving the feed roll 29 and the like are provided. The outer frame 26 is formed of two side plates, and is open at the front, rear, top and bottom.

The seeding machine 8 is operated when the seedling raising box 2 is transferred in the direction of arrow B. Therefore, when supplying bed soil and watering, the inner frame 27 is raised upwards and the seedling roll 31, rotating brush 32 and surplus paddy are removed. The discharge body 33 is retracted upward. The pivot point of the inner frame 27 is a support shaft 35 supported by the outer frame 26.

The soil leveling device 9 is shown in FIGS. 2-4,
A gear case 61 is attached to the lower surface of the support base 60 on which the motor 41 is attached, and rotatably supports the magnetic vertical shafts 62 of the three vertical shaft brushes 40. A vertical axis 62c is arranged. The gear 63 provided on the output shaft 73 of the motor 41 is the gear 64a, 64c on the vertical shaft 62a, 62c.
The gears 64b of the vertical shaft 62b are directly engaged with each other via the idler gear 65, and the vertical shaft brushes 40a, 40b, 40c are driven by the motor 41.
are rotated in the outward direction D, respectively. The vertical axis 62a and the vertical axis 62b are in opposite directions, and the vertical axis 62c may rotate in either direction, and transmission may be performed by a chain or belt instead of gear transmission.

Each of the vertical brushes 40 is constructed by radially attaching a large number of brushes 67 with vertically planted bristles 72 to the lower surface of a disk 66 provided on a vertical shaft 62. The brushes 67 have overlapping rotation trajectories at their outer diameter ends, and
It passes outside the left and right side walls of the seedling raising box 2 on the transfer mechanism 3. That is, the two vertical shaft brushes 40a, 4
0b is provided across the width direction of the seedling raising box 2, so that the entire surface of the bed soil can be thoroughly leveled.

Height adjustment screws 68 are provided on both sides of the support stand 60.
and a vertical guide rod 69 are provided.
Reference numeral 70 indicates mounting bodies made of angle material fixed on the left and right frames 11, and a cylindrical member 7 is provided on the outer surface of each mounting body 70.
1 is fixed, a fixed guide rod 69 is inserted into the support base 60 so as to be vertically slidable, the height adjustment screw 68 is screwed into the support base 60, and its lower end is connected to the mounting body 70. is in contact with the top surface of the By moving this height adjustment screw 68 back and forth,
Guided by the guide rod 69 and the cylindrical member 71, the support stand 60 is vertically positioned, and the height of the vertical brush 40 relative to the seedling raising box 2 is adjusted. In addition, when supplying soil covering, a spacer is inserted between the height adjustment screw 68 and the mounting body 70 to hold the vertical shaft brush 40 sufficiently high.

Note that the vertical axis brush 40c is the same as the vertical axis brushes 40a, 4.
For example, the vertical shaft brushes 40a, 40b are placed at a position 1 to 3 mm higher than 0b to prevent substantial leveling of the soil.
It is preferable that the brushes 40b be configured to smooth out the smoothing marks left by the vertical shaft brushes 40a and 40b since this will not adversely affect the smoothing marks left by the vertical shaft brushes 40a and 40b.

According to the present invention described in detail above, the protruding soil on the surface of the bed soil is swept away from the center side to the outside, and the soil is leveled to every corner of the seedling raising box 2, and the brushes 67a and 67b overlap the center. Furthermore, even if a mound of soil forms in the shape of a Fuji frame in plan view at the corners of the front and rear walls 2a of the seedling raising box 2, this can be smoothed out by the vertical shaft brush 40c that passes next. Since the amount of soil in the Mt. Fuji-shaped mound is extremely small, even if the mound is dispersed around the surrounding area with the vertical shaft brush 40c, it will not have a negative effect on sowing, and the central part of the bed soil will be leveled. This also ensures the best leveling of the soil over the entire surface, allowing for more accurate sowing, and
The vertical axis brush 40c is the left and right vertical axis brushes 40a, 4.
Since it only needs to be linked with 0b, the drive mechanism can be easily configured.

[Brief explanation of drawings]

Fig. 1 is an overall front view showing the state in which the soil leveling device of the present invention is incorporated into a seedling seeding seeding device, Figs. FIG. 3 is a sectional plan view, FIG. 3 is a sectional rear view, FIG. 4 is a side view, and FIG. 5 is a sectional view showing a conventional device. 1... Seeding device for seedling raising, 2... Seedling raising box, 3...
Seedling box transfer mechanism, 5... Seedling box transfer route, 6...
Soil entry machine, 8... Seeding machine, 9... Soil leveling device, 4
0... Vertical axis brush, 62... Vertical axis, 66... Disk, 67... Brush, 72... Vertical bristles.

Claims (1)

[Scope of Claims] 1. A soil leveling device in which left and right vertical axis brushes 40a and 40b are arranged above the seedling raising box transfer path 5 to level the soil surface in the seedling raising box 2 from the center to the left and right outer sides, comprising: A soil leveling device characterized in that a vertical shaft brush 40c that is interlocked with the vertical shaft brushes 40a and 40b is disposed intermediately behind the vertical shaft brushes 40a and 40b.