JPH0647401B2 - Nursery box multi-stage loading device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a nursery box multi-stage loading device.

“Conventional technology” Normally, mat-like seedlings used for planting work with rice transplanters are grown in seedling raising facilities. To grow mat-like seedlings in a seedling raising facility, stack empty seedling raising boxes, supply the seedling raising boxes to the seeding conveyor line one by one, fill the soil with soil, and irrigate.
Sowing, covering with soil, stacking the seedling boxes, putting in a germination room, heating and humidifying with steam in the germination room for 2 to 3 days for germination,
Workers plant the seedling raising boxes that house the stacked and germinated seedlings one by one in greening shelves.

"Problems to be solved by the invention" Most of the work at the seedling raising facility is automated,
It takes a lot of time and labor for the operator to put the seedling raising boxes for storing the stacked and germinated seedlings into the greening shelves one by one, which reduces the work efficiency in the seedling raising facility.

“Means to be Solved by the Invention” In view of the above circumstances, in order to improve work efficiency in a seedling raising facility, a greening trolley having multiple shelves is automatically loaded with seedling raising boxes for accommodating stacked and germinated seedlings. A multi-stage loading device for seedling raising boxes is installed.

The present invention is an operation stroke control device for a pusher in a nursery box multi-stage loading device configured to transfer a nursery box stacked on a shelf conveyor to a greening cart by a pusher.

The seedlings in the nursery boxes that have been transferred to the greening cart are heated and grown in the shelf nursery room. In order to evenly grow the seedlings in the nursery box in the shelf greening room, it is necessary to provide a gap between the nursery boxes and to raise the air in the shelf greening room by convection to uniformly heat the seedlings.

Therefore, the operation stroke control device of the pusher, in order to provide a gap between the nursery box and the nursery box, according to the detection result of the sensor that detects the presence or absence of the nursery box on the far side of the greening cart,
It is configured to change the working stroke of the pusher.

"Action" The pusher operating stroke is changed according to the detection result of the sensor that detects the presence or absence of the nursery box on the far side of the green truck.

[Example] First, an outline of a seedling raising facility will be described with reference to FIG.

Stacked empty nursery boxes 1 and seeding conveyor line 2
The seedling raising boxes 1 are supplied to the upstream side of the seedlings one by one, the soil is put into the seedling raising box 1 from the hopper 3, water is sprinkled from the sprinkler 4, seeded from the hopper 5, covered with soil from the hopper 6, and the seedling raising box 1 is Are stacked in a stacking chamber 7 and placed on a carrier 8 and put in a germination chamber 9 where they are heated and humidified with steam for 2 to 3 days for germination. Seedling box 1 for storing seedlings that have been stacked and sprouted
... are put into the greening cart 12 at predetermined intervals by the multi-stage loading box 11 for growing seedlings and the seedlings are greened in the shelf nursery room 13.

Next, the outline of the nursery box multi-stage loading apparatus 11 will be described with reference to FIG.

The nursery box multi-stage loading device 11 includes a nursery box 1 of a carrier vehicle 8 on which a nursery box 1 for accommodating stacked germinated seedlings 1 ..., a separating section A of the carrier vehicle 8 and a stacked nursery box 1 ... A sending section B for sending out, a shelf conveyor 14 that receives the seedling raising boxes 1 transferred one by one, and rises by one step, and a shelf conveyor
A green truck 12 for receiving the nursery box 1 from 14; a pusher 15 for pushing out the nursery box 1 from the shelf conveyor 14; and a carrier truck 8 for separating the nursery box 1 ...
And a carrier cart collecting device C for collecting

Small rectangular frame 21 with stacked nursery boxes 1 ...
The carrier 8 provided with wheels 22 on the conveyor moves on the supply conveyor 23 to reach the separating section A of the nursery box 1. Then, inside the frame 21 of the carrier vehicle 8, the chain conveyor 24 is lifted by the cylinder to lift the stacked seedling raising boxes 1 ... And stop when they are flush with the feeding section B, and the chain conveyor 24 is driven to drive the seedling raising boxes 1.
Is moved to the sending section B. Next, the stacked nursery box 1
.. is slightly raised by the conveyor and the locking claws are operated to lock the second seedling raising box 1 ... from the bottom and hold the second seedling raising box 1 ... from the bottom. After that, the conveyor descends with only one of the seedling raising boxes 1 at the bottom end. The separated seedling raising box 1 at the lowermost end is transferred by a transfer conveyor and received by a shelf conveyor 14 equipped with a lifter. Shelf conveyor 14 is seedling box 1
When 1 box comes, it goes up by 1 step, and when it comes 1 box, it goes up by 1 step again and stacks 15 raising seedling boxes 1 at a predetermined interval. When 15 box nursery boxes 1 are piled up, all 15 boxes are pushed out by the pusher 15 and handed over to the greening cart 12 having waiting shelves at predetermined intervals. A total of 60 boxes of 4 rows of 15 boxes of nursery boxes 1 in one row are stacked on the greening cart 12. To do this, lift the green truck 12 with a lifter to the same height as the work conveyor, and lift the green truck 12
Moves to the vicinity of the shelf conveyor 14 and stops. Green truck
The sensor detects whether or not there is a nursery box 1 in front of 12, and when it is not, pushes the nursery box 1 to the far side inside the green truck 12 and operates the pusher 15 with a long stroke. Then, push the nursery box 1 ..., and when the sensor detects that the nursery box 1 ... is on the far side of the greening cart 12, the pusher 15 makes a short stroke to move the nursery box 1 ... to the front side of the greening cart 12. Nursery box 1 pushed to the far side ...
And push it in at a specified interval. When there are two rows of nursery boxes 1 in front of the vegetation truck 12 on the far side and the front side, the sensor detects it and advances the vegetation truck 12 by one pitch to stop, and in the same way to the rear as before. 2 on the far side and the front side
Accommodates row nursery boxes 1 ... The greening cart 12 containing the four rows of seedling raising boxes 1 ... Moves and lowers the greening cart 12.

Next, the working stroke control device of the pusher of the present invention will be described in detail.

As shown in FIGS. 1 and 2, the seedling raising box 1 separated from the delivery section B at the lowermost end is transferred by a transfer conveyor and received by a shelf conveyor 14 equipped with a lifter. The shelf conveyor 14 has one nursery box 1
If one box comes up, it goes up one step, and if one box comes next, it goes up one step again and stack 15 seedling raising boxes 1 at a predetermined interval. 15
When the box nursery boxes 1 are piled up, all 15 boxes are pushed out by the pusher 15 by the push-out member 31, and are handed over to the greening cart 12 having waiting shelves 32 at predetermined intervals. Green truck 12
A total of 60 boxes of 15 boxes for 1 row of seedlings ...

To do so, as shown in FIGS. 3, 4, and 5, the greening carriage 12 is lifted to the same height as the work conveyor 33, and the greening carriage 12 is moved to a position near the shelf conveyor 14 on the work conveyor 33. As shown in FIG. 7, the seedling raising boxes 1 ... The proximity sensor 34 provided on the work conveyor 33 detects whether or not the nursery box 1 is in front of the greening cart 12, and when the nursery box 1 is not in the greening cart 12, Push the pusher 15 with a long stroke to push it to the far side, and raise the seedling box 1
Push in. When the proximity sensor 34 detects that the nursery box 1 ... is on the far side of the greening cart 12, the pusher 15
Is a short distance between the nursery box 1 and the nursery box 1 that has been pushed farther in front of the greening cart 12 in a short stroke.
Push out (see Fig. 7). When the two rows of nursery boxes 1 in front of the vegetation truck 12 are located on the far side and the front side, the sensor detects it and advances the vegetation truck 12 by one pitch to stop. Two rows of nursery boxes 1 are housed on the far side and the front side. Instead of the proximity sensor 34, sensors 35 and 36 including a light emitter and a light receiver may be arranged above and below the work conveyor 33 to detect the presence or absence of the seedling raising box 1. Proximity sensor for even greater safety
It is also possible to use the 34 and the sensors 35 and 36 together. The green truck 12 containing the four-row nursery boxes 1 ...
To lower.

"Effects of the Invention" As described above, the present invention stacks seedling raising boxes transferred by a conveyor at a predetermined number of steps on a shelf conveyor that increases by one step each time one box is sent, and this stacking is performed. All the nursery boxes are pushed out with a pusher at the same time, and they have shelves at predetermined intervals, and are configured to be transferred to a greening cart that stands by in front of the shelf conveyor. Provided with a sensor for detecting the presence or absence, and changing the operation stroke of the pusher according to the detection result of this sensor, it is a multi-stage seedling raising device configured to transfer with a gap between the two extruded seedling raising boxes. Since the nursery box is placed with a gap between it and the nursery box, the heated air in the shelf gardening room can be sufficiently convected and the seedlings in the shelf gardening room are evenly grown. it can. The present invention can be carried out efficiently and surely as compared with the case of manually loading the seedling raising boxes, which are sequentially stacked on the shelf conveyor and transferred to the greening cart by the pusher.

Further, the present invention, when loading into the greening trolley, by setting the stroke of the pusher to provide a gap between the seedling raising boxes to be loaded, since it is arranged with a gap between the seedling raising box and the seedling raising box, the shelf greening room The heated air can be sufficiently convected, and the seedlings in the nursery box can be evenly grown in the shelf greening room.

Furthermore, the present invention, the pusher push to the greening trolley, the steps of raising and lowering to the greening trolley are performed at the same time, so the positions of the nursery boxes in each stage are aligned, and the watering to each nursery box is the same condition, so that more seedlings Can be grown evenly.

Furthermore, the present invention performs the transfer work of the nursery box to the greening trolley at the same time in upper and lower stages, and the transfer work can be performed efficiently even if the pushing stroke by the pusher is slowed down. It is possible to reduce the unevenness of the soil inside the soil, and to improve the growth of seedlings thereafter.

[Brief description of drawings]

Fig. 1 is a side view showing a state in which stacked seedling raising boxes are stacked one by one on a feeding shelf conveyor and transferred to a greening dolly by a pusher, Fig. 2 is a front view of Fig. 1, and Fig. 3 is a work conveyor. Front view, FIG. 4 is a plan view of FIG. 3, and FIG.
Fig. 6 is a side view, Fig. 6 is a schematic vertical sectional front view of a seedling raising facility, Fig. 7
The figure is a schematic plan view of a nursery box multi-stage loading device. 14 ... Shelf conveyor 1 ... Nursery box 15 ... Pusher 12 ... Greening cart 11 ... Multi-stage loading device for nursery box 34, 35, 36 ... Sensor

Continuation of the front page (56) Reference JP 61-94906 (JP, A) JP 55-165804 (JP, A) JP 56-48309 (JP, A) JP 60-87106 (JP , A) JP 60-167805 (JP, A) Jikho 55-5525 (JP, Y2) Jiko 5-8826 (JP, Y2)

Claims (1)

[Claims] 1. A seedling raising box transferred by a conveyer conveyor is piled up at a predetermined number of steps on a shelf conveyer which is raised by one step every time one box is sent, and all the raised seedling raising boxes are pushed simultaneously. It has a shelf at a predetermined interval and is configured to be transferred to a greening cart that stands by in front of the shelf conveyor, and is equipped with a sensor that detects the presence or absence of a nursery box on the far side from the push of the greening cart. A multi-stage nursery box loading device configured to change the operation stroke of the pusher according to the detection result of the sensor, and to transfer the pushed two nursery boxes with a gap between them.