JPH03183405A - Seedling box processing equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a processing device for seedling growing boxes, and more particularly, to a device for stacking seedling growing boxes in two tiers after sowing in order to perform stacked seedling growing. be.

[Conventional technology]

Conventionally, there has been a device for stacking seedling boxes after sowing in order to perform stacking of seedlings, as shown in Japanese Patent Application Laid-open No. 63-71025. The seedling boxes are held in a horizontal position like a shelf and lifted, and the seedling boxes that have reached a predetermined level by being lifted in this way are sent laterally in the horizontal position and stacked continuously at a predetermined position. There is.

[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 throughput, when the feed is stopped, the seedling box will be uneven on the floor, causing seedlings that are unsuitable for planting. Become.

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 is conceivable to increase the processing capacity by sending in boxes, or if the work is to be carried out manually, by doubling the number of seedling boxes that the worker can handle. It is configured to lift the next seedling box and stack it on top of the next seedling box to be sent, or to lower the seedling box after sowing and stack the next seedling box on top of this seedling box. It is possible to do so.

Also, assuming that the two-tier stacking device configured as described above is installed in a transport system to which the seedling-raising boxes are sent after the seeding process,
If the total number of seedling boxes sent out from the sowing system is an even number, there will be no inconvenience, but if the total number is odd, the final seedling box may be raised or lowered in the above-mentioned two-tier stacking device. This will continue to be maintained as it is, and there is room for improvement.

Therefore, as shown in FIGS. 6, 7, and 8, it is determined whether or not there is a seedling growing box (1) in the transport system (4) that supplies the seedling growing box (1) to the two-tiered stacking device (B). A detection means (27) is provided, and when the detection means (27) no longer detects the seedling raising box (1), the seedling raising box (1) is placed in the two-tier stacking device (B).
If there is, it may be possible to configure the seedling box (1) to be sent out as it is without lifting or lowering, but in the case shown in Fig. 6 or 7, In cases such as when the distance between the seedling raising boxes (1) and (1) changes, it may not be possible to determine the presence or absence of the seedling raising box (1) in the transport system (4). Although the presence or absence of (1) can be easily determined, since a plurality of detection means (27) are required, there is room for improvement in terms of cost.

An object of the present invention is to provide a system in which a two-tiered stacking device is installed in a conveyance system for transporting seedling boxes after sowing, and when the final seedling-growing box is supplied to the two-tiered stacking device, the final The seedling raising box rationally constitutes a processing device that is not held in a two-tier stacking device.

[Means to solve the problem]

A feature of the present invention is that the seedling raising box after sowing is lifted up and stacked on the top of the next seedling raising box, or the seedling raising box after sowing is lowered and placed on the top of this seedling raising box to be sent next. A two-tier stacking device is configured to perform one of the stacking operations for overlapping the seedling-growing boxes that are stacked, and the stacking operation of the seedling-growing boxes in the direction along the conveyance direction of the seedling-growing boxes is configured based on the stacking position of the two-tier stacking device. A seedling growing box supply system to the two-tiered stacking device includes a detecting means for determining the presence or absence of a seedling growing box by setting a position near the position separated by a width and on the side of the overlapping position, and the detecting means control means for detecting the absence of a seedling box and for feeding the seedling box from the two-tier stacking device without performing a stacking operation when the seedling box is supplied to the stacking position. The point is that it becomes, its action, and,
The effects are as follows.

[For production]

For example, if the above characteristics are configured as shown in FIG. The detection means (27) can detect the seedling growing box (1) even if the seedling growing box (1) is in close proximity to the seedling growing box (1). Even if the seedling raising box (1) is separated, the detection means (27) detects the seedling raising box (1) until the separation distance reaches a value close to the width (W) of the seedling raising box (1) in the direction along the transport direction of the seedling raising box (1). ), and as long as the detection means (27) detects the seedling box (1), the control means (28) can detect the two-tier stacking device (
B) continues to operate, and place the seedling box (1) in the overlapping position (E).
) even if the detection means (27) is present in the nursery box (1).
If not detected, the control means (28) will not operate the double stacking device (B).

〔Effect of the invention〕

Therefore, even though the detection means can be configured with a single sensor, even when the final seedling growing box is supplied to the two-tier stacking device, the final seedling growing box is held in the two-tier stacking device. The device, which is difficult to avoid, has been constructed rationally and without significantly increasing costs.

〔Example〕

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

Figure 4 shows a plant that consistently performs everything from seeding to stacking. , 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), and this feeding device (3).
A seeding processing mechanism (A) performs seeding processing on seedling growing boxes (1) that are continuously sent out from ) stacking device (B
) and a chain conveyor (
5), two-tiered seedling boxes (1), (
1) and a stacking mechanism (C) that stacks 30 sheets on a transport cart (6).

In addition, the seedling boxes (1) stacked in this plant are allowed to germinate 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 designed to let you do so.

Further, the seeding processing mechanism (A) includes a belt conveyor (7).
, floor feeding device (8), irrigation device (9), seeding device (1
0), a soil covering device (11), and a rake-type conveyor (12) and two conveyors (13) for each of the floor supply device (8) and the soil covering device (11),
(13), and the stacking mechanism (C) is fed with two-tiered seedling growing boxes (1);
(1) Lifting device (
14) and the seedling box that has reached the top of the lift device (14) (
1), (1) is transported to the stacking position in a horizontal position by a cross-feeding device (15), and a transport cart (6) at the stacking position.
) and an elevator (16) that supports the stacking apparatus (16) in a level-adjustable manner, and the stacking apparatus (B) is constructed as follows.

In other words, as shown in FIGS. 1 to 3 and 5, this two-tier stacking device (B) uses metal rollers ( 17a)...
The transport device (17), which is controlled by multiple managers, and the main frame (
18), an elevating frame (20) configured to be able to move up and down while being guided by guide rods (19)...
, a double-acting type first air cylinder (21) that raises and lowers this lifting frame (20), and a lifting frame (20).
>, the guide rods (22), (22) guide the guide rods (22), (22) so that they can slide freely in opposing horizontal directions, and are moved toward each other on the conveying device. A pair of slide members (23), (23) having engaging pieces (23a) that reach a position overlapping with the bottom wall (la) of the seedling raising box (1), and a pair of slide members (23), (23). 23), a pair of double-acting second air cylinders (24), (24) that simultaneously slide the seedling box (1), a first sensor (25>) that detects when the seedling box (1) has reached the lifting position, A second sensor (26) that detects when the next seedling box (1) has reached the position where the current seedling box (1) should be lowered;
The third sensor (27) detects that the
an example of a detection means), a control device (28) to which signals from these three sensors are input (an example of a control means), and a first
, second air cylinder (21), (24), (24
), the first air cylinder (21) is extended before the seedling raising box (l) reaches the lifting position;
Moreover, the second air cylinders (24), (24) are contracted, and when the first sensor 25) detects the seedling raising box (1), the first air cylinder (21) is contracted to release the holding piece (23a). ), (23a), lift and hold the seedling raising box (1), and then move it to the next seedling raising box (1).
) reaches substantially below the lifted seedling box (1), the second sensor (26) extends the second air cylinders (24), (24) to raise the held seedling box (1). ) are stacked in two tiers to prevent them from falling.

In this device, when the seedling growing box (1) is dropped, a force is applied to the moving seedling growing box (1) (lower seedling growing box (1)) to suppress its movement. Since the device (17) is composed of metal rollers (17a), the lower seedling growing box (1) slides on the rollers to soften the impact.

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 pressure regulating valves (31), (31) that reduce 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). It 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. The light beam direction is set non-parallel to avoid interference, and this device (B)
Now, the detection position of the first sensor (25) is changed to the second sensor (26).
> is slightly deviated to the upper side of the conveyance side than the detection position.

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 detected at the same time (if the third sensor (27) does not detect the seedling box (1), the first air cylinder (21) is lifted). Also, this third sensor (27) detects the position of the seedling growing box (1) in the direction along the conveyance direction of the seedling growing box (1) with reference to the seedling growing box (1) at the overlapping position (E). Width (W
) in order to eliminate false detection by arranging them at a position slightly deviated toward the overlapping side.

In addition, when lifting with this device (B), the conveyance speed of the roller conveyor (4) is made higher than the conveyance speed of the conveyor belt (7) of the seeding processing mechanism (A) so as not to cause interference between the seedling boxes. Yes, this device (B) has a seedling box (1
) is supplied, an appropriate interval is formed between the respective seedling growing boxes (1), (1).

[Another example]

In addition to the embodiment described above, the present invention has a structure in which, for example, a two-tiered stacking device lowers a seedling-raising box after sowing and is operated to stack the next seedling-raising box on top of this seedling-raising box. Alternatively, the detection means may be a contact type sensor.

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 seedling box processing device according to the present invention, and FIG. 1 is a partially cutaway side view of the two-tiered stacking device, and FIG. 2 is a plan view of the two-tiered stacking device and the conveyance system. , FIG. 3 is a vertical cross-sectional view of the two-tier stacking device, FIG. 4 is a side view of the seeding plant, FIG. 5 is a block diagram of the control system, and FIGS. 6, 7, and 8 are the detection means. This is a comparative example showing the arrangement of. (1)... Seedling raising box, (27)...Detection means, (28)...Control means, (B) Old...
Two-stage stacking device, (E) ...... stacking position, (W
)・Mountain・・Width.

Claims (1)

[Claims] Lift up the seedling raising box (1) after sowing and place it on top of the next seedling raising box (1), or lower the seedling raising box (1) after sowing and place it on top of the next seedling raising box (1). A two-tiered stacking device (B) is configured to perform one of the stacking operations for stacking the next seedling raising box (1) on the upper surface, and the stacking position (E) of this two-tiered stacking device (B) is shown. Based on , the position is set in the vicinity of a position separated by the width (W) of the seedling raising box (1) in the direction along the conveyance direction of the seedling raising box (1), and on the side of the overlapping position (E). Seedling box (1
) is provided in the seedling box supply system to the two-tier stacking device (B).
) detects the absence of the seedling box (1), and when the seedling box (1) is supplied to the stacking position (E), the seedling box (1) is removed without performing the stacking operation. ) from the two-tier stacking device (B).