JPH03187302A - Device for two-stage stacking of nursery box - Google Patents

Abstract

PURPOSE:To enable two-stage stacking without shocking by stacking the next nursery box from a conveying mechanism to the top surface of a nursery box held at a lowering position with a lowering mechanism (D) and delivering the nursery boxes stacked in the upper and lower two stages as described above. CONSTITUTION:A device equipped with a conveying mechanism 4 for feeding a nursery box 1 after seeding treatment in the horizontal direction, a lowering mechanism (D) for moving the nursery box 1 fed with the conveying mechanism 4 directly in a horizontal posture downward, holding the nursery box 1 and stacking the next nursery box fed from the conveying mechanism on the top surface of the nursery box 1 held in the lower position with the aforementioned lowering mechanism (D) and a delivering mechanism (E) for subsequently delivering the nursery boxes in a two-stage stacked state. The lowering mechanism (D) is capable of stacking the next nursery box 1 from the conveying mechanism 4 on the top surface of the nursery box 1 held at the lower position and the nursery boxes 1 and 1 stacked in the two upper and lower stages as described above can be delivered with the delivering mechanism (E).

Description

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

[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 sending a seedling box, it is impossible to send in the next seedling box until this box is lifted, making it difficult to perform high-speed stacking processing with this device. It has a structure.

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.

The purpose of the present invention is to reduce the amount of movement required by the operator when performing manual stacking work, and to reduce the amount of movement required by the operator when stacking the seedling boxes by hand, and to stack the seedling boxes without increasing the feeding speed when using a stacking device such as the one in the reference. The point is to rationally configure an apparatus that can increase the number of sheets processed.

[Means to solve the problem]

The features of the present invention include a transport mechanism that horizontally transports seedling boxes after sowing, a lowering mechanism that moves and holds the seedling boxes sent by this transport mechanism downward in a horizontal position, and a lowering mechanism that After the next seedling growing box sent from the transport mechanism is superimposed on the top surface of the seedling growing box held in position, the sending mechanism sends out the two-tiered seedling growing box, Its action and effects are as follows.

[For production]

When the above characteristics are configured as shown in FIGS. 1 to 3, for example, the lowering mechanism (D) is held in the lower position of the seedling box (
1) The next seedling growing box (
1> are stacked one on top of the other, and it becomes possible to send out the seedling growing boxes (1), (1) stacked in two tiers in this way using the sending mechanism (E).

In other words, this device stacks the seedling boxes that are sent continuously in two tiers and sends them out, so when stacking is done manually, the operator can simply install this device in the conveyance system after the sowing line. This means that two seedling boxes (1) and (1) can be handled at the same time, and even when using a stacking device as shown in the reference, just by installing the device in the conveyance system, two seedling boxes (1) and (1) can be handled at once. The seedling raising box (1) (1) can be lifted up into a shelf-like position at a -degree angle, and in addition, with this device, the next seedling raising box (1) can be raised against the top surface of the seedling raising box (1) held in the lower position. Since the operation of overlapping the two is performed, the holding level at the bottom is adjusted by the transport mechanism (
By setting the transport level below the transport level of 4) by about the thickness of one seedling box (1), the next seedling growing box (1) will not be dropped, and the second seedling growing box (1) will be able to move forward without being shocked. This will allow you to stack layers.

〔Effect of the invention〕

Therefore, when performing manual stacking work, the amount of movement performed by the worker is reduced, and when using a stacking device that lifts the seedling boxes into a shelf, the speed at which the seedling boxes are fed is not increased. A device has been rationally constructed that can increase the number of sheets that can be stacked and can also prevent unevenness on the floor due to shock when stacking two sheets.

〔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 (1g); and this feeding device (3).
A seeding processing mechanism (A) performs seeding processing on the seedling raising boxes (1) that are continuously sent out from the seedling processing mechanism (A), and a roller conveyor (4) (an example of a conveyance mechanism) is passed from this seeding processing mechanism (A) to A two-tiered stacking device (B) that stacks the seedling boxes (1) to be sent in two tiers above and below and sends them out, and a two-tiered seedling growing box that is sent from this two-tiered stacking device (B) via a chain conveyor (5). (1), and a stacking mechanism (C) that stacks (1) on a transport cart (6) until 30 sheets are stacked.

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 looks like this.

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 (1),
(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 elevator (16) in a level-adjustable manner, and the two-tier stacking device (B) is constructed as follows.

In other words, as shown in FIGS. 1 to 3, this stacking device (B) is equipped with a plurality of metal rollers (17) for placing seedling boxes (1) and conveying them continuously in the horizontal direction. The main frame (2o) is equipped with an air cylinder (19) for raising and lowering the lifting frame (18).
) and the main frame (2o) is a guide rod (2o).
1) are interposed.

In addition, in this two-tier stacking device (B), the supplied seedling growing box (1
), and the lowering and raising operations of the air cylinder (19), the first and second limit switches (
A stopper (24) having 22) and (23) is attached to the stopper (24) so that it can be raised and lowered via a rack and pinion type lifting device (25).

Moreover, the elevating frame (18) is equipped with an air cylinder (19).
It consists of a first frame (18a) connected to the first frame (18a), and a second frame (18a) supported vertically movably with respect to the first frame (18a), and the second frame (18b) is connected to the second frame (18a). ) with respect to the guide rod (2
1) It is supported in a state where it is guided by the upper end portion (21a) of... and in a state where it is biased upward via a compression spring (26).

Furthermore, each of the rollers (17) is linked by an endless rotating chain (27), and these rollers (17) and
A rubber roller (29) that is constantly driven by power from an electric motor (28) is arranged below one of the rollers.

In this device, when the -th seedling box (1) is supplied, the stopper (24) determines the stopping position of the seedling box (1), and at the same time, the first limit switch (22) is turned on.
The lifting frame (18) is lowered by an amount equal to the thickness of the seedling box (1) by the operation of the air cylinder (19), and then the subsequent seedling box (1) is -
When stacked on top of the tiered seedling box (1), the second frame (18b) is compressed by the compression spring (26) due to the increased weight.
As a result, the rubber roller (29
) and roller (17), all rollers (1
7)... is driven, and the stopper (24) is lowered by a signal from the second limit switch (23) to send the two stacked seedling boxes (1) to the chain conveyor (5). It has become.

In addition, the air cylinder (19) is connected to the second limit switch (
23) detects the seedling raising box (1), the operation is set so that the raising operation is performed after a predetermined time has elapsed.

In this embodiment, the elevating frame (18) and the air cylinder (19) are collectively referred to as a lowering mechanism (D), and the roller (17) and the drive system for the roller (17) are collectively referred to as a feeding mechanism (E). ).

[Another example]

In addition to the embodiments described above, the present invention, for example, sets the conveyance system on the sending side to the same level as the conveyance mechanism, and when the seedling raising boxes reach a two-tier stacked state, the lower seedling raising box is raised and then the seedling raising box is raised. The operation may be set to send out the box, and a non-contact sensor may be used to determine when to operate the lowering mechanism or to determine when to operate the delivery mechanism.

Furthermore, the device of the present invention can be used in manual stacking work 4. It can also be used to improve the efficiency of

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 device for stacking two seedling boxes according to the present invention, and FIG. 1 is a side view of the device when one seedling box is supplied, and FIG. 2 is a two-layered seedling box. FIG. 3 is a longitudinal sectional view of the device, and FIG. 4 is a side view of the seeding plant. (1)...Seedling box, (4)...Transportation mechanism, (D)...Descent mechanism, (E)...
Feeding mechanism.

Claims (1)

[Claims] A transport mechanism (
4) and a lowering mechanism (D
) and the next seedling raising box (1) sent from the transport mechanism (4) are superimposed on the upper surface of the seedling raising box (1) held in the lower position by this lowering mechanism (D), and then these two A sending-out mechanism (E) that sends out the stacked seedling boxes (1), (1)
) A two-tiered device for stacking seedling boxes.