JPH0764421B2 - Nursery box assembly carrier at nursery facility - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention performs a series of sowing operations such as floor soil filling, sowing, and soil covering in a nursery box, and the temperature, humidity, etc. of the seeded nursery box. The present invention relates to a device for transporting a set of seedling raising boxes in which a plurality of empty seedling raising boxes are stacked in a seedling raising facility for promoting seed germination by controlling the seedlings.

[Prior art]

In order to produce rice seedlings for rice planting and vegetable seedlings for transplanting, a method of sowing and germinating in a nursery box is adopted.

[Problems to be solved by the invention]

In such a method, since it is necessary to perform a series of seeding operations such as floor soil filling into seedling raising boxes, sowing, irrigation, and covering soil, a large space is required for storing a large number of seedling raising boxes. And it took a lot of work.

[Means for solving problems]

The present invention has been made in view of such circumstances, stock an empty nursery box on the upper floor, so as to perform a series of seeding work downstairs, while enabling to raise seedlings in a narrow place , A nursery box set consisting of multiple empty nursery boxes
The purpose is to provide a device that automatically conveys downstairs.

The seedling raising box assembly / transport device in the seedling raising facility according to the present invention stocks a seedling raising box set (10) formed by stacking a plurality of empty seedling raising boxes on the upper floor, and uses a seeding apparatus (50) downstairs to raise each seedling raising box. Lift that has a carry-in port (33a) on the upper floor and a carry-out port (33b) on the downstairs, and that can raise and lower the nursery box group (10) on the upper floor, in the nursery box group transporting device in the seedling raising facility The lowering lift (30) placed on the table (32) to lower downstairs, and the seedling raising box set (10) stocked on the upper floor, which is arranged opposite to the carry-in port (33a), are in the cylinder (24a). And the carry-out port (33b) that is transferred onto the lift table (32) by the operation of
And a carry-out device that is arranged to face the lift table (32) across the lifting area, and carries out the seedling raising box set on the lift table (32) from the carry-out port (33b) by the operation of the cylinder (31a), A lifter (41) for placing and raising and lowering the nursery box set (10) carried out by the carry-out machine, and a nursery box set excluding at least the lowermost nursery box of the nursery box set transferred to the lifter (41) Retaining mechanism for holding seedlings and seeding box at the bottom (50)
The present invention is characterized in that it is provided with a feeding mechanism for feeding the seedlings to the seeding box (10) one by one and sequentially descending the seedling raising box set (10) downstairs to the seeding device (50).

〔Example〕

The present invention will be described below with reference to the drawings showing its embodiments. FIG. 1 is a layout diagram of a seedling raising facility, FIG. 2 is a partially cutaway plan view thereof, and FIG. 3 is a side view of a portion thereof. This nursery has two floors, and on floor A above it,
A stock conveyor 20 is provided for placing and stocking a large number (about 800) of seedling raising box sets 10 each of which is composed of 20 empty seedling raising boxes 11, 11.

At the end of the stock conveyor 20, the stock conveyor
A delivery conveyor 21 for delivering the seedling raising box set 10 placed on 20 from the stock conveyor 20 one by one is connected in series, and further, at the terminal end of the delivery conveyor 21 in an arc shape.
A corner conveyor 22 that is bent once is continuously provided. At the end of the corner conveyor 22, a descending lift for sequentially descending one set of nursery box sets 10 from the upper floor A to the lower floor B.
Roller conveyor 2 facing the carry-in port 33a of 30 (see FIG. 4)
3 are arranged. On the side opposite to the entrance of the lowering lift 30 of the roller conveyor 23, a carry-in device for transferring one set of nursery box sets 10 on the roller conveyor 23 onto a lift table 32 of the lowering lift 30. A pusher 24 is provided.

The carry-in pusher 24 has the air cylinder 24a arranged such that the rod advancing direction is the descending lift 30 side direction, and the axial direction of each air cylinder 24a is the lateral direction of the air cylinder 24a. Two guide shafts 24b, 24b are arranged so as to be in parallel with the rod end of the air cylinder 24a and an end portion of each guide shaft 24b on the lowering lift 30 side. The bottom of a frame-shaped pushing tool 24c opposed to 33a is attached, and when the rod of the air cylinder 24a advances, the pushing tool 24c moves to the lowering lift 30 side and is placed on the roller conveyor 23. The thus-prepared nursery box set 10 is transferred onto the lift table 32 of the descending lift 30.

FIG. 4 is a vertical cross-sectional view of the lowering lift 30, and FIG. 5 is an enlarged cross-sectional view of the main part thereof. The descending lift 30 connects the upper floor A and the lower floor B, and has a wire mesh 33 on the outer periphery.
It is covered by. And a carry-in port 33a is formed at a position facing the pushing tool 24c on the upper side of the wire net 33,
On the lower side thereof, a carry-out port 33b is formed with the opening direction thereof being different from the carry-in port 33a by 90 degrees. The descending lift 30 has an elevator structure that raises and lowers the wire rope 35 by driving the motor 36 to raise and lower the lift stand 32 attached to the wire rope 35, and the nursery box set 10 is placed on the lift stand 32. Place and transport downstairs. An upper seedling raising box assembly sensor 37 using a photo switch is provided above the descending lift 30 to detect that the seedling raising box assembly 10 is placed on the lift table 32.

An opening 33c is formed in a lower portion of the lowering lift 30 at a position facing the carry-out port 33b, and a carry-out pusher 31 serving as a carry-out machine is disposed so as to face the opening 33c.
The push-out 31 for unloading is a lift for descending when the rod advancing direction.
An air cylinder 31a arranged so as to be on the center side of 30,
Two guide shafts 31 arranged on each side of the air cylinder 31a
b, 31b, a rod-shaped end face of the air cylinder 31a and the leading end face of each guide shaft 31b on the side of the lowering lift 30, and a frame-shaped pushing member 31c whose bottom is attached and erected,
When the rod of the air cylinder 31a advances, the pusher 31c
Advances to the lift table 32 hoisting area of the lowering lift 30.

The lift table 32 has an upper position at the same level as the upper loading pusher 24 of the lowering lift 30, and a lower loading pusher.
It is designed to stop at the lower position at the same level as 31, and at the upper position, the nursery box group is transferred to the lift table 32 by the loading pusher 24, and on the lift table 32 at the lower position. The nursery box set is carried out by the carry-out pusher 31 from the carry-out port 33b.

Below the lowering lift 30, a lower seedling raising box assembly sensor 38 using a photo switch is provided for detecting the presence or absence of the seedling raising box assembly 10 on the lowered lift table 32.

A seedling raising box supply device 40 is disposed on the lower side of the lowering lift 30 so as to face the carry-out port 33b. FIG. 6 is a side view of the nursery box feeding device. In the figure, 41 is a lifter to which the nursery box group 10 on a lift table 32 in a descending lift 30 is transferred, and the lifter 41 is a horizontal lift table 41.
A rod tip of an air cylinder 41a is fixed to the center of the lower surface of the lift table 41c with the rod advancing direction being upward. A guide shaft 4 is provided on each side of the air cylinder 41a.
1b and 41b are mounted so as to be slidable in the vertical direction, and the tips of the guide shafts 41b and 41b are mounted on the lower surface of the lifting platform 41c so that the lifting platform 41c can be raised and lowered while maintaining a horizontal state. I am doing it. Therefore, when the rod of the air cylinder 41a moves upward, the lift base 41c is raised in the horizontal state, and when the rod of the air cylinder 41a retracts downward, the lift base 41c is lifted.
Is lowered horizontally. The lifting platform 41c is set at three positions, that is, the uppermost position where the rod of the air cylinder 41a is most advanced, the position where it is lowered by one nursery box from that position, and the position where the nursery box is dispensed.

A guide member 49 is arranged above the lifter 41 so as to face the carry-out port of the lowering lift 30 and guide the nursery box group 10 on the lift table 32 of the lowering lift 30. This guide member 49
Has a U-shape in a plan view in which the outlet side is opened,
The nursery box set 10 pressed by the push-out pusher 31 is guided so as to be surely transferred onto the lifter 41.

On the other hand, in each side portion of the seedling raising box supply device 40 in the direction orthogonal to the moving direction of the seedling raising box set 10, a second stage raising seedling box is held from the lowermost side of the seedling raising box set 10 when the lifter 41 is raised. A pair of chucking devices 42, 42 as a holding mechanism are arranged. Each chucking device 42 has the same structure,
They are arranged so as to face each other. One chucking device 42 is an air cylinder mounted by a spherical bearing so that the rod advancing direction is toward the center of the lifter 41.
42a and a pair of spherical bearings on both sides of the air cylinder 42a.
Guide shafts 42f, 42f supported by 42d, 42d, respectively, and slidable in the same direction as the rod advance / retreat direction of the air cylinder 42a.
And the rod tip of the air cylinder 42a and both guide shafts 42f, 4
It is detachably attached with a bolt to the tip of the lifter 41 side of 2f, and the lower part consists of a side surface L-shaped clamp portion 42c protruding toward the lifter 41 side, and a concave portion 42e is formed at the center of the tip end surface of the clamp portion 42c. Is formed so as to engage with the reinforcing rib formed on the side surface of the nursery box. Since the air cylinder 42a and the guide shafts 42f are mounted by spherical bearings, the clamp portion 42c reliably engages with the nursery box even when the nursery box set is not in a predetermined posture.

A delivery pusher 43 as a delivery mechanism is attached below the air cylinder 42a of the chucking device 42 arranged on the delivery direction side of the nursery box. The push-out pusher 43 has a pressing member 43c attached to the tip of an air cylinder 43a with the rod 43b advancing direction toward the seeding device 50 side, and is placed on the upper surface of the lifter 41 when the lifter 41 descends.
One nursery box 11 is moved to the side of the seeding device 50.

On the side facing the payout pusher 43, the roller conveyor
44 is disposed so that the axial center of the payout pusher 43 and the axial center of the starting end portion thereof coincide with each other, and the end portion of the roller conveyor 44 faces the starting end portion of the seeding table 51 of the seeding device 50.

The raising box 41c of the lifter 41 is provided on the nursery box feeding device 40.
To detect that the nursery box set 10 has been transferred from above the lift table 32, an opposed photo switch is installed along the diagonal line of the lift table 41c so that the light goes straight with a slight inclination in the vertical direction. The seedling raising box assembly sensor 81 attached to the lower part of the guide member 49 is provided, and below each seedling raising box assembly sensor 81 when the elevator 41c is at the same level as the roller conveyor 44 upper surface, In order to detect that one seedling raising box is placed on the upper surface, a seedling raising box sensor 82 using an opposed photo switch is provided.

Further, the lifting table 41c is lifted by an air cylinder 41a for lifting.
When the c reaches a predetermined upper position and the piston rod has advanced to a predetermined length, a lift table upper position sensor 83 using a reed switch, and the lift table 41c are at the same height position as the upper surface of the roller conveyor 44. Then, the lift table lower position sensors 84 using reed switches for detecting that the piston rod has retracted for a predetermined length are respectively attached.

A chucking sensor 85 using a reed switch that detects that the rod has advanced to one air cylinder 42a of the chucking device 42 by a length required to hold the nursery box, and the rod holds the nursery box. A chuck release sensor 86 using a reed switch for detecting that the retreat has moved in by a length necessary to release the lock is provided.

Further, it is confirmed that the rod has advanced to the air cylinder 43a of the payout pusher 43 by a length necessary for pressing one seedling raising box placed on the elevating table 41c to transfer it onto the roller conveyor 44. A payout sensor 87 using a reed switch for detecting and a payout preparation sensor 88 using a reed switch for detecting that the rod has retracted to a predetermined position are provided.

In the roller conveyor 44, in order to detect that the number of seedling raising boxes transferred onto the roller conveyor 44 and placed on the roller conveyor 44 is a predetermined number or more, and has stopped moving, A seedling-growing-box full sensor 89 composed of opposed photoswitches arranged on both sides is provided.

On the floor B below, a seeding device 50 is arranged in series with the seedling raising box feeding device 40. Each seedling raising box sequentially fed from the seedling raising box feeding device 40 is on the seeding table 51 of the seeding device 50. While being moved on the sowing table 51, the soil is charged therein by the earthing machine 52, watered by the irrigation machine 53, seeded by the sowing machine 54, and further covered by the soil cover machine 55. Is covered with soil.

A shelving device 60 is connected to the seeding device 50, and the seedling-growing boxes that have been seeded are sequentially stored in the shelving positions of the storage carts 70 located on the sides of the shelving device 60.

A large number of pits 93, 93 ... Are formed on the side of the shelving unit 60, and each pit 93 is provided with a lattice lid 91 such as a grinder, and is stored on each lattice lid 91. A dolly 70 is located. The hot water heated by the boiler 92 is fed to each pit 93, and the atmosphere in the storage cart 70 such as temperature and humidity is adjusted to germinate the seeds in the seedling raising box stored at each shelf position.

FIG. 7 is a block diagram of a control system of the nursery box transporting device according to the present invention. In the figure, 90 is a sequencer, based on the output signals of the sensors 37, 38, 81 to 89 described above, based on the output signals of the lift base 32, the motor 36 for lifting and lowering, the air cylinders 41a, 42a, 43a, and the roller conveyor drive. The motor 44e is sequentially controlled.

Next, the operation of the sequencer 90 will be described. The seedling raising box sets 10 stocked on the stock conveyor 20 provided on the upper floor A are conveyed one by one to the corner conveyor 22 by the delivery conveyor 21 and the descending lift 30 by the corner conveyor 22. Roller conveyor 2 facing the upper entrance 33a
Positioned on top of 3. In such a state, the air cylinder 24a of the carry-in pusher 24 operates so that the rod advances, and the nursery box set 10 on the roller conveyor 23 is moved onto the lift table 32 of the lowering lift 30 by the pushing tool 24c. List. When the seedling raising box set 10 is transferred onto the lift table 32, the upper seedling raising box set sensor 37 detects such a state, and the lift stand 32 lifting / lowering motor 36 is operated to lower the lift stand 32. When the lift table 32 descends and comes to a position facing the carry-out port 33b, the lower-side seedling box assembly sensor 38 causes the seedling box assembly on the lift table 32.
When it is detected that the lift table 32 is lowered with the 10 mounted, the air cylinder 31a of the unloading pusher 31 is operated to advance the rod, and the pushing tool 31c is moved to the lift table 3c.
2 Raise the nursery box set 10 to the lifter 4 in the nursery box feeder 40
It is transferred onto the lift table 41c of 1.

In such a state, the nursery box assembly sensor 81 detects that the nursery box assembly 10 has been transferred to the elevator 41c, and the sequencer 90
Moves the rods of the air cylinders 42a of the chucking device 42 forward, and clamps 43c, 43c at the tips of both rods.
Holds the second raising box 11 from the lowermost side in the raising box set 10. When both the clamp portions 43c, 43c are in a state of holding the seedling raising box 11, the chucking sensor 85 detects this state, the air cylinder 41a in the lifter 41 is retracted, and the lift table 41c is lowered. In this case, nursery box set 1
The second seedling raising box 11 from the bottom of 0 is the chucking device 42.
Since the nursery box and the nursery box stacked on the upper side of the nursery box are not lowered, only the one nursery box 11 located at the lowermost side in the nursery box group 10 is placed on the lifting platform 41c. Is placed, and the elevating table 41c descends in such a state. When the elevator 41c is lowered to the same height as the upper surface of the roller conveyor 44, the elevator lower position sensor 84 detects this state, and the operation of the air cylinder 41a is stopped. Next, the air cylinder 43a of the payout pusher 43 is operated to advance the rod 43b, and the pressing member 43c at the tip of the rod 43b presses the seedling raising box 11 toward the roller conveyor 44 and transfers it onto the roller conveyor 44. In such a state, the payout sensor 87 detects this state, and the rod 43b of the air cylinder 43a of the payout pusher 43 is retracted. When the rod of the air cylinder 43a is in the retracted state, the payout preparation sensor 88 detects this state, the air cylinder 41a in the lifter 41 is operated to advance the rod, and the lift 41c is raised. When the rod of the air cylinder 41a is most advanced and the lifting platform 41c is at the uppermost position, the operation of the air cylinder 41a is stopped, and
Each air cylinder 42a of the chucking device 42 is operated to retract the rod, and the clamp portion 43c at the tip of the rod,
43c releases the holding of the nursery box, and the whole nursery box is placed on the lift table 41c of the lifter 41. The rod of the air cylinder 41a is retracted by one nursery box, and when the lifting platform 41c reaches a predetermined upper position, the lifting platform upper position sensor 83 detects this state, and the operation of the air cylinder 41a is stopped, and The air cylinder 42a of the king device 42 is operated to advance the rod, and again holds the second-stage seedling raising box from the bottom. In such a state, the chucking sensor 85 detects this state, and the same operation as described above is repeated. Therefore, the seedling raising boxes 11 are sequentially fed to the roller conveyor 44 one by one, and the roller conveyor 44 sequentially conveys the seedling raising boxes to the seeding table 51 of the seeding device 50.

At this time, when the seedling raising box transferred on the roller conveyor 44 becomes full, the seedling raising box full sensor 89 is turned on and the operation of the seedling raising box supply device 40 is stopped.

The seedling raising box transported to the seeding device 50 is subjected to a series of seeding work while moving to the seeding table 51 of the seeding device 50, and moved to a predetermined shelf position in the storage cart 70 by the shelving machine 60. Listed. Each storage trolley 70 is located above the pit 93, where the temperature and humidity are controlled to promote germination.

〔effect〕

According to the present invention, since a large number of nursery boxes are stored on the upper floor and sown in the nursery boxes downstairs, the nursery facility may have a small space, and the nursery boxes can be transferred from the upper floor to the lower floor. Since it can be automatically performed by the sequencer, labor can be saved, and seeding can be efficiently performed in the nursery box. Further, by raising the seedling raising box set carried out from the lift table of the descending lift to the seeding device by the lifter and the holding mechanism, the seedling raising boxes can be sent one by one, so that the seeding work can be performed smoothly and continuously. The present invention has excellent effects.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a layout diagram of a seedling raising facility, Fig. 2 is a partially cutaway plan view thereof, Fig. 3 is a side view of an essential part thereof, and Fig. 4 is a descending lift. Longitudinal section, fifth
The figure is a cross-sectional view of the descending lift and the seedling raising box feeding device,
FIG. 6 is a side view of the seedling raising box supply device, and FIG. 7 is a block diagram of a control system of the device of the present invention. 10 …… Nursery box set, 11 …… Nursery box, 24 …… Pusher for loading, 24a …… Air cylinder, 30 …… Lift for lift, 31…
… Pusher for unloading, 31a …… Air cylinder, 32 …… Lift platform, 33 …… Wire mesh, 40 …… Sprouting box feeding device, 50 …… Seeding device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B65G 59/06 103

Claims (1)

[Claims] 1. A seedling raising box in a seedling raising facility in which a set of seedling raising boxes (10) formed by stacking a plurality of empty seedling raising boxes are stocked upstairs and seeded in each seedling raising box by a seeding device (50) downstairs. In the group transfer device, the carry-in entrance (33a) is on the upper floor and the carry-out exit (33a) is on the lower floor.
b) and a lowering lift (30) for placing the nursery box group (10) on the floor on a lift stand (32) capable of moving up and down and lowering it to the carry-in port (33a). A carry-in machine, which is arranged facing each other and transfers the seedling raising box set (10) stocked on the floor onto the lift table (32) by the operation of the cylinder (24a),
It is placed opposite to the carry-out port (33b) across the lifting area of the lift table (32), and carries out the nursery box set on the lift table (32) from the carry-out port (33b) by the operation of the cylinder (31a). Carry-out machine and nursery box set (10) carried out by the carry-out machine
A lifter (41) for placing and raising and lowering, a holding mechanism for holding a nursery box set excluding at least the lowest nursery box of the nursery box set transferred to the lifter (41), and a lowermost nursery box It is equipped with a feeding mechanism for feeding the seedlings to the seeding device (50), and the upper-layer seedling raising box set (10) is successively lowered to send the seedling raising boxes one by one to the seeding device (50). A nursery box assembly carrier at a nursery facility.