JPH0212854Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a soil guide device for a soil-entering machine for seedling growing boxes.

<Conventional technology> When placing bed soil into a seedling box using a soil-filling machine, coarse-grained soil is placed in the bottom and fine-grained soil is placed on the surface, which is considered to be in good condition with so-called fine surface soil and rough soil in the lower layer. Ru. This is because the soil can be leveled uniformly by the rotating brush, sowing can be done uniformly, and furthermore, the soil has excellent oxygen retention and a good balance between water absorption and water retention.

In order to obtain this condition of the surface layer fine soil and the lower layer coarse soil, conventionally, as shown in FIG.
9' is arranged, and this reflecting plate 39' reflects the fallen soil in the direction B opposite to the transfer direction A of the seedling nursery box 9, and the rough soil that is largely reflected is put into the seedling nursery box 9 first, and then,
The coarse soil in the seedling nursery box 9 covered the fine soil that reflected the small particles.

<Problems to be solved by the invention> Although surface fine soil and lower rough soil can be obtained with this technique, all the soil, especially even the medium fine soil, is reflected in the direction opposite to the transport direction of the seedling nursery box 9. Therefore, in the vicinity of the front wall 9b of the seedling raising box 9, the front wall 9b acts as a barrier, preventing soil from entering, and even if soil does enter, only a small amount may occur, causing plant dropouts and the like.

<Means for solving the problem> In the present invention, a first reflecting plate 38 is provided in front of the belt conveyor 16 for delivering soil to reflect the fallen soil in the direction of transfer of the seedling box. A second reflecting plate 39 having an inclined surface 39a that reflects the rough soil reflected by the plate 38 in the reverse transport direction B is provided.

That is, the specific structure of the problem-solving means in the present invention is characterized by a belt conveyor 16 that transports soil and drops it in the same direction as the transport direction A of the seedling box 9.
A first reflecting plate 38 facing diagonally upward in the transport direction is provided in front of the first reflecting plate 38 in order to reflect the falling coarse soil to a large extent and the fine soil to a small extent in the transport direction A. 38 is provided with a second reflecting plate 39 having an inclined surface 39a facing obliquely upward in the reverse transport direction in order to reflect the rough soil largely reflected by the second reflector 38 in the reverse transport direction B.

<Function> The soil dropped from the belt conveyor 16 is
By reflecting in the transport direction A by the reflecting plate 38,
Separated into rough soil and other soil, the second reflecting plate 39
The first surface 39a reflects only this rough soil in the opposite direction B and supplies it into the seedling box 9 before other soil.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In Figures 1 to 3, reference numeral 1 denotes a soil digging machine that can be incorporated into a seedling seeding seeding device, and is mounted on a support frame 3 formed by arranging a pair of front and rear U-shaped members 2 facing each other. The seedling box transfer mechanism 4 is supported by the seedling box transport mechanism 3 .

The seedling box transfer mechanism 4 is provided with a pair of rollers 6 on rotating shafts 5 arranged at approximately equal intervals on a support frame 3, and a chain 8 wound around a sprocket 7 provided at the end of each rotating shaft 5. By transmitting power from a motor (not shown), the seedling box 9 placed on the rollers 6 can be transported. Although this seedling box transfer mechanism 4 is a roller conveyor, it may also be a belt conveyor.

The earth-entering machine 1 has a pair of left and right guide plates 13, 1 on the inner upper part of a pair of front and rear side plates 12 fixed on a support frame 3.
4 to form a hopper device 15, and a belt conveyor 16 is disposed below the hopper device 15.

The hopper device 15 is made up of three upper and lower sections, including a storage section 17 at the top, a guide section 18 at the middle, and a drop-in opening section 19 at the bottom. Inclined surfaces A and B are formed on the inner surface. The lowest positions a and b of both inclined surfaces A and B are shifted vertically, and the lowest position a is higher than the lowest position b by a height H.

A shutter 21 is provided in front of the drop opening 19 of the guide plate 14, and a rack 22 formed on the shutter 21 meshes with a pair of front and rear pinions 23, and rotates a shaft 24 that supports the pinions 23. By moving it, the gap with the belt conveyor 16 can be adjusted, and the amount of soil supplied can be adjusted.

The belt conveyor 16 has a belt 28 wound between rollers 26 and 27 rotatably supported by the side plate 12, and power is transmitted to one of the rollers 27 from the rotating shaft 5 of the transfer mechanism 4 via a winding transmission means 29. ing. It is preferable that the belt conveyor 16 or the winding transmission means 29 be provided with an electromagnetic clutch for operating the clutch after detecting that the seedling box 9 is brought into the soil-entering machine 1.

Reference numeral 31 denotes an auxiliary feed mechanism, in which a pair of rollers 33 are provided on a rotating shaft 32, and both ends of this rotating shaft 32 are inserted into inverted triangular holes 34 formed in the side plate 12, allowing free rotation and vertical movement. is supported by
The rotating shaft 32 and rollers 33 are the same as the rotating shaft 5 and rollers 6 of the transfer mechanism 4.

The lower surface side of the belt conveyor 16 and the transfer mechanism 4
The distance T between the upper surface of the upper seedling growing box 9 is set to be slightly smaller than the diameter of the roller 33, and the roller 33 can contact the belt 28 between the rollers 26 and 27, and the upper surface of the seedling growing box 9. It is possible.

Therefore, the rollers 33 come into contact with the seedling box 9 carried into the soil-entering machine 1 and are pushed up, pushing the belt 28
This causes tension in the belt 28, and as a result, the movement of the belt 28 causes the roller 3 to
3 is rotated and driven so as to press the seedling raising box 9 from above.

Reference numeral 37 denotes a soil guiding device, which includes a first reflecting plate 38 (chute) supported by the side plate 12 and a second reflecting plate 39 supported by a mounting portion 40 provided on the side plate 12. Although the mounting portion 40 may be integrally formed with the side plate 12, it is preferable to form it as a separate member so that its position can be adjusted in the transport direction A.

The first reflecting plate 38 is formed of a letter plate (or a flat plate may be used) in cross section, and has threaded portions 51 at both ends thereof.
This threaded portion 51 is inserted into a vertically elongated hole 52 formed in the side plate 12, and a wing nut 53 is screwed therein. The first reflecting plate 38 is adjustable in angle and vertical position with respect to the belt conveyor 16, and has a surface facing diagonally upward in the direction of transfer of the seedling box, that is, facing forward and upward. It catches the soil that is thrown out and falls, and reflects it slightly in the same direction as the direction of transfer of the seedling box. On this occasion,
Rough soil reflects a lot of light, while fine soil reflects less.

The second reflecting plate 39 is formed of an angle member having a cross section, has threaded portions 55 at both ends thereof, and is inserted into the vertical elongated hole 56 of the mounting portion 40 to attach the wing nut 57.
are screwed together and fixed to the mounting part 40.
This second reflecting plate 39 is also adjustable in angle and vertical position.

This second reflecting plate 39 has the bent portion 58 as its border,
A first surface 39a facing the first reflecting plate 38 side and a second surface 39b facing rearward and downward are formed, and
The surface 39a is an inclined surface that faces diagonally upward in the reverse transport direction, that is, rearwardly upward, and the second surface 39b is an inclined surface that faces diagonally downward in the reverse transport direction. The reflected soil is bent at the part 58.
The first surface (sloped surface) 39a mainly receives rough soil and reflects it in the direction B opposite to the transport direction A, and the second surface 39b mainly pushes down the fine soil downward. I will guide you to. Since the rough soil is reflected in the direction B, it falls into the seedling box 9 before the fine soil.
The soil between rough soil and fine soil is the first and second reflector 38,
Although the direction of reflection differs depending on the angle and vertical position of 39, it is preferable to guide it downward while maintaining the A direction on the second surface 39b, similar to the thin soil.

Incidentally, the rough soil reflected on the first surface 39a and the second surface 3
There may be a collision with the fine soil that is about to hit 9b, but this is only a small amount and only causes more fine soil to be mixed into the lower coarse soil. Further, the angle of the second surface 39b with respect to the first surface 39a should be set so that at least the medium soil comes into contact with it, and it is also possible to form the second reflection plate 39 so that the angle can be adjusted. It is best to fall into the seedling nursery box 9 in order from rough soil to fine soil and at an angle that is closer to vertical.

Reference numeral 42 denotes a soil leveling device disposed in front of the soil insertion machine 1, which smooths the top surface of the bed soil supplied into the seedling growing box 9. This soil leveling device supports a rotating shaft 44 on the upper part of a frame 43 whose lower end is pivoted to the support frame 3,
A brush 45 is attached to this rotating shaft 44, and the rotating shaft 44 is connected to the transfer mechanism 4 through a winding transmission means 46.
Power can be transmitted from the rotating shaft 5 of the rotary shaft 5. 47
is a height adjustment screw screwed into the frame 43, the lower end of which can come into contact with the upper surface of the U-shaped cross-sectional member 2, and a height adjustment screw 47 that can be freely inserted between it and the upper surface of the member 2. A retraction member 48 is rotatably provided with a bolt 49, and the soil leveling device 42
When the brush 4 is not operated, the retracting member 48
Lift 5 upwards.

<Effects of the invention> According to the invention detailed above, the inclined surface (first surface) 39a facing diagonally upward in the reverse transport direction is provided on the lower front side of the first reflecting plate 38 facing diagonally upward in the transport direction.
Since the second reflecting plate 39 is provided, the rough soil in the supplied soil can be separated from other soil more reliably by giving a two-stage sieving action, and the rough soil can be separated from the other soil as before. The soil supplied to the seedling box 9 is reflected in the direction B opposite to the transfer direction A, and other soil, mainly fine soil, is not reflected in the opposite direction B and is allowed to fall in the transfer direction A. Since the surface layer of fine soil can be made into a lower layer of coarse soil, and the fine soil can be placed near the front wall 9b of the seedling raising box 9, occurrence of missing plants can be prevented.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a sectional front view, FIG. 2 is a sectional view taken along the - line in FIG. The figure is a sectional view of a conventional device. DESCRIPTION OF SYMBOLS 1... Soil entry machine, 9... Seedling box, 15... Hopper device, 16... Belt conveyor, 37... Soil guide device, 38... First reflecting plate, 39... Second reflecting plate, 39a... ...First page, 39b...Second page, I...
...Direction of transfer of the seedling box, b...Direction opposite to the direction of transfer of the seedling box.

Claims (1)

[Scope of utility model registration request] In front of the belt conveyor 16 that transports and drops the soil in the same direction as the transport direction A of the seedling box 9,
A first reflecting plate 38 facing diagonally upward in the transfer direction is provided in order to reflect the falling rough soil to a large extent and the fine soil to a small extent in the transfer direction A. A soil guiding device for an earth-entering machine, characterized in that a second reflecting plate 39 is provided with a second reflecting plate 39 having an inclined surface 39a facing obliquely upward in the reverse transport direction to reflect largely reflected rough soil in the reverse transport direction B.