JPH04166019A - Seedling plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a seedling-raising plant, and more specifically, a bed soil supplying device for dropping bed soil into a seedling-raising box conveyed by a conveyor; It is equipped with a sowing device that supplies seeds to the seedling raising box, and a covering soil supplying device that supplies soil to the seedling raising box after sowing, and a feeding mechanism that feeds out the soil stored in the pit 1~, and a feeding mechanism that feeds out the soil stored in the pit 1. It consists of a lifting mechanism that lifts the soil, and a supply conveyor that can be freely reversed in forward and reverse directions and installed between two positions of the soil storage tank of the soil supply device. This invention relates to a seedling growing plant equipped with a soil supply device configured to selectively drop and supply soil to both tanks by forward and reverse driving of a conveyor.

[Conventional technology]

Conventionally, this type of seedling-raising plant was
It is known that the soil feeding device is disclosed in Japanese Patent No. 71120, and by appropriately driving a forward and reverse conveyor in the forward and reverse directions, it is possible to supply both bed soil and cover soil to storage tanks, although it has a single lifting mechanism. It was designed to supply soil efficiently and economically.

[Invention or problem to be solved]

Since the forward/reverse conveyor does not supply soil to both tanks at the same time, the width, transfer speed, etc. of the conveyor are set by determining the supply amount per unit time to one tank.

However, the reversal of the drive direction of a forward/reverse conveyor is often performed while both the lifting mechanism and the feeding mechanism are being continuously driven. Since the reversal is performed with the soil supplied before reversal still present in the section from There were many inconveniences, and there was still room for improvement.

An object of the present invention is to realize a seedling-raising plant equipped with a soil supply device that does not have the above-mentioned disadvantages.

[Means to solve the problem]

For the above purpose, the present invention provides the seedling raising plant described at the beginning, in which the driving of the feeding mechanism is stopped, and after the feeding mechanism is stopped, there is no soil in both the lifting mechanism and the conveyor. a switching control device for controlling the soil feeding device to a state in which the soil feeding mechanism is controlled to switch the drive direction of the conveyor and re-drive the feeding mechanism upon completion of the operation of the first means; It is characterized by:

Further, a second means is provided which is capable of stopping both the feeding mechanism and the lifting mechanism and presenting a state in which there is no soil on the conveyor after they are stopped, and the second means A switching control device may be configured to switch the driving direction of the conveyor and control the soil supplying device to a state where the feeding mechanism and the lifting mechanism are driven again upon completion of the operation.

[For production]

According to the structure of the first aspect, when the first means is activated, the feeding mechanism (7) first stops driving, and the soil is not supplied to the lifting mechanism. If you continue to drive the lifting mechanism and conveyor in this state, all the soil will eventually fall into the storage tank.
Both the lifting mechanism and the conveyor become empty. Therefore, in the empty state, that is, when the operation of the first means is completed, the control device reverses the conveyor and drives the feeding mechanism again, so that the conveyor is fed out by the re-driving feeding mechanism. When the soil falls onto the conveyor, there is already no soil on the conveyor, and the double supply of soil on the conveyor as in the conventional method is prevented.

According to the structure of claim 2, when the second means is activated, first both the feeding mechanism and the lifting mechanism are stopped, and the soil is not supplied to the conveyor.

If the conveyor continues to be driven in this state, the conveyor becomes empty. Therefore, in the empty state, that is, when the operation of the second means is completed, the control device reverses the conveyor and drives the feeding mechanism and the lifting mechanism again. When the soil is supplied to the conveyor "2" by re-driving the mechanism, the conveyor "2" is already devoid of soil, thereby preventing the soil from being supplied twice on the conveyor.

In the structure of claim 1, even if the feeding mechanism is re-driven when the conveyor is reversed, a non-conveying area occurs where soil is not supplied to the conveyor while the lifting mechanism is lifting the fed soil. In the structure of the second aspect, when the conveyor is reversed, both the feeding mechanism and the lifting mechanism are driven again, so that the soil is immediately supplied to the conveyor, and the above-mentioned non-conveying area does not occur.

〔Effect of the invention〕

Therefore, in the seedling raising plant according to claims I and 2, double supply of soil on the conveyor due to switching of the driving direction of the forward/reverse conveyor does not occur, and soil is supplied without loss due to soil falling off. The device has great practical advantages.

In the seedling raising plant according to claim 2, the area where the soil is not conveyed due to the reversal of the conveyor is clearly smaller than in the seedling raising plant according to claim 1, so that the efficiency of the soil supply device is further improved. Became.

〔Example〕

The drawing shows a seedling growing box ( ) being transported by a conveyor ( ]
2), a bed soil supply device (3) that supplies bed soil by dropping, and a seeding device (4) that supplies seeds to the seedling box (2) supplied with bed soil.
), and a covering soil supply device (5) that supplies soil to the seedling raising box (2) after sowing, and a bed soil supply device (3).
Soil supply device (A) that supplies soil to the and covering soil supply device (5)
A nursery plant equipped with

As shown in the figure, the soil supply device (A) is connected to a pit (6).
A feeding supply belt (feeding mechanism) (7) that feeds out the soil stored in the supply belt (7), a heket conveyor (lifting mechanism) (8
), and the upper position of the storage tank (9) of the soil supply device (3) and the soil storage tank (1) of the soil supply device (5).
It consists of a supply conveyor (11) that is installed over the upper position of 0) and can be freely reversed in the forward and reverse directions. It is configured such that it is dropped and supplied to both the tanks (9) and (1o) at the same time.

Next, the drive control structure of this soil supply device (A) will be explained.

Supply bell 1-(7) A man-off switch (13) for driving and stopping the driving motor (12), a bucket conveyor (
8) Drive motor (I4) and supply conveyor (1
1) A changeover switch (1G) for switching forward/reverse rotation and stop of the drive motor (15) is connected to the control device (17), and a switch (13) for the supply belt (7) is connected to the control device (17). A timer (18) is connected to the control device which only operates when

Both tanks (9) and (10) are provided with upper and lower limit switches (
19), (20) are provided, and these limit switches (19), (20) or the control device (17) are provided.
A main switch (21) is also provided which is connected to the main switch and controls the operation of the control device (17).

Next, the operation of this soil supply device (A) will be explained.

When the main switch (21) is turned on to start the control device (17) when the seedling raising plant is in operation, the bucket conveyor (8) is constantly driven. is being expelled,
When the soil in either tank bundling soil storage tank (9) decreases and its lower limit switch (20) is activated, the control device (17) operates to turn off the supply bells 1 to (7) human cut-off switch (13). to drive the motor (12), and also operate the changeover switch (1G) to drive the motor (15) in the direction toward the top of the supply conveyor (11) or towards the bed soil storage tank (9). Then, the soil in the pit (6) is supplied to the bed soil storage tank (9). In this state, if the lower limit switch (20) of the covered soil storage tank (10) is activated, the control device (1
7), the timer (18) is activated at the same time as the person-off switch (13) is turned off. As the time set by the timer (18) elapses, turn on and operate the human cut-off switch (I3) again, and at the same time operate the changeover switch (16) to switch the supply conveyor (11) from its two sides to the soil-covered storage tank. The control device (17) operates in such a state that it is driven in reverse in the direction of (10).

The set time of the timer (18) is such that the soil fed out from the supply bell 1-(7) falls into the bed soil supply tank (9) by the bucket conveyor (8) and the supply conveyor (11) from the time it is fed out. It is set to the travel time (tl) required until the time of supply.

In other words, when the drive direction of the supply conveyor (11) is switched, the supply conveyor (11) and the container conveyor (
In order to be able to reverse the rotation after the soil is gone in both cases 8) and 8), the supply bell 1-(7) is stopped once, so that the soil is supplied twice on the supply conveyor (1) during the reverse rotation. Reverse control is performed to prevent this phenomenon.

In addition, from the length from the top fall position (N) from the bucket conveyor (8) on the supply conveyor (l) to the side end position of the bed soil storage tank (!7), from the fall value (N) to the side end of the covered soil storage tank. If the distance to position (R) is long, the setting time of the timer (18) mentioned above may be changed to the covered soil storage tank (
10) may be determined as the same time (t2) required for falling and supplying. Alternatively, the driving direction of the supply conveyor (11) before the supply bell 1 (7) is stopped is detected by, for example, a contact sensor, and the two directions, one for the floor soil and one for the covering soil, which have been input in advance, are detected according to the detected direction. Seed timer setting time (tl
), (t2) may be controlled to be used selectively.

Then, when the upper limit switch (I9) of either storage tank, for example, the bed soil storage tank (9) is activated,
The above-mentioned series of reverse controls are performed by the action of the control device (17), and soil is supplied to the covered soil storage tank (10), and when the covered soil storage tank (10) also operates its upper limit switch (19). Next, both tanks (9),
(10) Any lower limit switch (20)
, (20) is activated, the motor (12) of the supply belt (7) is stopped, and the soil supply function is controlled to be interrupted.

The bed soil supply device (3) is equipped with a leveling brush (22) for leveling the soil supplied to the seedling box (2).
A return conveyor (23) is provided which returns the excess soil scraped out by the brush (22) to the lower end position of the bucket conveyor (8) (23). The bucket conveyor (8) is always driven while the seedling growing plant is in operation, that is, while the main switch (21) is turned on. In this embodiment, from the timer (18), the person-off switch (13), and the control device (17), the first means (B) or the person-off switch (1
3), control device (17), and changeover switch (16)
) to a switching control device (C), respectively.

In addition, by adopting the supply conveyor (11), compared to the means for supplying soil to each tank (9), (10) by providing two routes for the soil lowering chute part of the lifting mechanism (8), the device is This reduces the height of the vehicle.

[Another example]

The set time of the timer (18) is set until the soil discharged from the bucket conveyor (8) reaches the far end position (1 or R) of the supply conveyor (11) from the falling position device (N). Set the required travel time (t3) and fill the tank (9
or 10) by the operation of the lower limit switch (20) and the reverse control of the control device (17), both the supply bell 1-(7) and the packet conveyor (8) are stopped, and then the travel time (13) is stopped. ), the supply bell 1-(7) is driven in reverse while the supply bell 1-(7) is driven in reverse.
and the bucket conveyor (8) may be driven again.

In this case, a manual switch (24) will be provided to switch between driving and stopping the bucket I/conveyor (8) (imaginary line in the drawing), and this manual switch (24) and supply bell I-(7) will be installed. a second means (D) from a person-off switch (13), a timer (18), and a control device (17);
Or the two-person cut-off switch (24).

(13), control device (17), and changeover switch (
16) and 16) respectively constitute a switching control device (C).

In addition, in this embodiment, a sensor (for example, an optical sensor) (S ), the operation of this sensor makes it possible to indicate that the supply belt (7) has stopped and that there is no soil in both the bucket and conveyor (8) and the supply conveyor (11). The first means (B) may be configured as follows.

Furthermore, the supply conveyor (11) may be provided with a sensor that detects the downward deflection of the conveyor belt, and this sensor may constitute the first means (B).

Incidentally, although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by the reference numerals.

[Brief explanation of the drawing]

The drawing is an overall configuration diagram showing an embodiment of a seedling raising plant according to the present invention. (1)... Conveyor, (2)...
Seedling box, (3)...Bed soil supply device, (4)...
... Seeding device, (5) ... Soil covering supply device, (
6)...Pit, (7)...Feeding mechanism, (
8)... Lifting mechanism, (9), (10)...
... Tank, (11) ... Supply conveyor, (
A)... Soil supply device, (B)... First means, (C)... Switching control 5

Claims (1)

[Claims] 1. A seedling growing box (2) transported by a transport conveyor (1)
A bed soil supply device (3) that drops and supplies bed soil to the soil, a seeding device (4) that supplies seeds to the seedling raising box (2) supplied with bed soil,
and a covering soil supply device (5) that supplies covering soil to the seedling raising box (2) after sowing, and a feeding mechanism (7) that feeds out the soil stored in the pit (6);
A feeding conveyor (8), which can freely rotate in the forward and reverse directions, is installed across a lifting mechanism (8) that lifts the soil fed out from the soil supply device (3), and a position above the soil storage tank (10) of the soil supply device (3).
11), the soil transported by the lifting mechanism (8) is selectively dropped and supplied to both the tanks (9) and (10) by forward and reverse driving of the conveyor (11). A seedling raising plant is provided with a soil supply device (A) configured as above, wherein the drive of the feeding mechanism (7) is stopped, and after the drive of the feeding mechanism (7) is stopped, and the lifting mechanism (8) and the conveyor ( 11) is provided with a first means (B) capable of presenting a state in which there is no soil, and upon completion of the operation of the first means (B), the driving direction of the conveyor (11) is switched and the direction of the conveyor (11) is switched. a switching control device (C) that controls the soil supply device (A) to a state where the feeding mechanism (7) is re-driven;
A seedling raising plant consisting of. 2. Seedling box (2) transported by conveyor (1)
A bed soil supply device (3) that drops and supplies bed soil to the soil, a seeding device (4) that supplies seeds to the seedling raising box (2) supplied with bed soil,
and a covering soil supply device (5) that supplies covering soil to the seedling raising box (2) after sowing, and a feeding mechanism (7) that feeds out the soil stored in the pit (6);
A feeding conveyor (8), which can freely rotate in the forward and reverse directions, is installed across a lifting mechanism (8) that lifts the soil fed out from the soil supply device (3), and a position above the soil storage tank (10) of the soil supply device (3).
11), the soil transported by the lifting mechanism (8) is selectively dropped and supplied to both the tanks (9) and (10) by forward and reverse driving of the conveyor (11). A seedling-raising plant provided with a soil supply device (A) configured as above, wherein both the feeding mechanism (7) and the lifting mechanism (8) are stopped, and after they are stopped, and the above-mentioned A second means (D) capable of showing a state in which the soil on the conveyor (11) is removed is provided, and when the operation of the second means (D) is completed, the driving direction of the conveyor (11) is switched and The feeding mechanism (7) and the lifting mechanism (8
), comprising a switching control device (C) for controlling the soil supply device (A) to a state where the soil supply device (A) is re-driven.