JP3236673B2 - Seeding plant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sowing plant.

[0002]

2. Description of the Related Art Conventionally, as one form of a seeding plant, a soil filling device for filling soil into a seedling pot contained in a tray to be conveyed, and a soil in a seedling pot conveyed from the soil filling device. Some include a repressor / seeding device for repressing and sowing, and a covering device for covering soil in a seedling pot conveyed from the repressor / seeding device.

[0003]

However, in the above-mentioned seeding plant, the transfer of the tray in the soil filling device and the covering device is a continuous transfer, but the transfer of the tray in the pressure reduction / seeding device is performed with a reliable pressure reduction operation and a seeding operation. When the seeding plant operation switch is turned on, if the previous tray remains in the soil filling device or the repressor / seeding device, the intermittent transport is used to ensure that However, there was a problem that the seeding work efficiency was reduced as a whole due to traffic congestion.

[0004]

Therefore, according to the present invention, a soil filling device for filling soil into a seedling pot placed on a tray to be conveyed, and a seedling pot conveyed from the soil filling device are provided. A seeding plant comprising a crushing and sowing device for crushing and sowing the soil in the plant, and a covering device for burying the seedling pot conveyed from the crushing and sowing device. A tray detection sensor is attached to each of the start end and the end of the soil filling device, and when both sensors detect a tray, the driving unit of the soil filling device is stopped via the control unit. To provide a seeding plant.

[0005]

[Function] When seeding in a seedling pot, when the operation switch of the seeding plant is turned on, the tray on which the seedling pot is placed is transported to the soil filling device, and the tray is placed in the seedling pot by the same soil filling device. The soil is filled, and then the tray filled with the soil in the seedling pot is transported to the repressing and sowing device by the soil filling device, and the soil filled in the seedling pot is repressed by the repressing and sowing device. At the same time, the seeds were sown on the same soil, and the trays sown in the seedling raising pot were then transferred from the repressor / seeding device to the soil covering device,
The soil covering device covers the seeds sown in the seedling raising pot.

Here, when the operation switch is turned on,
When the tray detection sensors attached to the start end of the crushing and sowing device and the start end of the soil filling device, respectively, detect both trays, the drive unit of the soil filling device is stopped via the control unit, No tray loading or filling operations are performed.

[0007] Therefore, if the tray in the previous sowing operation remains in the soil filling device or the repressor / seeding device,
The drive units of the crushing / seeding device and the soil covering device are operated, and after the seeding and soil covering of the remaining trays are performed, the trays are carried out. Then, when the tray detection sensor attached to the start end of the crushing and sowing device detects that no tray remains, the drive unit of the soil filling device operates via the control unit, and the loading and filling operation of the tray is performed. Be started.

[0008]

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

A shown in FIG. 1 is a seeding plant according to the present invention. The seeding plant A is composed of a soil filling device 1, a pressure reduction / seeding device 2, and a soil covering device 3, and is mounted on a tray T. Seeding can be performed on the seedling raising pot P placed.

Here, the tray T and the seedling growing pot P will be described. As shown in FIG. 8, the tray T is formed of a lightweight and durable synthetic resin or the like so as to be suitable for loading and transport. Many drainage holes H are formed at the bottom.

The seedling pot P has a plurality of cell portions S formed of a flexible material, and a drain hole h is formed at a bottom portion so that seeds can be sown one by one in each cell portion S and seedlings can be raised. Is formed.

As shown in FIG. 1, the soil filling apparatus 1 is provided on a tray transporting section 10 for transporting a tray T, and in each cell section S of a seedling growing pot P placed and transported on the tray T. The filling unit 11 for filling the soil, the leveling unit 12 for removing and leveling the soil deposited on the seedling raising pot P filled with the soil by the filling unit 11, and the leveling unit 12 for leveling. An irrigation section 13 for applying water to each cell section S of the seedling raising pot P is arranged in order from the start end side of the tray transport section 10 to the end side.

The filling section 11 is composed of a hopper 14 for accommodating soil and a soil filling conveyer 15 disposed immediately below the hopper 14, and a soil supply port opened at the bottom of the hopper 14. The soil is dropped onto the starting end side of the soil filling conveyor 15 and supplied, and the soil filling conveyor 15 is supplied.
The soil is transported evenly to a predetermined thickness (amount), and the soil is placed in the seedling pot P which is placed and transported on the tray T by the tray transport unit 10 from the end side of the soil filling conveyor 15. And the soil is filled in the cell portion S of the same seedling raising pot P.

Further, as shown in FIG.
The leveling brush 12a and the leveling plate 12b are provided so that the soil G filled in the cell portion S of the seedling raising pot P can be leveled while leveling.

A tray mounting portion 16 is provided at the start end side of the tray transport portion 10, and the trays T on which the seedling growing pots P are mounted are mounted on the tray mounting portion 16, and each tray T is placed in a tray. Transport unit
10 is used to convey sequentially.

[0025] As shown in FIG.
The filling soil in each cell portion S of the seedling raising pot P placed and transported on the tray T is suppressed on the tray transporting section 20, and a seeding recess (not shown) is formed on the top soil of the same filling soil.
And a sowing unit 22 for sowing seeds one by one in the sowing recess formed by the suppression unit 21, which are sequentially arranged from the start end side of the tray transfer device 20 toward the end side. are doing. 21a is a crushing roller, 21b is a crushing roller
This is a pressure-reducing device for forming a seeding concave portion protruding from the peripheral wall of 21a.

The seeding section 22 drops seeds one by one from the seed hopper containing the seeds into the left and right horizontal rows of cell portions S of the seedling pot P by means of a sowing tray, and intermittently moves the seedling pot P intermittently. The cell portion S is moved forward at every center-to-center distance in the front-rear direction.

Further, the sowing unit 22 is provided with a sowing operation detecting sensor 57 for detecting the sowing operation of the sowing plate and a seedling raising detecting sensor 58 for detecting the position of the seedling growing pot P.

A control unit 25 for controlling each drive unit of the seeding plant A is mounted on the lower wall of the tray transport unit 20, and an operation panel unit 26 is mounted on a front wall of the control unit 25. Operation switch 26a provided in section 26, filling section automatic / manual changeover switch 26b, irrigation switch 26c, seeding switch 26d
, An earth cover automatic / manual changeover switch 26e and the like are connected to the input side of the control unit 25.

As shown in FIG. 1, the soil covering device 3 is provided on a tray transporting section 30 on a seed sown in each cell section S of a seedling growing pot P placed and transported on a tray T. A soil covering part 31 for releasing soil and covering the soil, and a watering part 32 for applying water to the seedling growing pot P covered with the soil covering part 31 are sequentially arranged from the start end side to the end side of the tray transport unit 30. It is composed.

The soil covering section 31 is composed of a hopper 33 for accommodating soil and a soil covering conveyor 34 disposed immediately below the hopper 33.

As shown in FIG. 3, each of the tray transport sections 10, 20, 30 has a plurality of roller support shafts 41 provided between the pair of left and right frames 40, 40 at predetermined intervals in the front-rear direction. Each of the roller support shafts 41 is operatively connected to a drive mechanism (not shown), and the tray drive rollers 42, 42 attached to the left and right sides of each roller support shaft 41 are rotated by the drive mechanism.
2, 42, the tray T placed on it can be transported.

Then, the tray transport section 10 of the soil filling device 1
And the tray transport unit 30 of the soil covering device 3 can continuously transport the tray T at a constant speed, while the tray transport unit 20 of the pressure reduction and seeding device 2 transports the tray T intermittently. The seeding into the seeding recess is ensured.

Further, each of the tray transport sections 10, 20, 30 has a structure shown in FIG.
As shown in, tray detection sensors 50, 51, 52, 53, respectively
54, 55, and 56 are attached so that the conveyed tray T can be detected.

That is, the tray transport section of the soil filling device 1
As shown in Fig. 1 and Fig. 2, the soil filling conveyor
Two tray detection sensors 50 and 51 are disposed immediately below the end side of the tray 15 and the tray detection sensors 50 and 5 are provided.
1 is a pair of left and right frames as shown in FIGS.
Rotating shafts 50a and 51a rotatably mounted between 40 and 40, and a tray sensing arm attached to each left and right side of each rotating shaft 50a and 51a.
50b, 50b, 51b, 51b, pressing members 50c, 51c attached to the left ends of the rotating shafts 50a, 51a, and O in conjunction with the pressing members 50c, 51c.
The switches 50d and 51d are attached to the left frame 4c so as to perform N-OFF operation.

Then, between the rotating shafts 50a, 51a and the winding spring retaining pieces 50e, 51e attached to the left frame 40, winding springs 50f, 51f are interposed to press the pressing members 50c, 51c. But switch 50
By pressing the contacts 50g, 51g of d, 51d, the turning shafts 50a, 51a are urged to turn the switches 50d, 51d off. That is, in the present embodiment, in FIG.

In this manner, the tray transport roller 4
When the tray sensing arms 50b, 50b, 51b, 51b are pushed downward and rotated by the own weight of the tray T conveyed by the transfer rollers 2, 42, the rotation shafts 50a, 51a rotate in conjunction therewith. In conjunction with this, the pressing members 50c, 51c rotate against the bias of the winding springs 50f, 51f, and the pressing of the contacts 50g, 51g is released.
The switches 50d and 51d are turned on.

In this embodiment, as shown in FIG. 2, the tray detection sensors 50 and 51 are disposed on the starting end side of the soil filling conveyer 15 from the end, so that the rear end of the tray T is the same. At a position slightly closer to the start end than the end of the conveyor 15,
The switches 50d and 51d of the two sensors 50 and 51 are turned off so that the soil G is not supplied from the soil filling conveyor 15 to the rear end of the seedling pot P on the tray T. The rear end portion is filled with surplus soil from the leveling part 12 so that the surplus soil is not discharged outside from the seedling raising pot P during the leveling operation by the leveling part 12. 15a is a driving roller and 15b is a driven roller.

In this way, it is possible to eliminate the necessity of collecting the soil and efficiently fill the seedling raising pot P with the soil.

As shown in FIG. 1, the tray detection sensor 52
Is disposed at the end of the tray transport section 10, and the tray detection sensor 53 is disposed at a position of the tray transport section 20 located immediately below the pressure reducing section 21. The sensors 54 and 55 are disposed at a position of the tray transport unit 30 located immediately below the end side of the soil cover conveyor 34 of the soil cover unit 31. A tray detection sensor 56 is provided at the end of the tray transport unit 30. It is arranged in the department.

The tray detection sensors 52, 53, 5
4, 55 and 56 are configured in the same manner as the tray detection sensors 50 and 51, so that the tray T is detected and each switch (not shown) is turned on.

Each of the tray detection sensors 50, 51, 52, 53, 5
The switches 4, 55, and 56 are connected to the input side of the control unit 25, respectively.

Next, the control of the seeding plant A configured as described above will be described with reference to FIGS.

That is, as shown in FIG. 4, when the operation switch 26a is turned on (60Y), the soil filling operation (61), the crushing / seeding operation (62), and the soil covering operation (63) are started in parallel. Is done.

Then, as shown in FIG.
(61) means that the tray detection sensor 53 attached to the tray transport section 20 of the pressure reduction and seeding apparatus 2 detects the tray T (64Y), and
When the tray detection sensor 52 attached to the end of the tray transport unit 10 of the soil filling device 1 detects the tray T (65Y)
Then, all the driving units of the filling unit 11, the leveling unit 12, and the watering unit 13 of the soil filling device 1 are stopped (66).

When the tray detection sensor 53 of the pressure suppression and seeding device 2 does not detect the tray T (64N), or when the tray detection sensor 52 of the soil filling device 1 does not detect the tray T (65N), The drive unit of the tray transport unit 10 operates (6
7), Filling section automatic / manual changeover switch 26b is turned to automatic side
When the tray detection sensors 50 and 51 of the filling device 1 are turned on (69Y), the soil filling conveyor 15 is operated, the soil is filled (70), and the irrigation switch is turned off.
If N (71Y), the watering section 13 is activated to water the seedling raising pot P (72).

Further, when both the tray detection sensors 52 and 53 detect the tray T (65Y), all the driving units of the filling unit 11, the leveling unit 12, and the irrigation unit 13 of the soil filling device 1 are stopped. (66).

Further, the tray detection sensors 50 and 51
If no is detected (69N), the soil filling conveyor 15 remains stopped (73).

When the filling section automatic / manual changeover switch 26b is switched to the manual side (69N), the soil filling conveyor 15 is driven (70).

When the irrigation switch is turned off
(71N), the irrigation unit 13 remains stopped (74).

As shown in FIG. 6, the suppression / seeding operation (62)
Is (80Y) when the seeding switch 26d is ON
When the seedling raising detection sensor 58 detects the seedling raising pot P (81Y), the seeding plate is driven, the tray transport unit 20 is stopped (82), and the seeding operation detection sensor 57 detects the seeding operation performed by the seeding operation. Then (83Y), the sowing plate is stopped (84).

As shown in FIG. 7, in the soil covering operation (63), when the tray detection sensor 56 disposed at the end of the tray transport unit 30 detects the tray T (90Y), the soil covering part 31 of the earth covering device 3 All the driving units of the watering unit 32 are stopped (91).

When the tray detection sensor 56 does not detect the tray T (90N), the tray transport section 30 operates (9).
2), soil cover automatic / manual switch 26e is set to automatic side
When the tray detection sensors 54 and 55 detect the tray T (94Y), the soil covering conveyor 34 operates to cover the soil (95), and when the irrigation switch 26f is turned on, (93Y). (96Y), the watering section 32 is driven to water the seedling raising pot P (97).

Further, when the tray detection sensor 56 detects the tray T (90N), all the driving units of the soil covering unit 31 and the watering unit 32 of the soil covering device 3 are stopped (91).

When the tray detection sensors 54 and 55 are
If no is detected (94N), the earthing conveyor 34 remains stopped (98).

When the earth cover automatic / manual changeover switch is set to the manual side (93N), the earth cover conveyor 34 is driven (95).

When the irrigation switch 26f is turned off (96N), the irrigation section 13 remains stopped (99).

[0048]

According to the present invention, the following effects can be obtained.

That is, according to the present invention, when starting the repressing / seeding device, if the previous tray remains in the soil filling device or the repressing / seeding device, the tray is not loaded into the soil filling device or the filling operation is performed. As a result, the tray is not congested in the suppression / seeding device, the continuous operation of the seeding operation can be smoothed, and the efficiency of the seeding operation can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a seeding plant according to the present invention.

FIG. 2 is a side view of a tray detection switch.

FIG. 3 is a partially cutaway perspective view of the tray detection switch.

FIG. 4 is an operation flowchart of a seeding plant.

FIG. 5 is a flowchart of a soil filling operation.

FIG. 6 is a flowchart of a suppression / seeding operation.

FIG. 7 is a flowchart of soil covering operation.

FIG. 8 is an explanatory perspective view of a tray and a seedling raising pot.

[Explanation of symbols]

 A seeding plunger 1 soil filling device 2 packer / seeding device 3 soil covering device

Claims (1)

(57) [Claims] 1. A soil filling device for filling soil in a seedling pot placed on a tray that is conveyed, and crushing and sowing the soil in the seedling pot that is conveyed from the soil filling device. A seeding plant comprising a crushing and sowing device, and a soil covering device for covering soil in a seedling pot conveyed from the crushing and sowing device, comprising: a starting portion of the crushing and sowing device and an ending portion of a soil filling device. To
A seeding plant, wherein a tray detection sensor is attached, and when both sensors detect a tray, the drive unit of the soil filling device is stopped via the control unit.