JPS63262335A - Operation stroke controller for pusher - Google Patents

Abstract

PURPOSE:To make heated air in a shelf greening chamber fully convectional by changing the operation stroke of a pusher according to the detection result of a sensor which detects a seedling breeding box being present or not. CONSTITUTION:An approach sensor 34 provided at a work conveyer 33 senses whether a seedling breeding box 1 is placed in front of a greening truck 12 or not, and in case of the seedling breeding box 1 being not placed, a pusher 15 is made to operate with a long stroke which pushes a seedling breeding box 1 to the distant side within the greening truck 12 and pushes the seedling breeding box 1 in. When the approach sensor 34 senses that the seedling breeding box 1 is placed on the distant side of the greening truck 12, the pusher 15 pushes with a short stroke a seedling breeding box 1 in on this side of the greening truck 12 with a predetermined space kept apart from the seedling breeding box 1 previously pushed in on the distant side. When two rows of seedling breeding boxes 1 are placed on the distant side and this side of the front of the greening truck 12, the sensor senses each of them and the greening truck 12 is made to advance one pitch and is stopped, and in the rear, as in the front, two rows of seedling breeding boxes 1 are received on the other side and on this side.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an operating stroke control device for a pusher.

"Conventional Technology" Usually, mat-shaped seedlings used for seedling planting with a rice transplanter are grown in a seedling nursery facility. To grow matted seedlings in a seedling facility, empty seedling boxes are stacked, one box at a time is fed to the seeding conveyor line, the beds are filled, watered, and the other is done.
Sow seeds, cover with soil, stack the seedling boxes, put them in a germination chamber, heat and humidify them with steam for 2 to 3 days in the germination chamber, and germinate.
A worker places the seedling boxes containing the stacked and germinated seedlings one by one into a greening shelf and greens the seedlings.

``Problems that the invention seeks to solve'' Most of the work in seedling facilities is automated, but
The work of placing seedling boxes containing stacked and germinated seedlings into greening shelves one by one by a worker is time-consuming and reduces work efficiency in a seedling-raising facility.

``Means to be solved by the invention'' In view of the above circumstances, in order to improve work efficiency in seedling-raising facilities, seedling-raising boxes containing stacked and germinated seedlings are automatically loaded onto a greening cart with multi-tiered shelves. A multi-stage loading device for seedling boxes will be installed.

The present invention is an operating stroke control device for a pusher in a multi-stage seedling box loading device configured to transfer seedling boxes stacked on a shelf conveyor to a greening cart using a pusher.

The seedlings in the nursery boxes are transferred to the greening trolley and are grown in a shelf nursery room under heating. In order to uniformly grow the seedlings in the seedling boxes in the shelf greening room, it is necessary to provide a gap between the seedling boxes to allow the heated air in the shelf greening room to circulate and heat evenly.

Therefore, in order to create a gap between the seedling growing boxes, the pusher operation stroke control device uses the detection result of the sensor that detects the presence or absence of the seedling growing box on the far side of the greening cart to create a gap between the seedling growing boxes.
The pusher is configured to change the operating stroke of the pusher.

``Function'' The operating stroke of the pusher is changed based on the detection result of a sensor that detects the presence or absence of a seedling box on the far side of the greening cart.

"Example" First, an outline of the seedling raising facility will be described from Figure 6.

Stack the empty seedling boxes 1 and move them to the seeding conveyor line 2.
The seedling raising boxes 1 are supplied one by one to the upstream side of the seedling raising box 1, the bed is placed in the seedling raising box 1 from the hopper 3, water is applied from the sprinkler 4, seeds are sown from the hopper 5, soil is covered from the hopper 6, and the seedling raising box 1 is The seeds are stacked in a stacking room 7, placed on a carrier 8, placed in a germination room 9, and heated and humidified with steam for 2 to 3 days in the germination room 9 to germinate. Seedling raising box 1 that accommodates stacked and germinated seedlings
. . . is loaded onto the greening cart 12 by the multi-stage loading device 11 for seedling boxes.
The seedlings are placed at predetermined intervals and greened in the shelf seedling room 13.

Next, the outline of the multistage seedling box loading device 11 will be described with reference to FIG.

A multi-stage seedling box loading device 11 loads seedling boxes 1 and 1 on a transport vehicle 8 carrying seedling boxes 1 that accommodate stacked and germinated seedlings.
..., the separation section A of the transport vehicle 8, and the stacked seedling growing boxes 1.
... is sent out box by box, a shelf conveyor 14 receives the seedling growing boxes L... transferred box by box and rises one step at a time, and a shelf conveyor 14 receives the seedling growing boxes 1... from the shelf conveyor 14. A greening cart 12 to be loaded, and a seedling box 1 from a shelf conveyor 14...
It consists of a pusher 15 that pushes out the seedlings, and a carrier recovery device C that recovers the carrier 8 from which the seedling raising boxes 1 containing the stacked and germinated seedlings have been separated.

A transport vehicle 8, which is equipped with wheels 22 on a small rectangular frame 21 on which the stacked seedling growing boxes l... are placed, moves on a supply conveyor 23 and reaches the separating section A of the seedling growing boxes l. Then, the chain conveyor 24 is raised by a cylinder inside the frame 21 of the transport vehicle 8, and the stacked seedling growing boxes 1 are lifted up and stopped flush with the delivery section B, and the chain conveyor 24 is moved up.
0 to move the seedling raising box l... to the sending section B by driving 4.
Next, raise the conveyor slightly to lift the stacked seedling growing boxes l..., activate the locking claws to lock the second seedling growing box 1 from the bottom, and then lift the stacked seedling growing boxes l... ...Keep the above. Thereafter, the conveyor descends with only one seedling growing box l at the bottom. Seedling nursery box 1 at the bottom
Shelving conveyor 1 equipped with a sealing lid
Uke is included in 4th. The shelf conveyor 14 moves up one stage when there is one seedling box l, and then goes up one stage again when there is one seedling box l, and stacks 15 seedling boxes l at predetermined intervals in order.
When the boxes 1 for growing seedlings are stacked, all 15 boxes are pushed out by a pusher 15 and delivered to a waiting greening cart 12 having shelves set out at predetermined intervals. The greening cart 12 is loaded with 4 rows of 15 seedling boxes 1 for a total of 60 boxes.

To do this, the greening cart 12 is lifted to the same height as the work conveyor by a lifter, and the greening cart 12 is moved to the vicinity of the shelf conveyor 14 and stopped. Seedling box l in front of the greening cart 12
A sensor detects whether or not there is a seedling box 1 inside, and if there is no seedling box 1 inside, the pusher 1 pushes the seedling box 1 to the far side of the greening cart 12 with a long stroke.
5 and push in the seedling box 1.
When the sensor detects that ... has entered the far side of the greening trolley 12, the pusher 15 uses a short stroke to push the seedling raising box l... to the front side of the greening trolley 12 first to the far side. When two rows of seedling boxes L... are inserted into the far side and the front side of the front of the greening cart 12 with a predetermined gap between them, the sensor detects this and pushes the greening cart 12. 12 is advanced by one pitch and then stopped, and two rows of seedling growing boxes 1 are housed in the rear side, one on the far side and one on the front side, in the same way as in the front. Greening cart 12 containing 4 rows of seedling boxes l...
moves and lowers the greening cart 12.

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

As shown in FIGS. 1 and 2, the separated seedling growing box l at the lowermost end is transferred from the sending section B by a transport conveyor and is received on a shelf conveyor 14 equipped with a bottom lid. Shelf conveyor 14 is seedling box 1
If there are 1 United States, the seedling box 1 will go up one step, and then if there are 1 United States, it will go up one step again, stacking 15 seedling raising boxes 1 at predetermined intervals. When 15 boxes of seedling growing boxes 1 are stacked and lifted up, all 15 boxes are pushed out by a pushing member 31 by a pusher 15, and the containers are delivered to a waiting greening cart 12 having shelves 32 set out at predetermined intervals. Greening cart 12 has 1 row of 15 seedling boxes 1...
Stacked in 4 rows for a total of 60 boxes.

For this purpose, as shown in Figures 3, 4, and 5, a greening trolley 12
is lifted to the same height as the working conveyor 33 by a lifter, and the greening cart 12 is moved to the vicinity of the shelf conveyor 14 above the working conveyor 33, and as shown in FIG. Stop at the forward position. A proximity sensor 34 provided on the work conveyor 33 detects whether or not there is a seedling box 1 in front of the greening cart 12, and if there is no seedling box 1... The pusher 15 is operated with a long stroke to push the seedling box 1 to the far side of the greening cart 12, and the seedling raising box 1 is pushed in. When the proximity sensor 34 detects that the seedling box 1 is placed on the far side of the greening cart 12, the pusher 15 moves the seedling box l... into the greening cart 1 with a short stroke.
Push the seedling raising box l (see Figure 7) between the front side of 2 and the seedling raising box l that was pushed first towards the far side.
There are two rows of seedling boxes 1 on the far side and the front side in front of the greening cart 12.
When ... enters, the sensor detects it and greening cart 1
2 is advanced one pinch and then stopped, and two rows of seedling growing boxes 1 are housed at the rear, one on the far side and one on the near side, in the same way as the front. Incidentally, instead of the proximity sensor 34, sensors 35 and 36 consisting of a light emitting body and a light receiving body can be arranged above and below the work conveyor 33 to detect the presence or absence of the seedling box 1. For further safety, the proximity sensor 34 and sensors 35 and 36 can also be used together. 4-row seedling box 1
The greening trolley 12 that accommodated ... moves, and the greening trolley 12
lower.

"Effects of the Invention" As described above, the present invention provides a multi-stage seedling box loading device configured to transfer seedling boxes stacked on a shelf conveyor to a greening cart using a pusher, in which the presence or absence of seedling growing boxes on the far side of the greening cart is determined. This is a pusher operation stroke control device configured to change the operation stroke of the pusher according to the detection result of the sensor.Since the seedling raising boxes are arranged with a gap between them, it is possible to reduce the pressure in the shelf greening room. This allows sufficient convection of the heated air, allowing the seedlings in the seedling boxes in the shelf greening room to grow evenly.

[Brief explanation of drawings]

Figure 1 is a side view showing how stacked seedling boxes are stacked one by one on a feeding rack conveyor and transferred to a greening cart using a pusher, Figure 2 is a front view of Figure 1, and Figure 3 is a view of the work conveyor. Front view, Figure 4 is a plan view of Figure 3, Figure 5 is a view of Figure 3.
Figure 6 is a schematic longitudinal front view of the seedling nursery facility, Figure 7 is a side view of the
The figure is a schematic plan view of a multi-stage loading device for seedling boxes. 14... Shelf conveyor... Seedling box 15... Puffer 12... Greening trolley

Claims (1)

[Claims] (1) In a multi-stage seedling box loading device configured to transfer seedling boxes stacked on a shelf conveyor to a greening cart using a pusher, the pusher is activated based on the detection result of a sensor that detects the presence or absence of a seedling box on the far side of the greening cart. Pusher operating stroke control device, characterized in that it is configured to change the stroke.