JPH08242617A - Covering soil feeder for raising seedling seeder - Google Patents

Abstract

PURPOSE: To provide the subject covering soil feeder designed to recover spilled wet soil after soil covering using a receiving box by switching a changeover chute on the recovering/receiving box side when an irrigation is to be conducted prior to soil covering process, and to circulatingly feed the spilled soil after soil covering into a feed hopper using a soil feeder by switching the changeover chute on the soil feeder side when an irrigation is to be conducted after soil covering process, in a raising seedling seeder. CONSTITUTION: In this covering soil feeder equipped with a feed hopper 9 on the upper part of a device 10 to cover seedling boxes after seeding with soil and with a discharge chute 11 to discharge and guide the soil spilled from the seedling boxes on the lower part, the discharge chute 11 is furnished with a soil discharge changeover means to selectively switch between a soil feeder 13 to receive the spilled soil from the seedling boxes and circulatingly feed the spilled soil into the feed hopper 9 and a recovering/receiving box 17 to separately receive and recover the spilled soil from the seedling boxes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a covering soil supplying device in a seedling raising seeding machine.

[0002]

2. Description of the Related Art Conventionally, when water is sprinkled in a seedling raising seedling machine before a soil covering step, the spilled soil after covering the soil is in a wet state. When the soil in a wet state is circulated by the soil supplying device in this way, it becomes difficult to feed the soil by the soil covering device, and thus it becomes impossible to collect and circulate the soil.
The soil supply device was removed from the soil cover device and exclusively collected in the collection box.

Further, when irrigating water after the soil covering process, a soil supplying device is attached to receive and collect the spilled soil after the soil covering and to circulate and supply the soil to the soil covering device.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to facilitate the switching of soil discharge between the soil supply device and the recovery receiving box without attaching or detaching the soil supply device. That is, when irrigating in the previous step of the soil covering step in the seedling raising machine, switch the switching shoot to the collection receiving box side, so that the spilled wet soil after covering the soil is collected in the collection receiving box, Also, when irrigation is performed after the soil covering process, the changeover switch is switched to the soil supplying device side so that the spilled soil after the soil covering is circulated and supplied to the supplying hopper by this soil supplying device. is there.

In order to achieve such an object, the present invention takes the following technical means.

[0006]

[Means for Solving the Problems] That is, the technical means according to the present invention is a soil covering device 1 for covering soil on a seedling box after sowing.
0 in the upper part and a discharge hopper 11 in the lower part for discharging and guiding the soil spilled from the seedling box, in the cover soil supplying device, the discharge shoe receives spilled soil from the seedling box. Soil discharge switching means for selectively switching between a soil supply device 13 for circulating supply to the supply hopper and a recovery receiving box 17 for separately receiving and recovering spilled soil from the seedling box are provided. To do.

[0007]

When the water is irrigated before the soil covering process, the seedling box transferred by the conveyor is first filled with the bed soil, and then crushed and leveled before irrigation. Then, the seeds are taken over by the seeding conveyor, and then covered with soil to complete the seeding work. When irrigation is performed after the soil covering process, the seedling box is filled with bed soil, crushed and leveled, then seeded, covered and irrigated, and the seeding work is completed.

As described above, when irrigating water before the covering soil stroke, the switching shoe is switched to the side of the collecting box, and the spilled wet soil after covering the soil is collected in the collecting box. When irrigation is performed after the covering soil process, the switching shoe is switched to the soil supplying device side, and the spilled soil after covering the soil is returned to the supplying hopper by the soil supplying device.

[0009]

Therefore, according to the present invention, it is possible to easily switch the discharge switching shoe of the soil cover device between the soil supplying device side and the recovery receiving box side by pre-irrigation and post-irrigation. Since it is wet soil, it is collected in the collection receiving box, and in the case of post-irrigation, it is dry soil, so it is collected by the soil supply device and returned to the supply hopper.
The spilled soil can be collected only by the switching operation of the discharge switching shoe without attaching or detaching the soil supplying device as in the conventional case.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the whole seedling raising seeding machine has a first conveyor 1, a seeding conveyor 2 and a second conveyor 3 for transferring seedling boxes, which are sequentially arranged from the transfer side to the transfer side. In this configuration, the conveyors 1, 2, 3 are successively taken over and the containers such as the seedling box K are transferred.
Then, on the first conveyor 1, a bed soil supply device 4, a crushing / leveling device 5, and an irrigation device 6A are sequentially arranged,
A seeding device 7 is arranged on the seeding conveyor 2. A soil cover supply device 8 and a watering device 6B are arranged on the second conveyor 3. The irrigation device 6A is configured to operate at the time of sowing for paddy rice in which seedling boxes are uniformly sown in a mat shape, and irrigate before seeding. The irrigation device 6B is operated at the time of sowing for vegetables to be sown for each cell pot, and is configured to irrigate after sowing and covering with soil.

With this structure, the seedling box placed on the upper end of the first conveyor 1 on the transfer side is first packed with the bed soil by the bed soil supply device 4 and squeezed by the soil leveling / leveling device 5. In the case of sowing for paddy rice, the water is irrigated by the operation of the irrigation device 6A, then taken over by the seeding conveyor 2 and seeded by the seeding device 7, and then the second conveyor 3 And the soil covering device 8 covers the soil, and the seeding work is completed. In addition, when the seeding work is seeding for vegetables, etc., when the seedling box is filled with bed soil, the seedling box is crushed and leveled by the crushing and leveling device 5, and
Next, seeding is performed by the seeding device 7, and then soil is covered and watered by the soil cover supply device 8 and the irrigation device 6B to complete the seeding operation.

The second conveyor 3 includes left and right frames 3a,
A transfer roller 3b consisting of a cylindrical rubber roller between 3a,
A plurality of shafts 3b, ... Are rotatably driven by the motor. The soil cover supply device 8 mainly
A soil covering device 10 having an upper soil feeding hopper 9 and a feeding belt 10a for feeding the soil from the hopper quantitatively, and a discharge shoe 1 for discharging and guiding the spilled soil from the seedling box after the soil covering.
It is composed of 1 and 1. Then, the discharge shunt 11 receives the spilled soil from the seedling box and receives the hopper 9 from the supply hopper 9.
The soil supply device 13 that circulates the soil and the recovery receiving box 14 that separately receives and collects the spilled soil from the seedling box are provided with a switching shoe 12 that selectively guides the discharge. This switching shoe 12 is configured to be swingable around the fulcrum Q, and when this is switched to the position (a), the spilled soil is discharged and guided into the recovery funnel 14 of the soil supplying device 13, and conversely (rotation). ) The spilled soil is discharged and guided into the collection receiving box 17 when switched to the position. The soil supply device 13 includes a recovery funnel 14, a bucket elevator 15, and a reduction cylinder 16. The spilled soil from the seedling box discharged and guided into the recovery funnel 14 is pumped upward by the bucket elevator 15. After that, the hopper 9 is fed through the reduction cylinder 16.
It is a configuration that is returned to the inside. In addition, when supplying soil to the supply hopper 9, the soil may be directly charged from here or the recovery funnel 14 may be used.
You may throw in from.

The seeding conveyor 2 includes right and left frames 2a,
A transfer belt 2d is wound around a pair of front and rear rollers 2b and 2c pivotally supported between 2a. And this conveyor 2
A continuous drive mechanism for continuously transferring seedling boxes for sowing seedling boxes in a mat shape and an intermittent drive mechanism for intermittent transfer of seedling boxes for seeding cell pots are interlockingly connected to the drive shaft of.

Next, the structure of the seeding device 7 mounted on the seeding conveyor 2 will be described. That is, the base side of the suction nozzles 19, 19, ... Which suck the seeds S ... one by one are attached to the air tank 20. Air tank 20
Is connected to a vacuum device V, and suction nozzles 19,
The vacuum device V suction-operates in association with the movement of the seeds 19 on the seed receiving gutter 21 containing the seeds S, and the seeds S contained in the receiving gutter 21 are sucked at the tip end of the suction nozzle 19. Adsorb one grain at a time. Rotating arms 22a, 22a are rotatably attached to both left and right sides of the air tank 20, and the rotating arms 22a, 22a are integrated with the rotating shafts 22b, 22b. And an operating arm 22c is integrally attached to one of the rotating shafts 22b. The operating arm 22c is attached to the air cylinder C.
It is rotatably connected to the first piston C1a.

Further, rods 22e are integrally attached to the left and right sides of the air tank 20 via brackets 22d, and the tip end side of the rod 22e is supported by a support member 22f fixed to the machine frame and a ball. It is connected via a joint 22g so as to be rotatable and slidable in the axial direction of the rod 22e. Then, as described above, the suction nozzles 19, 1
When the seeds S ... Are adsorbed to the tip openings of the nozzles 9, ...
Is located above the funnels 23, 23, ... Having the corresponding receiving holes 23a, 23a ,. Then, the operation of the vacuum device V is stopped, and then the air is discharged from the tip opening of the nozzle 19, and the needle inside the nozzle 19 is connected to each nozzle 19.
Protruding from the mouth of the. As a result, the seeds S ... Adsorbed to the tip end of the nozzle 19 are released, and fall into the funnel 23 one by one. Seeding hoses 24, 24, ... Are connected to the outlets of the receiving holes 23a, 23a ,.
5, 25, ... Are attached. Thus, the seeds S ... Dropped into the funnel 23 pass through the hoses 24, 24, ... And are discharged from the lower end openings of the sowing nozzles 25, 25.
As described above, the seeding device 7 includes the suction nozzles 19, 1
, 9 adsorb seeds one by one and release them to the sowing position.

The seed receiving gutter 21 is made of an elastic member E.
The vibrator B is vibrated by the vibrator B. Further, the seeds S are supplied to the receiving trough 21 from the seed tank 21a that stores the seeds to the seed supply pipe 21.
It is supplied to the inside of the receiving gutter 21 via b, so that the level is always constant.

The seeding nozzles 25, 25, ... Are fixed to a nozzle fixing plate 26, and both ends of the nozzle fixing plate 26 are connected to a connecting member 27 which is fixed to a connecting rod 27 by bolts so as not to slide. It is fixed with bolts. The connecting rod 27 is supported by the guide body 27b so as to be vertically slidable,
The upper end of the connecting rod 27 is connected to the pistons C2a, C3a of the seeding nozzle up / down cylinders C2, C3, and the seeding nozzles 25, 25, ... Move up and down by the pistons C2a, C3a simultaneously projecting or retracting. It is a composition.

On the upstream side of the seeding nozzles 25, 25, ... in the transfer direction, the seeding hole shaped bodies 28, 28, ... Are provided in the same number as the seeding nozzles 25, 25 ,.
6 fixed. The seed hole moldings 28, 28, ...
Has a conical bottom end and is fixed to the nozzle fixing plate 26 in accordance with the arrangement pitch of the pots p, p, ... Immediately before the pots p, p ,.

When sowing in a cell pot-shaped seedling raising box, the seeding nozzle upper and lower cylinders C2 and C3 have a piston C2.
a, C3a projecting and the fixed plate 26 is moved downward, the seeding hole molded bodies 28, 28, ... Are being transferred downward. , are moved downward toward the holes p3, p3, ... Of the pots p, p ,. Then, the seeding nozzles 25, 25, ... Also move down to the respective seeding holes H, H, ... In the pots p, p, ... Formed in the previous step, and one seed is placed in the seeding holes H, H ,. The seeds are sown one by one.

As described above, when sowing seedlings in a cell pot-shaped nursery box such as when sowing vegetables, the seed hole forming bodies 28, 2 are used.
It is necessary to form the sowing holes H, H, ... on the upper surface of the bed soil in the pot by moving 8, ... Up and down, and when the bed soil is wet by watering before seeding, the wet bed soil is a sowing hole. Since it adheres to the molded bodies 28, 28, ... Or hardens the floor soil by irrigation, etc., it hinders the formation of the sowing holes H, H ,.
There was a problem that watering was inevitable after sowing. Further, when sowing in a mat shape such as sowing for paddy rice, at least there is a possibility that the sowed seeds may spill from the nursery box when watering is performed after sowing, and it is better to do watering before sowing. This invention is a seedling raising seedling machine capable of both pre-irrigation and post-irrigation for seeding described above, and by providing a discharge switching shoe 12 in the cover soil supply device 8, it is possible to effectively collect spilled soil from the seedling box. It was made possible.

The seeding device 7 is constructed so that the whole seeding section can be moved up and down with respect to the seeding conveyor 2. That is, the sliding body 2 fixed to the frame 7a of the seeding device 7
9 is vertically slidably fitted to the guide rod 30 fixed to the frame 2a of the seeding conveyor 2, and the piston C4a of the seeding device vertical adjustment cylinder C4 mounted on the frame 2a is seeded. The seeding device 7 is connected to the frame 7a of the device 7 and the piston C4a is projected or retracted so that the whole seeding device 7 is vertically adjusted with respect to the seeding conveyor 2. Such vertical movement adjustment is adjusted according to the height of the seedling raising pot (for example, the pot P _{1 in} FIGS. 6 and 7 to the pot P _{2 in} FIGS. 8 and 9) that differs depending on the form and type. Note that this vertical movement adjustment may use an adjustment mechanism such as a rotating shaft provided with a handle.

Next, FIG. 10 will be described. The vacuum seeding device has nozzles 19, 19, ... and receiving holes 23a, 23a ,.
With a seed receiving funnel 23 having a hole 31 at regular intervals.
A perforated plate 31 having a, 31a, ... Is provided so as to be movable in the left-right direction, so that the seeding holes of the tray can be seeded in a staggered manner. That is, by moving the punching plate 31 to the left (L) position, for example, the seeding holes H1, H3, H in the first row
Seed in No. 5 and by moving the punching plate 31 to the right direction (R) position, sowing in the second row seeding holes H2, H4, H6, and moving to the left direction (L) position again, three lines. As a whole, so that the seeds can be sown in the zigzag holes H1, H3, H5.

In the conventional seeding on the cell tray, it was only possible to seed all the seed holes. Therefore, in the case of fruit and vegetables such as tomatoes, when the seedlings were raised in a 128-well tray or the like, the density was high, and the seedling raising period was often lengthened. On the other hand, a low-density tray such as a 72-hole tray was used, but the capacity of the cell becomes large, so there is a problem in forming the root pot. Therefore, if the 128-well tray can be sown in a zigzag manner as described above, these problems can be solved at once.

As shown in FIGS. 11 and 12, the soil filling guide cover 32 having the holes 32a, 32a, ... Staggered.
By covering the cell tray on the cell tray and passing it below the floor soil supply device 4, the soil can be filled in a staggered manner,
In the case of staggered sowing, waste of soil can be eliminated.

[Brief description of drawings]

[Figure 1] Side view of the main part of a seedling raising seeder

FIG. 2 is a side view of the soil cover feeder.

FIG. 3 is a rear view of the main part of the same as above.

FIG. 4 is a cutaway side view of the seeding device.

FIG. 5 is a cutaway rear view of the same as above.

FIG. 6 is a side view of the seeding device.

[Fig. 7] Same as the rear view

FIG. 8: Side view of the same as above

[FIG. 9] Same as above, rear view

FIG. 10 is an operation explanatory view of the seeding device.

FIG. 11 is a plan view of the soil filling guide cover.

FIG. 12 is a side view of the same as above.

[Explanation of symbols]

1 1st conveyor 2 Seeding conveyor 3 2nd conveyor 4 Bed soil supply device 5 Squeezing and leveling device 6A Irrigation device 6B Irrigation device 7 Seeding device 8 Soil supply device 9 Supply hopper-10 Soil cover device 11 Discharge shoe-
To 12 Switching shoot 13 Soil supply device 14 Recovery funnel 15 Bucket elevator 16 Reduction cylinder 17 Recovery receiving box K Seedling box

Claims (1)

[Claims] 1. A soil covering device 10 for covering soil on a seedling box after sowing.
In the cover soil supplying device provided with a supply hopper 9 in the upper part of the above, and a discharge shoe 11 in the lower part for discharging and guiding the soil spilled from the seedling box, the discharge shoe receives the spilled soil from the seedling box and Soil discharge switching means for selectively switching between a soil supply device 13 for circulating supply to a supply hopper and a recovery receiving box 17 for separately receiving and recovering spilled soil from the seedling box are provided. Cover soil supply device for seeding machine for raising seedlings.