JPH0824448B2 - Nursery box processing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a seedling raising box treatment device, and more particularly to a device for stacking seedling raising seedlings in two stages so as to carry out stacked seedling raising. is there.

[Conventional technology]

Conventionally, for performing stacked seedling raising, as a device for stacking seedling raising boxes after seeding treatment, there is one shown in JP-A-63-71025, and in this reference, the seedling raising boxes are continuously sent. Hold it in a shelf shape and lift it up,
The seedling raising boxes that have reached a predetermined level by being lifted in this way are configured to be fed horizontally in a horizontal position and continuously stacked at a predetermined position.

[Problems to be Solved by the Invention]

Further, when carrying out stacked seedling raising, the seedling raising boxes after the seeding treatment may be stacked manually without using the apparatus of the above-mentioned reference.
However, when stacking seedling raising boxes by manual work, the work form is such that the seedling raising boxes sent out from the seeding line via a conveyor etc. are picked up one by one and placed continuously on a trolley, etc. The person has to move his body frequently, which makes the work troublesome.

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

Further, when stacking the nursery boxes using the device of the above-mentioned reference, since this device has a structure of lifting the nursery boxes in a shelf shape in a horizontal posture, the nursery boxes fed to the device should stop the feeding. Will be lifted.

This means that after feeding the nursery box, it is impossible to feed the next nursery box until this nursery box is lifted, and this device makes it difficult to perform high-speed stacking processing. ing.

By the way, when a nursery box was sent to this device at a high speed to increase the throughput, when the feeding was stopped, the soil of the nursery box became uneven and the seedlings unsuitable for planting. Becomes

Therefore, by interposing a device for stacking the seedling raising boxes after the seeding treatment in two stages, upper and lower, in the carrier system to which the seedling raising seedlings after the seeding treatment are sent, when using the device of the above-mentioned reference, the seedling raising seedlings in the two-stage stacked state are used. It is also possible to raise the processing capacity by sending a box, and in the case of performing manual work, it is also possible to double the seedling raising box that the operator can handle to improve the working capacity. It is configured to lift the subsequent nursery box and stack it on the upper surface of the next nursery box, or to lower the seedling box after the seeding process and stack the next nursery box on the upper surface of this nursery box. It is possible to do it.

In addition, assuming that the two-stage stacking device configured in this way is installed in the transport system to which the seedling raising box after the seeding treatment is sent, if the total number of seedling raising boxes sent out from the seeding treatment system is an even number Does not cause any inconvenience, but in the case of an odd number,
In the above-described two-stage stacking device, the final nursery box is kept in the lifted state or the lowered state, and there is room for improvement.

Therefore, as shown in FIG. 6, FIG. 7, and FIG. 8, a carrier system (4) for supplying the nursery box (1) to the two-stage stacking device (B).
A detection means (27) for determining the presence or absence of the nursery box (1) is provided, and the detection means (27) does not detect the nursery box (1), and the two-stage stacking device (B) is used for raising seedlings. Box (1)
In the case where there is the above, it is conceivable to send out the seedling raising box (1) as it is without performing the lifting operation or the descending operation, but in the one shown in FIG. 6 or FIG. When the spacing between the nursery boxes (1) and (1) changes, it may not be possible to determine the presence or absence of the nursery box (1) in the transport system (4), and in the case shown in FIG. Although it is possible to easily determine the presence or absence of (1), there is room for improvement in terms of cost because a plurality of detecting means (27) are required.

An object of the present invention is to interpose a two-stage stacking device in a carrier system for feeding a seedling-raising box after sowing treatment, and when the final seedling-raising box is supplied to this two-stage stacking device, The reason is that the nursery box rationally constitutes a processing device that is not held by the two-stage stacking device.

[Means for solving the problem]

The feature of the present invention is to lift the nursery box after the sowing process,
It is stacked on the upper surface of the nursery box to be sent next, or the seedling box after seeding is lowered, and the upper surface of this nursery box is stacked on the upper side of the nursery box to be sent next. Along with the stacking device, the stacking position of the two-stage stacking device is used as a reference, in the vicinity of a position separated by the width of the seedling raising box in the direction along the transport direction of the seedling raising box, and on the side of the stacking position. Detecting means for determining the presence or absence of a nursery box by setting a position in the nursery box supply system to the two-stage stacking device, to detect the absence state of the nursery box with this detecting means,
And, when the seedling raising box is supplied to the stacking position, a control means for sending this seedling growing box from the two-stage stacking device without performing the stacking operation is provided, and its action and effect. Is as follows.

[Action]

When the above features are configured as shown in FIG. 2, for example, the seedling raising box (1) is present at the stacking position of the two-stage stacking device (B), and the succeeding seedling raising box (1) is stacked. Even if it is very close to the nursery box (1) at the position,
The detecting means (27) can detect the seedling raising box (1), and even if the seedling raising boxes (1), (1) are largely separated from each other, this distance is the conveying direction of the seedling raising box (1). Until the value close to the width (W) of the nursery box (1) along the direction
The detecting means (27) can detect the nursery box (1), and as long as the detecting means (27) detects the nursery box (1), the control means (28) has a two-stage stacking device (B). ) Is continuously operated, and the detecting means (27) does not detect the seedling raising box (1) even if the seedling raising box (1) is present at the superposition position (E), the control means (28) causes the two. The stacking device (B) is not operated.

〔The invention's effect〕

Therefore, even if the detection means can be configured with a single sensor, even when the final nursery box is supplied to the two-stage stacking device, the final nursery box is retained in the two-stage stacking device. The hard-to-do device was constructed reasonably and without increasing costs too much.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

Fig. 4 shows a plant that consistently performs from sowing treatment to stacking treatment. The plant has an elevator unit (2) that moves the nursery box groups (1g) ... A feeding device (3) for separating and feeding the seedling raising boxes (1) one by one from the seedling raising group (1 g) from this elevator unit (2), and a seedling raising box (continuously sent out from this feeding device (3) ( 1) A seeding treatment mechanism (A) for performing a seeding treatment on ... And this seeding treatment mechanism (A)
A stacking device (B) for stacking and feeding the seedling raising boxes (1) sent from a roller conveyor (4) in two stages.
And a two-tiered seedling raising box (1) sent from the two-tiered device (B) via a chain conveyor (5),
It is composed of a stacking mechanism (C) for stacking (1) on a carriage (6) until it reaches 30 sheets.

The seedling raising boxes (1) stacked in this plant are germinated in an environment of appropriate temperature and humidity, then transferred to a greening shelf (not shown) and grown by supplying moisture and sunlight. It is like this.

The seeding treatment mechanism (A) includes a belt conveyor (7), a bed soil supply device (8), a watering device (9), a seeding device (10), and a soil covering device (11). A scraping type conveyor (12) and two conveyors (13), (1) for the floor soil supplying device (8) and the soil covering device (11) respectively.
Soil is replenished via 3) and the stacking mechanism (C)
Is a two-tiered seedling raising box (1), (1)
Lifting device that lifts the rack in a horizontal position (14)
And the nursery box (1) reaching the upper end of the lift device (14),
A horizontal feed device (15) for feeding (1) to the stacking position in a horizontal posture, and an elevator (16) for supporting the carriage (6) at the stacking position so that the level can be adjusted, and
The stacking device (B) is configured as follows.

That is, this two-stage stacking device (B) is shown in FIGS.
As shown in FIG. 5 and FIG. 5, a transfer device (17) having a plurality of metal rollers (17a) for placing the seedling raising box (1) and continuously transferring in the horizontal direction, Frame (18)
On the other hand, an elevating frame (20) configured to be vertically movable while being guided by the guide rods (19), and a double-acting first air cylinder (21) for elevating the elevating frame (20). And the slide frame (20) is slidably movable in the horizontal direction of the facing direction while being guided by the guide rods (22), (22), and is moved in the direction in which they approach each other. The engaging piece (23) that reaches the position where it overlaps with the bottom wall (1a) of the seedling raising box (1) on the transfer device in the closed state.
a) a pair of slide members (23), (23) having
A pair of double-acting second air cylinders (24) for simultaneously sliding the pair of slide members (23), (23),
(24), the first sensor (25) for detecting that the nursery box (1) has reached the lifting position, and the next nursery box (1) is placed at the position where the lifted nursery box (1) should be lowered. The second sensor (26) that detects the arrival and the third sensor (27) that grasps that the nursery box (1) is being sent continuously.
(Example of detection means), control device (28) to which signals from these three sensors are input (example of control means), and first and second air cylinders (21), (24), (24) And an air supply device (D) for supplying air to the device. In this device, the first air cylinder (21) is extended before the nursery box (1) reaches the lifting position, and
When the second air cylinders (24) and (24) are contracted and the first sensor (25) detects the nursery box (1), the first
By contracting the air cylinder (21), the engaging piece (23
a) and (23a) are held in a state of being lifted and held, and after that, the next seedling raising box (1) has reached almost below the raised seedling raising box (1). Second sensor (2
When it is detected in 6), the second air cylinders (24) and (24) are extended to drop the holding seedling raising box (1) and stack two stages.

Then, in this device, when the seedling raising box (1) is dropped, the movement suppressing force acts on the moving seedling raising box (1) (lower seedling raising box (1)). Since the device (17) is composed of metal rollers (17a) ..., the lower nursery box (1) slides on the rollers to soften the impact.

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

Also, the first, second, and third sensors (25), (26), (27)
Is a light-sensitive type having a light emitting portion (L) and a light receiving portion (S), and as shown in FIG. 2, the first and second sensors (25) and (26) do not interfere with each other. In this device (B), the detection position of the first sensor (25) is slightly displaced from the detection position of the second sensor (26) to the hand side of conveyance. .

Incidentally, the third sensor (27) detects the seedling raising box (1) detected by the first sensor (25) so that the final seedling raising box (1) is not held in the lifted state as described above when finishing the work.
Is the last one, and in this device (B), the first sensor (25) and the third sensor (27) simultaneously detect the nursery boxes (1), (1). First
The contraction operation of the air cylinder (21) is allowed (if the third sensor (27) does not detect the seedling raising box (1), the air cylinder (21) is not lifted up), and the third sensor (27) is at the superposition position ( E) The position is slightly deviated to the overlapping side from the position separated by the width (W) of the seedling raising box (1) in the direction along the transport direction of the seedling raising box (1) based on the seedling raising box (1) of E). It is arranged at a position to eliminate false detection.

The conveyor belt (7) of the seeding treatment mechanism (A) is set to the transport speed of the roller conveyor (4) so that the seedling raising boxes do not interfere with each other when the equipment (B) is lifted.
The feeding speed is higher than the feeding speed of the seedlings, and when the seedling raising box (1) is supplied to this device (B), the seedling raising boxes (1), (1) respectively.
An appropriate interval is formed in the.

[Another embodiment]

The present invention is, for example, a two-stage stacking device other than the above embodiment,
After lowering the seedling raising box after sowing treatment, on the upper surface of this seedling raising box,
It may have a structure that operates so as to stack the seedling raising boxes to be sent next, and the detecting means may be a contact type sensor.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a nursery box treating apparatus according to the present invention, etc., FIG. 1 is a partially cutaway side view of a two-stage stacking device, and FIG. , Fig. 3 is a vertical cross-sectional view of the two-stage stacking device, Fig. 4 is a side view of the sowing plant,
FIG. 5 is a block diagram of the control system, and FIG. 6, FIG.
FIG. 8 is a comparative example showing the arrangement of the detecting means. (1) ... seedling raising box, (27) ... detecting means, (28) ... control means, (B) ... two-stage stacking device, (E) ... stacking position, (W) ... width.

Claims (1)

[Claims] 1. Raising the seedling raising box (1) after sowing treatment,
The seedling raising box (1) to be sent next is overlaid, or the seedling raising box (1) after seeding treatment is lowered, and the seedling raising box (1) to be sent next is placed on the upper surface of this seedling raising box (1). Two-stage stacking device (B) to perform either stacking operation
And the width (W) of the seedling raising box (1) in the direction along the conveying direction of the seedling raising box (1) is separated with reference to the overlapping position (E) of the two-stage stacking device (B). The detecting means (27) for determining the presence or absence of the seedling raising box (1) by setting the position near the overlapping position (E) and the seedling raising device (B). In preparation for the box feeding system, the detection means (27) detects the absence state of the seedling raising box (1), and when the seedling raising box (1) is supplied to the stacking position (E), the stacking is performed. A seedling-raising-box processing apparatus comprising control means (28) for sending out the seedling-raising box (1) from the two-stage stacking device (B) without performing any operation.