JPH03186521A - Seed planting processing mechanism - Google Patents

Abstract

PURPOSE:To improve the operation efficiency by installing the second transport device having the larger speed than the feeding-out speed in a seed planting processing part, double superposing device for seedling nursing boxes, and the third transport device which has the speed which is lower than the speed of the second transport device and over the half of the speed supplied from the seed has the speed over the half of the speed supplied from the seed planting processing part. CONSTITUTION:Before a seedling nursing box 1 reaches a lifting-up position by the use of a double superposing device B, the first air cylinder 21 is extended, and the second air cylinders 24 and 24 are contracted. When the seedling nursing box 1 is detected by the first sensor, the first air cylinder 21 contracts to lift up the seedling nursing box 1. When the second sensor detects that the next seedling nursing box 1 reaches a near lower position, the second air cylinders 24 and 24 are extended to drop the seedling nursing box 1 in held state. The third sensor is installed on the second transport device 4 and judges the end of the seedling nursing boxes. The speed V1 of the transport device in a seed planting processing part, speed V2 of the second transport device 4, and the speed V3 of the third transport device 5 are set in the following relation: V2>V1 and V2>V3>0.5V1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a seeding treatment device, and more specifically, a technology for improving the efficiency of stacking seedling boxes after seeding treatment when performing stacking seedling raising. It is related to.

[Conventional technology]

Conventionally, there is a device for stacking seedling boxes after sowing in order to perform stacking and raising seedlings. The seedling boxes are held in a shelf-like position and lifted up, and when the seedling boxes reach a predetermined level by being lifted in this manner, they are sent laterally in a horizontal position and stacked continuously at a predetermined position.

[Problem to be solved by the invention]

Furthermore, when carrying out stacked seedling raising, the seedling growing boxes after sowing may be stacked manually without using the device of the above-mentioned reference.

However, when stacking seedling boxes by hand, the work requires picking up the seedling boxes sent out from the sowing line via a conveyor or the like one by one and placing them successively on a trolley, etc. Workers must move their bodies frequently, making the work cumbersome.

In addition, when carrying out stacked seedling raising, the number of stacked seedling boxes placed on a trolley or the like is about 30.

Furthermore, when stacking seedling boxes using the device cited in the above reference, since this device has a structure that lifts the seedling boxes in a horizontal position like a shelf, the feeding of the seedling boxes fed into the device must be stopped. It will then be lifted up.

This means that after a seedling box is sent in, it is impossible to send in the next seedling box until this box is lifted, and this device has a structure that makes it difficult to perform high-speed stacking. ing.

Incidentally, if the seedling box is fed into this device at high speed in order to increase the throughput, when the feed is stopped, the soil in the bed of the seedling box will be uneven, resulting in seedlings that are unsuitable for planting. becomes.

Therefore, by interposing a device for stacking the seedling raising boxes after sowing treatment into two layers (upper and lower) in the transport system to which the seedling raising boxes after sowing treatment are sent, when using the device of the above reference, it is possible to raise seedlings in a two-tiered state. It may be possible to increase the processing capacity by sending in boxes, or if the work is to be done manually, by doubling the number of seedling boxes that the worker can handle, but for example, if this two-tiered device is transported Lift the seedling box to a predetermined position and lower it onto the top of the next seedling box to be sent to this predetermined position, or lower the transported seedling box to a predetermined position and place the next seedling on the top of this seedling box. When configuring the box to be stacked in two stages by overlapping the boxes, the following disadvantages may occur.

In other words, this two-tier stacking device performs two-tier stacking by lifting or lowering the seedling box in a direction perpendicular to the transport direction of the seedling box, so for example, when transporting the seedling box, If the shape of each seedling box is in contact with the transport direction, when the boxes are lifted or lowered, the boxes may come into contact with each other, disturbing the transporting posture of the boxes and causing the seedlings to grow It is also possible to apply a shock to the box and cause the soil to become uneven.

The purpose of the present invention is to rationally configure a mechanism that can suppress disturbances in the conveying posture and unevenness of the bed soil caused by contact between seedling boxes when performing two-tier stacking operations as described above. At the point.

[Means to solve the problem]

The first aspect of the present invention is characterized by a seeding processing unit that continuously sends out seedling raising boxes that have been supplied with bed soil, sowing seeds, and covered with soil by a first conveying device;
a second conveying device that feeds at a higher speed than the feeding speed of the conveying device;
The second invention is characterized in that it is equipped with a two-tier stacking device that stacks the seedling boxes sent by the second transport device in upper and lower layers. A seedling processing section that continuously sends out seedling raising boxes by a first conveying device;
a second conveying device that feeds at a higher speed than the feeding speed of the conveying device;
It is equipped with a two-tier stacking device that stacks the seedling-growing boxes sent by the second transport device into two layers, upper and lower, and a third transport device that sends the two-tiered seedling-growing boxes sent out from the two-tier stacking device. The feed rate of the third conveyor is set to a value lower than the feed rate of the second conveyor and greater than half the feed rate of the first conveyor. is as follows.

[Function] When the characteristics of the first and second inventions are configured as shown in FIG. Since the speed is increased at the same time as the seedlings are delivered to the device (4), a gap is formed between each seedling growing box (1), and the two-stage stacking device (B)
Therefore, even if the seedling growing boxes (1) are moved in a direction perpendicular to the conveying direction of the second conveying device (4), the seedling growing boxes (1) will not come into contact with each other.

In addition, the first, second, and third conveyance devices (7), (4), (
5) Respective conveyance speeds (Vl), (V2), (V3)
is set to the relationship V 2 > V 3 > 1/2·V, and furthermore, according to claim 1, the relationship V2>V is set, so the two-tier stacking device (B)
Two-tiered seedling growing boxes sent out from (1), (1)
A gap will also be formed between them.

〔Effect of the invention〕

Therefore, by setting the conveyance speed of the two-tier stacking system, contact between the seedling boxes sent out from the two-tier stacking device and during the operation for two-tier stacking can be eliminated, and as a result, the transportation posture of the seedling boxes can be changed. A mechanism capable of suppressing disturbance and unevenness of the soil bed was rationally constructed.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

Figure 1 shows a plant that performs everything from seeding to stacking, and the plant includes an elevator unit (2) that transports groups of seedling boxes (Ig) stored in a stacked state to the working level. , this elevator unit (2)
a feeding device (3) that separates and sends out seedling growing boxes (1) one by one from a group of seedling growing boxes (Ig);
There is a sowing processing section (A) that performs sowing processing on the seedling raising boxes (1) that are continuously sent out from the seedling processing section (A).
) and a two-tier stacking device (B) that stacks the seedling boxes (1) sent from the second stacking device via a roller conveyor (4) serving as a second transport device in two tiers (upper and lower) and sends them out, and a chain from this two-tier stacking device (B). A stacking mechanism (a stacking mechanism) that stacks two-tiered seedling growing boxes (1), (1) sent via a conveyor (5) (an example of a third conveyance device) onto a transport cart (6) until the number of seedling boxes reaches 30.
C).

The seedling boxes (1) stacked in this plant are allowed to germinate in an environment of appropriate temperature and humidity, and then transferred to a greening shelf (not shown) where they are grown by supplying moisture and sunlight. It is designed to let you do so.

Further, the seeding processing section (A) includes a belt conveyor (7) as a first conveyance device, a bed soil supply device (8), and an irrigation device (
9), a seeding device (10), and a soil covering device (11), as well as a bed soil supply device (8) and a soil covering device (11).
Soil is replenished to each via a scooping type conveyor (12) and two conveyors (13), (13),
Further, the stacking mechanism (C) includes a lift device (14) that lifts the two-tiered seedling boxes (1), (1) that are fed into a shelf in a horizontal position, and a lift device (14) at the upper end of the lift device (14). A cross-feeding device (15) that transports the reached seedling boxes (1), (1) in a horizontal position to the stacking position, and an elevator (6) that supports the transport cart (6) in a level-adjustable manner at the stacking position. Also, the two-tiered stacking device (B)
is structured as follows.

In other words, this two-tiered stacking device (B), as shown in FIGS. 2 to 5, has a plurality of metal rollers (17a) on which the seedling box (1) is placed and conveyed in the horizontal direction. a conveyance device (17) that functions as a main frame (18), an elevating frame (2o) configured to be able to move up and down while being guided by guide rods (19), and this elevating frame (2o).
20), a double-acting type first air cylinder (
21) and the guide rod (2
2), (22) on the conveying device so that the seedling growing boxes (
The engaging piece (2) reaches a position overlapping with the bottom wall (1a) of (1).
A pair of slide members (23) having (3a)...
23), a pair of double-acting second air cylinders (24) that simultaneously slide the pair of slide members (23), (23), and the seedling box (1) have reached the lifting position. a first sensor (25) that detects that
A second sensor (2) detects that the next seedling box (1) has reached the position where the lifted seedling box (1) should be lowered.
6), a third sensor (27) that detects that the seedling boxes (1) are being sent continuously, a control device (28) that manually transmits signals from these three sensors, and a first and third sensor. 2 air cylinders (21), (24), and an air supply device (D) that supplies air to (24),
In this device, before the seedling box (1) reaches the lifting position, the first air cylinder (21) is extended, the second air cylinders (24), (24) are contracted, and the first sensor ( 25) detects the seedling box (1), the first air cylinder (21) is contracted and the engagement piece (
23a), (23a) while the seedling raising box (1) is locked.
) and hold it, and then check the second seedling box (1) to make sure that the next seedling box (1) has reached approximately below the lifted seedling box (1).
When detected by the sensor (26), the second air cylinder (24
), by extending (24), the seedling growing box in the holding state (
1) is designed to fall in two stages.

In this two-tiered system, the belt conveyor (7),
The conveyance speeds (Vl), (V2), (V3) of the roller conveyor (4) and chain conveyor (5), respectively, are V
2 > V + , and V2 > V3 > 1/2・
By setting to V, lifting operation for two-tier stacking,
And the seedling box (1) sent out from the two-tier stacking device (
1) They are constructed so that they do not come into contact with each other.

In addition, in order to perform the above-mentioned operation, the air supply device (D)
is a compressor (29) and two solenoid valves (30),
(30) and a pressure regulating valve (31), (31) that reduces the operating speed of the air cylinder to prevent the occurrence of shock, and each solenoid valve (30), (30) is connected to the control device (28). ) is operated by signals from

Also, the first, second, and third sensors (25), (26),
(27) are each constructed of a light-sensitive type having a light emitting part (L) and a light receiving part (S), and as shown in FIG. 3, the first and second sensors (25) and (26) are respectively The beam directions are set non-parallel so as not to interfere with each other, and this device (B)
Now, the detection position of the first sensor (25) is changed to the second sensor (26).
The sensor is slightly deviated to the upper side of the conveyor than the detection position of the sensor.

In addition, the third sensor (27) is configured to move the seedling box (1) detected by the first sensor (25) so that the final seedling box (1) is not held in the lifted state as described above when finishing the work.
) is the final one, and in this device (B), the first sensor (25) and the third sensor (27)
The first air cylinder (21) is allowed to contract at the timing when the seedling boxes (1) and (1) are simultaneously detected, and (
If the third sensor (27) does not detect the seedling raising box (1), lifting is not performed), and this third sensor (27)
is placed at an appropriate position with reference to the raised seedling box (1) in order to eliminate false detection.

[Another example]

In addition to the embodiments described above, the present invention may also include, for example, a two-tier stacking device that operates to lower a previous seedling growing box and stack the next seedling growing box on top of it, and the form of the conveying device may also be changed. The embodiments can be implemented in various ways without being limited to the form, and the seeding treatment system of the present invention can also be used for manual stacking work.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the sowing treatment mechanism according to the present invention, and the first
The figure is a side view of the seeding plant, Figure 2 is a partially cutaway side view of the two-tier stacking device, and Figure 3 is a schematic plan view of the two-tier stacking device.
FIG. 4 is a vertical sectional view of two stacked units, and FIG. 5 is a block diagram of the control system. (1)...Seedling raising box, (4)...Second transport device, (5)...Third transport device, (7)...
...First conveyance device, (A) ... Seeding processing section, (B) ... Two-tier stacking device, (V, ),
(V2), (V, )...Feed rate.

Claims (1)

[Claims] 1. The seedling raising box (1) that has been supplied with bed soil, sown, and covered with soil is placed in the first
The seeding processing section (
A), the seedling raising box sent out from this sowing processing section (A) (
1) at a higher speed than the first transport device (7), and the seedling raising boxes (1) sent by this second transport device (4) are stacked in upper and lower layers. A seeding treatment mechanism comprising two stacking devices (B). 2. Place the seedling raising box (1) that has been supplied with bed soil, sown, and covered with soil into the first
The seeding processing section (
A), the seedling raising box sent out from this sowing processing section (A) (
1) at a higher speed than the first transport device (7), and the seedling raising boxes (1) sent by this second transport device (4) are stacked in upper and lower layers. A two-tiered stacking device (B), a third conveying device (5) for transporting the two-tiered seedling growing boxes (1), (1) sent out from the two-tiered stacking device (B), and Conveyance device (5
) is lower than the feed speed (V_2) of the second transport device (4), and the first transport device (7)
The seeding processing mechanism according to claim 1, wherein the seeding processing mechanism is set to a value larger than half the value of the feed rate (V_1) of.