JP3940639B2 - Soil cover tank for sowing plant - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor soil covering tank for a seeding plant that supplies soil from a floor soil tank to a floor soil machine, and from a soil covering tank to a soil covering machine, and puts the soil into a seedling box and covers the soil.
[0002]
[Prior art]
As a conventional technique, when soil is put into a floor soil tank or a covering soil tank, the supplied soil has a mountain shape, and a large one of the soil rolls on a slope where the soil has a mountain shape, and the inner peripheral surface of the tank is Since alligators gather, the soil in the tank becomes uneven. Japanese Patent Application Laid-Open No. 5-24657 and the like have disclosed means for preventing the clogging by preventing the soil from bridging when the uneven state is eliminated and simultaneously discharging from the tank. It is.
[0003]
[Problems to be solved by the invention]
In the present invention, when the soil is put into the floor soil tank or the covered soil tank as described in the section of the prior art, the supplied soil has a mountain shape, and a large one of the soils has a mountain shape. The surface of the soil in the tank when the inner peripheral surface of the tank rolls on the inclined slope and the soil in the tank becomes uneven is eliminated, especially when the amount of soil in the tank decreases due to soil discharge Keeping the surface flat and preventing large grains from rolling and gathering, supplying soil to the floor earthenware or earthening machine in a uniform state, and evenly placing the floor soil or covering soil in the nursery box It was invented for the purpose of eliminating irregular seedlings.
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention supplies soil from a floor soil tank to a floor soil machine, from a soil covering tank to a soil covering machine, and puts the soil into a seedling box and performs soil covering. A column-shaped hopper with a discharge port in the lower part and a number of holes through which the soil can freely pass is provided upright in the center of the inner or covered soil tank, and the soil is put into the hopper. It is characterized by having made the structure which carries out.
[0005]
In this case, when the hopper is installed in a floor soil tank or a cover soil tank that has a funnel-like shape with a lower cross-sectional area at the lower side of the lower hood and an opening at the lower end, the upper part extends from the lower part to the lower part. Well, the hopper is narrowed down and formed in an inverted trapezoidal shape in a side view so that the lower part of the hopper is brought close to the dropping port, and a plurality of punched holes are arranged at intervals in the vertical direction. The front and rear punch holes and the left and right punch holes are stepped so that adjacent front and rear punch holes and left and right punch holes are staggered.
[0006]
Further, a sensor for detecting the overflow limit state of the soil to be introduced into the hopper is provided, and the introduction of the soil is stopped by turning on the sensor.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
【Example】
Hereinafter, the floor soil covering tank in the sowing plant according to the present invention will be specifically described with reference to the drawings. First, the outline of the sowing plant will be described with reference to FIG.
[0008]
(10) is a passage that is transported by placing seedling boxes on a number of rotating rolls laid in a chain, and straddles the floor (10) over the passage (10) from the transport start to the end. 3), sowing machine (11), and earth covering machine (4) are installed in this order, and the floor earth tank (1) for supplying soil to the floor earth machine (3) is disposed above the floor earth machine (3). Above (4), a soil covering tank (2) for supplying soil to the soil covering machine (4) is disposed, respectively, and a seedling box supply and storage device (12) is disposed at the conveyance start end of the passage (10). Yes.
[0009]
In the floor soil tank (1) and the soil covering tank (2), the soil put in the hoppers (14a) and (14b) by the hoist cranes (13a) and (13b) is transferred to a belt conveyor type conveyor ( 15a) (15b) and a bucket elevator type lifter (16a) (16b), respectively, and lifted by a soil sieving machine (17a) (17b) to remove the dirt block mixed in the floor. They are put into the soil tank (1) and the soil covering tank (2) and supplied to the floor soil machine (3) and the soil covering machine (4), respectively.
[0010]
Accordingly, the seedling box supplied from the seedling box supply and storage device (12) to the passage (10) is put in the floor soil by the floor earthenware machine (3) while being transported in the direction of the arrow (A), Sowing is carried out by the sowing machine (11), and the soil is covered by the soil covering machine (4) on the sowing machine.
[0011]
At that time, the excess soil supplied from the floor soil machine (3) and the soil covering machine (4) to the seedling box is returned to the lower part of the lifting machines (16a) and (16b) and raised again.
[0012]
In addition, between the floor earthmoving machine (3) and the earth covering machine (4) on the passage (10), related equipment such as a soil leveling machine, earth smearing machine, and irrigation machine are usually installed in addition to the seeding machine (11). This is omitted here.
[0013]
Next, the floor soil tank (1) and the cover soil tank (2) will be described, but the floor soil tank (1) and the cover soil tank (2) are configured in the same manner, so that duplication is avoided. Therefore, one floor soil tank (1) will be described below.
[0014]
The floor soil tank (1) is formed in a funnel shape with a lower cross-sectional area as it goes down the lower side and an opening (8) at the lower end, and (5) is the floor soil tank (1). ) Is a quadrangular columnar hopper that is erected at the center of the floor, and is supported by several support housings (8)... Then, the soil from which the lump has been removed by the soil sieve machine (17a) is introduced into the hopper (5) by the guide plates (19) and (20).
[0015]
And the peripheral surface of this hopper (5) is provided with a lot of punch holes (7) through which soil can freely pass, and the lower part of the hopper (5) is narrowed down to form an inverted trapezoidal shape in side view. The lower part of the hopper (5) is brought close to the dropping port (8) of the floor soil tank (1) while forming a falling path (21) between the lower part and the funnel-shaped floor soil tank (1).
[0016]
In addition, a plurality of holes (7) provided in the peripheral surface of the hopper (5) are arranged in a row in the vertical direction, and the passage (10) direction is the front-rear direction. The stepped holes (7a) and (7a) and the left and right punched holes (7b) and (7b) provided at the same height in the left-right direction perpendicular to the front-rear direction have a step (H) and are adjacent to each other. The front and rear punch holes (7a) and the left and right punch holes (7b) are arranged in a staggered pattern.
[0017]
(9) is a sensor attached to the peripheral wall of the floor soil tank (1). This sensor (9) is filled with the soil introduced from the soil fluid machine (17a) into the hopper (5). As shown in FIG. 4, by detecting the overflow limit state that is about to overflow into the tank (1), the drive motor and the transporter (of the soil fluid machine (17a) are connected via the control circuit (22). 15a) and the lifting motor (16a) are stopped, and the soil charging is interrupted.
[0018]
In the soil covering tank (2), the drive motor of the earth sieving machine (17b) and the drive motor of the transfer machine (15b) and the lifting machine (16b) are stopped by the detection of the sensor (9). .
[0019]
In FIG. 1, (23) shows a shutter, and (24) shows a fluid line.
[0020]
Since it is configured in this manner, as shown by the arrow (b) in FIG. 5, when the soil from which the lump has been removed is introduced into the hopper (5), it flows down from the lower discharge port (6). Gradually, a large number of holes (7) in the hopper (5) are provided in the peripheral surface. Specifically, the holes pass through the holes (7a) and (7b) as shown by the dotted lines and flow into the floor soil tank (1). To become charged.
[0021]
In the process of filling the floor soil tank (1), the movement of large particles of the soil flowing out from the hopper (5) through the punch hole (7) is blocked by the peripheral wall of the hopper (5). Thus, the phenomenon that the inner peripheral surface of the floor soil tank (1) gathers and becomes uneven is suppressed.
[0022]
When the soil introduced into the hopper (5) reaches the state indicated by the solid line (c) immediately before overflowing from the hopper (5), that is, the overflow limit state, the sensor (9) is brought into contact with the soil by contact. Is detected and the introduction of the soil into the hopper (5) is interrupted, and if the introduction of the soil is further continued, the surface of the soil will have a steep slope like the virtual line (d). As a result, large grains mixed in the thrown-in soil freely roll down this slope.
[0023]
Further, as shown in FIG. 6, the soil put into the hopper (5) is stopped or reduced, so that the soil in the hopper (5) and the floor soil tank (1) is gradually reduced. For example, the soil that forms the surface layer flows out from one side hole (7a) to the bottom soil tank (1) as shown by the arrow (e) and from the other side hole (7b) to the arrow (f). Thus, the flow phenomenon decreases as the fluid flows into the hopper (5), and the surface of the soil is kept flat as shown by the solid line (g) while keeping the hopper (5) There is no deep valley where large grains of soil are rolled and gathered in the ground soil tank (1) in the outer circumference (1). It is supplied to the seedling box from the floor soil machine (3).
[0024]
The floor soil tank (1) is configured as described above, and the soil covering tank (2) configured in the same manner also flows down the soil in a uniform state to the soil covering machine (4) into a seedling box. Supply.
[0025]
In addition, although the hopper (5) standing in the floor soil tank (1) and the covering soil tank (2) in the present invention is described as a rectangular column in the embodiment, it may be a cylindrical or polygonal column. Well, it is also conceivable to install several hoppers (5) without being limited to one.
[0026]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0027]
That is, the soil is supplied from the floor soil tank to the floor soil machine, and from the soil covering tank to the soil covering machine, and the soil is put into the nursery box and the soil is put into the soil and covered with the soil. In the floor soil tank, a column-shaped hopper is provided with a discharge port in the peripheral surface and provided with a number of through holes through which the soil can freely pass and the soil is put into the hopper. Or when supplying soil into the soil covering tank, the soil to be put into the hopper passes through a hole provided in the peripheral surface and fills the floor soil or the soil covering tank, and in the filling process, large particles are When the movement is blocked by the peripheral wall of the hopper and the inner peripheral surface of the floor soil or the covered soil tank is gathered and becomes uneven, and when the amount of soil in the floor soil or the covered soil tank decreases, The soil that forms the surface layer is a floor soil or a cover soil tank through one of the holes Since the flow phenomenon is repeated, such as outflowing into the crocodile and flowing into the hopper from the other hole, the surface of the soil is kept almost flat and large particles do not roll and gather It became possible to reduce in a uniform state.
[0028]
In this case, the bottom of the floor soil or the covering soil tank is formed in a funnel shape in which the cross-sectional area is made smaller toward the lower side and the dropping port is opened at the lower end, and the upper part in the floor soil or the covering soil tank extends from the bottom to the bottom. A hopper is erected, and the lower part of the hopper is narrowed down and formed into an inverted trapezoidal shape in a side view, and the lower part of the hopper is brought close to the dropping port to supply soil into the floor soil or the covering soil tank. To suppress the phenomenon of non-uniformity and to reduce the amount of soil in a uniform state by keeping the surface of the soil almost flat, from the bottom to the top in the floor soil or cover tank It is performed over a wide area of the soil to make the soil uniform state effective.
[0029]
In addition, a plurality of punch holes provided in the peripheral surface of the hopper are arranged in a row in the vertical direction, and the punch holes provided in the front and rear and the punch holes provided in the left and right are adjacent to each other with a step. By forming a staggered hole in the left and right and left holes, the soil that forms the surface layer when the amount of soil in the floor soil or covering tank decreases, the floor soil or covering tank from one hole The repeated flow phenomenon of flowing out into the trap and flowing into the hopper from the other punch hole is made effective.
[0030]
Furthermore, by providing a sensor for detecting the overflow limit state of the soil to be introduced into the hopper and stopping the introduction of the soil by turning on the sensor, the soil is put into the floor soil or the covering soil tank. When supplying, the soil can be prevented from being directly put into the tank, thereby contributing to the elimination of the uneven state of the soil.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a floor soil tank or a covering soil tank.
FIG. 2 is a cross-sectional plan view of the tank.
FIG. 3 is a vertical side view of a hopper.
FIG. 4 is a schematic view of the entire seeding plant.
FIG. 5 is an operation explanatory diagram when supplying soil in a floor soil tank or a covered soil tank.
FIG. 6 is an operation explanatory diagram when the amount of soil in the tank decreases.
[Explanation of symbols]
1 Floor soil tank 2 Cover soil tank 3 Floor soil machine 4 Cover soil machine 5 Hopper
6 Outlet 7 Outlet 7a Outlet (Outlet in front and back)
7b Punching holes (Punching holes facing left and right)
8 Drop port H Step 9 Sensor

Claims (5)

The soil is supplied from the floor soil tank (1) to the floor soil machine (3) and from the soil covering tank (2) to the soil covering machine (4) to put the soil into the seedling box and cover the soil. 1) A columnar hopper (5) having a discharge port (6) in the lower part in the center part in the inside or in the soil covering tank (2) and a large number of through holes (7) through which the soil passes freely on the peripheral surface ), And the soil is put into the hopper (5). The bottom soil tank (1) or the cover soil tank (2) has a funnel-like shape with a lower cross-sectional area and a lower opening at the lower end. The floor soil covering tank of the sowing plant according to claim 1, wherein a hopper (5) is erected. The seeding plant according to claim 2, characterized in that the lower part of the hopper (5) is narrowed and formed into an inverted trapezoidal shape in a side view, and the lower part of the hopper (5) is brought close to the dropping port (8). Floor soil cover tank. A plurality of punch holes (7) provided in the peripheral surface of the hopper (5) are arranged in a row at intervals in the vertical direction, and the punch holes (7a) (7a) provided in front and rear thereof are provided in the left and right directions. The seeding according to claim 1, wherein the holes (7b) and (7b) have a step (H) and the front and rear punch holes (7a) and the left and right punch holes (7b) are staggered. Plant floor soil cover tank. A sensor (9) for detecting the overflow state of the soil hopper (5) thrown into the hopper (5) is provided, and the soil is stopped by turning on the sensor (9). The floor soil covering tank of the sowing plant according to claim 1.

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