JP2511545B2 - Seeding plant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is provided with a seeding treatment mechanism for supplying bed soil, sowing, and covering soil in a nursery box to be transported, and raising seedlings after sowing treatment by this seeding treatment mechanism. The present invention relates to an improvement of a sowing plant equipped with a stacking mechanism that stacks boxes until a predetermined number of boxes are reached.

[Conventional technology]

Conventionally, there is one shown in JP-A-63-71025 as a seeding plant configured as described above, and in this conventional example, seeding boxes that are seeded by a seeding mechanism and are fed horizontally are stacked. The mechanism keeps the shelf in a horizontal position and lifts it up, and by raising it in this way, the nursery boxes that have reached a predetermined level are sent horizontally in the horizontal position and stacked so that they are continuously stacked at a predetermined position. The mechanism is configured.

Further, in the seeding plant having a structure in which the seedling raising boxes after the seeding treatment are stacked by the stacking mechanism as in this conventional example, the applicant of the present invention is Japanese Patent Application No. 63-29 for the purpose of increasing the processing speed of the stacking.
As shown in Japanese Patent No. 8575, a structure in which a device for stacking seedling raising boxes is arranged in the transport path between the seeding treatment mechanism and the stacking mechanism and two or more seedling raising boxes that have been stacked in advance are further stacked by the stacking mechanism. Is proposed.

[Problems to be Solved by the Invention]

In the latter of the above-mentioned conventional examples, the stacking device lifts and supports the seedling-raising box after the seeding treatment, and the seedling-raising box in the lifted state is next seeded. By performing the operation of stacking the seedlings on the upper surface of the subsequent seedling raising box, the stacking device is configured to supply a plurality of seedling raising boxes in a stacked state, without increasing the feeding speed of the seedling raising box to the stacking mechanism. It is configured to improve efficiency.

By the way, if the seedling raising box was sent at a high speed to the stacking mechanism in order to increase the throughput without using this stacking device, when the feeding was stopped in the stacking mechanism, the bed soil of the seedling raising box was stopped. The seedlings are not suitable for planting.

However, in the case where the stacking device is configured like the configuration of this conventional example, when stacking the nursery boxes with this stacking device, the movement of the nursery boxes that have reached the stacking position of this device is stopped. Lifting it up, then lowering the upper nursery box on top of it while stopping the movement of the next nursery box that has reached this position, stacking it further, and sending it out. As a mechanism for lifting the seedling raising box, not only the entire device is complicated by requiring a member for engaging the left and right positions of the seedling raising box or the front and rear positions to raise the seedling raising box, but also when raising the seedling raising box. Requires a sufficient margin for lifting the stowage of the nursery box in order to avoid contact with the next nursery box, and it also takes time to reciprocate to raise and lower the nursery box. There is room for improvement et al.

An object of the present invention is to utilize the effectiveness of arranging a means for stacking seedling raising boxes in a transportation path between a seeding treatment mechanism and a stacking mechanism, and to efficiently construct a highly efficient work by constructing this stacking means rationally. The point is to configure a seeding plant that enables

[Means for solving the problem]

As described in the beginning, the features of the present invention include a bed soil supplying, seeding, and seeding treatment mechanism for covering soil in a nursery box to be transported, and the seedling raising box after the seeding treatment in the seeding treatment mechanism is vertically arranged. In a sowing plant equipped with a stacking mechanism for stacking until reaching a predetermined number of sheets, in a transfer path between the seeding processing mechanism and the stacking mechanism, a transfer mechanism for horizontally sending the seedling raising box after the seeding process, and this transfer mechanism. A descending mechanism that moves and holds the fed nursery box in a horizontal position,
The lowering mechanism is provided with a sending-out mechanism for sending out the two-stage stacked seedling-raising box after the next seedling-raising box sent from the transport mechanism is superposed on the upper surface of the seedling-raising box held at the lower position. The two-stage stacking device is arranged, and its operation and effect are as follows.

[Action]

According to the above feature, the seedling raising box sent by the transport mechanism after the sowing process is held at the position moved downward by the descending mechanism of the two-stage stacking device, and the next seedling raising from the transport mechanism is performed on the upper surface of this seedling raising box. The boxes are piled up and the seedling raising boxes thus stacked in two stages are sent out by the feeding mechanism.As a result, the stacking amount per unit time in the stacking mechanism is increased without increasing the speed of the seedling raising boxes fed to the stacking device. And the soil on the nursery box is not biased.

In other words, this two-stage stacking device has a form in which the seedling raising boxes that are continuously sent out from the seeding treatment mechanism are lowered while the lowering mechanism receives them from below, so that the seedling raising boxes are lifted from both sides as in the conventional example. The structure is simplified by not requiring a member or the like that can be switched between a supported state and a released state.

Further, since the next seedling raising box is sent to the overlapping position by the moving force from the transport mechanism with respect to the descending seedling raising box and reaches the overlapping state, as in the conventional example, the raised seedling raising box is It is not necessary to stop the transport system that feeds the next nursery box like the one that stops the feeding of the lower nursery box when the next nursery box reaches the lower position, and the descent mechanism is in the stopped state. Since the next nursery box is fed to the upper surface of the nursery box held by, the control operation for stopping the feeding of the next nursery box is not required, the processing speed is improved, and further the feeding of the nursery box is stopped. The special structure for this is as simple as a stopper.

Further, in this two-stage stacking device, it is also possible to send out the nursery boxes that have reached the stacked state immediately after they are stacked by the sending mechanism, so that the previous nursery box is reciprocally moved in the vertical direction as in the conventional example. The operation becomes unnecessary, the control operation is simplified, and the processing speed in the two-stage stacking device can be further increased.

〔The invention's effect〕

Therefore, by arranging the two-stage stacking device that performs the operation of stacking the next seedling-growing box on the upper surface of the preceding seedling-raising box in the transport path between the seeding treatment mechanism and the stacking mechanism, the two-stage stacking device can be easily manufactured. At the same time, the seeding plant was constructed which is capable of increasing the amount of stacking processing while suppressing the uneven distribution of the bed soil of the nursery box and further improving the good aspect of the conventional plant.

〔Example〕

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

Fig. 4 shows a plant that consistently performs the seeding process to the stacking process. The plant is an elevator unit (2) that transfers 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 seeding treatment on ... and this seeding treatment mechanism (A)
From a roller conveyer (4) (an example of a transport mechanism), a two-stage stacking device (B) that stacks and sends the two seedling raising boxes (1) vertically, and a chain conveyor from the two-stage stacking device (B). The nursery box (1) in a two-tiered state sent via (5), and a stacking mechanism (C) for stacking up to 30 sheets on a carrier (6).

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 two-stage stacking device (B) is configured as follows.

That is, as shown in FIGS. 1 to 3, this stacking device (B) is provided with a plurality of metal rollers (17) on which the nursery box (1) is placed and continuously conveyed in the horizontal direction. And a main frame (20) including an air cylinder (19) for raising and lowering the lifting frame (18). The lifting frame (18) and the main frame (20) A plurality of guide rods (21) are interposed between and.

Further, in this two-stage stacking device (B), the first and second limit switches (22), () are used to determine the positioning of the seedling raising box (1) supplied and the lowering and raising operations of the air cylinder (19). A stopper (24) having 23) is attached so as to be able to move up and down via a rack and pinion type lifting device (25).

The lifting frame (18) includes a first frame (18a) connected to the air cylinder (19) and the first frame (1
8a) and a second frame (18b) which is supported so as to be movable up and down, and the second frame (18b) with respect to the first frame (18a) has an upper end (2
It is supported by being guided by 1a) and urged upward by a compression spring (26).

Further, each of the rollers (17) is linked by an endless rotation chain (27), and one of these rollers (17) is below a rubber roller which is constantly driven by power from an electric motor (28). (29) is located.

In this device, when the first seedling raising box (1) is supplied, the stopper (24) determines the stop position of the seedling raising box (1) and at the same time the signal from the first limit switch (22). The raising and lowering frame (18) is lowered by an amount equal to the thickness of the seedling raising box (1) by the operation of the air cylinder (19), and then the succeeding seedling raising box (1) is the first stage seedling raising box (1). When added to the
The frame (18b) descends against the urging force of the compression springs (26), and as a result, all the rollers (17) are driven by the contact between the rubber roller (29) and the roller (17). The stopper (24) is lowered by a signal from the second limit switch (23) to send the nursery box (1) in a two-tiered state to the chain conveyor (5).

The operation of the air cylinder (19) is set so that the air cylinder (19) is lifted when a predetermined time elapses after the second limit switch (23) detects the seedling raising box (1).

Further, 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 driving system of the roller (17) are collectively referred to as a feeding mechanism (E). ) Is called.

[Another embodiment]

In addition to the above embodiment, the present invention may use a non-contact sensor for grasping the timing of operating the descending mechanism or the timing of operating the feeding mechanism.

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 two-stage stacking apparatus for raising seedlings according to the present invention. Fig. 1 is a side view of the apparatus in the state where one seedling raising box is supplied, and Fig. 2 is a second raising seedling box. FIG. 3 is a side view of the apparatus in the state of being supplied with, FIG. 3 is a vertical sectional view of the apparatus, and FIG. (1) …… Raising seedling box, (4) …… Transport mechanism, (A) …… Seeding treatment mechanism, (B) …… Two-stage stacking device, (C) …… Stacking mechanism, (D) …… Descent mechanism , (E) …… Sending mechanism.

Claims (1)

(57) [Claims] 1. A seedling raising mechanism (A) for supplying bed soil, sowing, and covering soil is provided in a seedling raising nursery box (1) to be transported, and the seedling raising nursery box (1) after seeding treatment by this seeding treatment mechanism (A). ) Is a seeding plant having a stacking mechanism (C) for stacking until a predetermined number is reached, and the seedling raising box after the seeding process is provided in a transport path between the seeding processing mechanism (A) and the stacking mechanism (C). A transport mechanism (4) for sending (1) in the horizontal direction, a descending mechanism (D) for moving and holding the nursery box (1) sent by the transport mechanism (4) in a horizontal position, and this descending operation. After the next seedling raising box (1) sent from the transport mechanism (4) is overlaid on the upper surface of the seedling raising box (1) held in the lower position by the mechanism (D), the seedling raising in this two-stage stacked state Two-stage stacking device (B) comprising boxes (1) and a delivery mechanism (E) for delivering (1) Planting plant.