JPH0416978Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a bed soil/soil covering device that pours bed soil into a seedling box for growing seedlings used in a rice transplanter and covers it with soil after sowing. It is related to.

(b) Conventional technology Conventionally, in the bed soil/soil covering device of a seedling seeding seeding machine, the soil falling from the bed soil hopper is collided with the soil, coarse grains are placed at the bottom, and fine grains are placed at the top. In order to improve sweeping and growth, a reflector plate 42 was placed as shown in FIG.

However, when the reflector plate 42 is made of a plate, the amount of soil differs between when soil is added to the floor and when it is covered with soil, so it is necessary to adjust the position of the reflector back and forth each time. be.

That is, when supplying soil, the amount of soil is large, so it is necessary to separate it from the belt for delivering soil, and when covering soil, since the amount is small, it is necessary to move the reflector plate 42 close to the belt for delivering soil. It was.

In addition, in the case of the reflector plate 42, since the plate constitutes a reflector plate, if wet mud adheres to the reflector plate 42, coarse soil particles will no longer be reflected in this area, and the reflector plate 42 will not be able to reflect its original shape. Therefore, it becomes impossible to distinguish between coarse grain size and "fine" grain size, which is a function of grain size.

(c) Problems to be solved by the invention This invention solves the problems caused by the conventional reflector 42, and eliminates the need to adjust the position between the floor soil and the covering soil. Cylindrical reflector 3
By making the loose fitting hole 3a larger than the loose fitting shaft 14, the cylindrical reflector 3 can be automatically moved back and forth.

Further, as in the case of the reflecting plate 42, the reflecting surface is always changed by rotating the surface to prevent dirt from adhering to the surface and making it impossible to exhibit the reflecting effect.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

In the bed soil/soil covering device A, which is capable of putting bed soil into the inside of the seedling raising box 6 and also covering the bed soil with soil after sowing, a cylindrical reflector 3 is provided at the outlet of the bed soil hopper 1. , a gap is formed between the loosely fitting hole 3a of the cylindrical reflector 3 and the loosely fitting shaft 14.

(E) Embodiment The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

Fig. 1 is an overall side view of the seedling seeding seeding machine, Fig. 2 is a side view of the leveling brush 4 of the bed soil leveling device in the rest position,
FIG. 3 is a side sectional view of the leveling brush 4 in the soil-covering position, and FIG. 4 is a rear view of the same.

In FIG. 1, a plurality of rollers 5 are arranged across between roller support frames 10,
A seedling raising box 6 is configured to move on the rollers 5.

Further, a bed soil/soil covering device A is arranged on the roller support frame 10.

In front of the bed soil/soil covering device A, there is a seeding device B.
is arranged, and the power of the drive motor of the seeding device B is taken out through chains 26 and 43 for driving the rollers 5 to drive the bed soil/soil covering device A. Furthermore, chains 44 and 45 are wound in order to drive the roller shaft 37 under the submersion device C in the front position of the seeding device B and the roller shaft 37 under the leveling brush 4 at the rear of the soil/covering device A. It is hung.

Furthermore, a submergence device C is placed in front of the seeding device B.

The procedure for working with this seedling seeding machine is as follows:
As part of the process, the bed soil in the bed soil hopper 1 is put into the seedling growing box 6 to create a seed bed without submerging or sowing by the flooding device C or the seeding device B. When the seeding bed preparation work is completed, the seedling raising box 6 is returned to the front of the roller support frame 10 again, submerged with water using the submersion device C, then sown with the seeding device B, and finally with the bed soil/soil covering device. A
The soil is covered with soil.

Next, the configuration of the bed soil/soil covering device A will be explained with reference to FIGS. 2, 3, and 4.

Hopper frame 1 supporting bed soil hopper 1
1L and 11R are provided on the left and right, and the hopper frame 11 is provided with roller support frames 10L and 11R.
The soil hopper 1 is fixedly installed on the hopper frame 10R, and the soil hopper 1 is supported on the hopper frames 11L and 11R.

At the outlet of the soil hopper 1, a soil dispensing belt 2 is driven by a driving roller 28 and a driven roller 29, and a plurality of belt support rods 30 are disposed on the upper and lower surfaces of the soil discharging belt 2. -ing

The part of the large-diameter loose fitting hole 3a of the cylindrical reflector 3 is placed on the floor soil delivery belt 2 and is discharged from the end of the floor soil delivery belt 2 in the middle of falling. is loosely fitted into the small diameter loosely fitting shaft 14.

Although the shaft 15 appears to fit inside the cylindrical reflector 3 in the drawing, it is located only in the hopper frames 11L and 11R, and is not a pivot that supports the vertical movement of the leveling brush 4. It is a supporting shaft and does not fit inside the cylindrical reflector 3.

Therefore, the cylindrical reflector 3 can rotate while being supported by the loosely fitting shaft 14 while moving up and down and back and forth.

The purpose of arranging the cylindrical reflector 3 is that among the bedding soil sent by the bedding belt 2, those with large particle sizes collide with the cylindrical reflector 3 and are reflected back to the seedling box. 6 falls forward in the direction of movement, and fine soil with small particle size falls onto the roller 5, with the lower layer being coarse and the upper layer having a fine particle size to improve water sweeping and the growth of seedlings. .

FIG. 3 shows the state of covering soil after sowing, and the top surface of the covering soil placed on the seeds is scraped with a leveling brush 4 to level the surface.

In this configuration, the device for adjusting the lower end limit position of the leveling brush 4 is connected to the working condition adjustment lever 12.
and a fine adjustment knob 8.

That is, the leveling brush 4 is supported on the left and right sides by rotating arms 16, 16.
The front end of 6 is attached to the hopper frame 1 by a pivot shaft 15.
It is supported by 1L and 11R.

A U-shaped rod 17 is projected upward from the midpoint of the rotating arms 16, 16, and a fine adjustment knob 8 is screwed onto the U-shaped rod 17. 19 is a wing nut for locking.

The tip of the fine adjustment knob 8 is connected to the working condition adjustment lever 1.
It is brought into contact with the top of the contact arm 7 of No. 2. Further, the front end of the contact arm 7 is a part of the pivot shaft 27, and has an elongated hole to support the hopper frames 11L and 11R.
It is supported by

Furthermore, the hopper frames 11L and 11R are formed with a cut-out bay part 11a in which the brush shaft 9 of the leveling brush 4 can be moved up and down, and also for engaging and fixing the working state adjustment lever 12. This constitutes an engagement display section 11b.

There are three stages of engagement parts in the engagement display part 11b, which are the positions for "pause", "cover soil", and "soil floor" operations from the top.

By grasping the working condition adjustment lever 12 and rotating the abutment arm 7 up and down, the fine adjustment knob 8 can be adjusted.
The position of the contact portion at the tip of the brush 4 changes, and the lowest position of the leveling brush 4 changes.

13, the working state adjustment lever 12 is connected to the engagement display section 1.
This is a biasing spring for fixing to 1b.

As disclosed in FIG. 2, the power for driving the roller shaft 37 of the roller 5 by the drive motor of the seeding device B is transmitted through the chain 26 to the bed soil and
is transmitted to the sprocket 20 under the soil covering device A,
A chain 25 wrapped around the sprocket 20
As a result, the drive sprocket 21 of the soil delivery belt 2 is driven. A clutch knob 40 of the soil feeding belt 2 is provided at the drive sprocket 21. Therefore, by rotating the clutch knob 40, it is possible to not drive the soil feed belt 2 even if the drive sprocket 21 is rotating.

A sprocket 22 is fixed on a pivot shaft 15 that pivots the rotating arms 16, 16, and
The chain 24 is wound around the sprocket 23 on the brush shaft 9 through another sprocket 41 on the top, and the brush shaft 9 of the leveling brush 4 is driven.

The rotating arms 16, 16 rotate, but since a chain is wound around the pivot shaft 15 at the center of the rotation, power is constantly transmitted regardless of the vertical movement of the leveling brush 4. It is.

FIG. 5 is a rear view of the cylindrical reflector 3, FIG. 6 is a side cross-sectional view of the cylindrical reflector 3, and FIG. 7 is a diagram of a conventional structure including a reflector 42.

A bedding belt 2 is rotatably arranged under the bedding hopper 1, and the bedding is placed on the bedding belt 2 and transported to the exit side. Conventionally, a reflective plate 42 was placed under the conveyance side as shown in FIG. There were some problems, such as the need to adjust the position of the

The present invention changes the reflector 42 to provide a cylindrical reflector 3.
The same role was achieved by

The diameter of the loose fit hole 3a formed by the inner diameter of the cylindrical reflector 3 is configured to be larger than the diameter of the loose fit shaft 14 that supports the cylindrical reflector 3, so that it can swing freely in the front and back direction. That is.

As a result, when a large amount of soil falls, such as when adding bed soil, the cylindrical reflector 3 retreats due to the weight of the soil, and conversely, when a small amount of soil falls, as when covering soil, the cylindrical reflector 3 The reflector 3 returns to its original position.

By moving the cylindrical reflector 3 according to the flow rate of the soil, it is possible to adjust the distance between the time of adding soil and the time of covering with soil.

Moreover, the cylindrical reflector 3 always rotates due to the flow of the soil, and the surface on which the soil collides changes. As a result, the mud that adhered to the surface of the cylindrical reflector 3 will fall when it reaches the bottom surface, and the surface of the cylindrical reflector 3 can always be kept in a state where it can exert its reflective action. be.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, in the case where the reflective plate 42 exerts a reflection effect as in the past, it is necessary to change the distance between the soil delivery belt 2 and the reflective plate 42 between when soil is introduced and when the covering soil is supplied. However, by constructing the cylindrical reflector 3 as in the present invention and making the loosely fitting shaft 14 extremely smaller than the loosely fitting hole 3a of the cylindrical reflector 3, the cylindrical reflector 3 is It is now possible to swing back and forth, and the distance between the bedding belt 2 and the cylindrical reflector 3 can be automatically changed between when putting in the bedding and when supplying the covering soil.

Second, in the case of the reflector plate 42, if wet soil adheres to it, it will not be able to exhibit its reflective effect unless it is removed, but it can be constructed from a rotating cylindrical reflector 3 as in the present invention. Since the cylindrical reflector 3 is constantly rotated by the flow of soil, there is little adhesion of wet soil, and even if it does adhere, it falls at a rotated position on the lower surface.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of the seedling seeding seeding machine, Fig. 2 is a side view of the leveling brush 4 of the bed soil leveling device in the rest position,
3 is a side sectional view of the leveling brush 4 in the soil-covering position, FIG. 4 is a rear view, FIG. 5 is a rear view showing the cylindrical reflector 3, and FIG. 6 is a sectional view of the cylindrical reflector 3.
FIG. 7 is a side sectional view of a portion of the conventional reflector 42. 1... Soil hopper, 2... Soil delivery belt, 3... Cylindrical reflector, 3a... Loose fitting hole, 4...
Leveling brush, 5... Roller, 7... Contact arm, 8... Fine adjustment knob, 12... Working condition adjustment lever, 14... Loose fitting shaft.

Claims (1)

[Scope of utility model registration request] In the bed soil/soil covering device A, which is capable of putting bed soil into the inside of the seedling raising box 6 and also covering the bed soil with soil after sowing, a cylindrical reflector 3 is provided at the outlet of the bed soil hopper 1. , a bed soil/soil covering structure for a seedling seeding seeding machine, characterized in that a gap is formed between the loose fitting hole 3a of the cylindrical reflector 3 and the loose fitting shaft 14.