JPH08126414A - Seeding device - Google Patents

Abstract

PURPOSE: To provide a seeding device for intermittently transporting a raising seedling box at a seeding treatment position and smoothly transferring a raising seedling box after the seeding treatment to a covering soil feed part. CONSTITUTION: This seeding device is equipped with a first conveyor 4B which is intermittently driven so as to transport a raising seedling box A in a loaded state at a seeding part, a second conveyor 4C for sending the raising seedling box A in a loaded state from the first conveyor 4B to a covering soil feed part and a controlling means which intermittently drives the second conveyor 4C synchronously with the first conveyor 4B at a point of time when the raising seedling box A on which the transporting force of the first conveyor 4B acts is delivered to the second conveyor 4C and continuously drives the second conveyor 4C at a point of time when the raising seedling box A reaches a position where the transporting force from the first conveyor 4B will not act.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed soil supplying section for supplying bed soil to a seedling raising device fed by a conveyor, and a seed soil at a predetermined interval in the feeding direction of the conveyor to the floor soil fed to the seedling raising device. The present invention relates to an improvement of a sowing device including a sowing section for sowing and a soil cover supplying section for supplying soil to the upper surface of the bed soil on which seeds have been seeded.

[0002]

2. Description of the Related Art As a seeding device similar to the above device, there is one shown in Japanese Patent Application Laid-Open No. 4-304806.
In this conventional example, an engaging claw that reciprocates is engaged with a pot portion of a cell tray, and a force from the engaging claw is used to feed a seedling-growing box (seed-growing device) at predetermined intervals.

[0003]

However, in the case where the seedling raising device is fed by the feeding force of the reciprocating engaging claws as in the conventional example, an impact force is applied when the engaging claws contact the seedling raising device. It is difficult to send seedlings smoothly because it is easy,
Further, since the feeding force is applied to a part of the seedling raising device, the posture of the seedling raising box may be disturbed during feeding, and there is room for improvement.

Further, in this type of seeding device, the feeding of the seed-growing device during continuous feeding of the covering soil allows the covering soil to be kept uniform and the seed-growing device is fed at a high speed to improve the work efficiency. Will be things. Assuming a conveyor that intermittently sends the seedling raising device in the seeding section and a conveyor that continuously feeds the seedling raising device in the soil cover supplying section, the respective conveyors in the intermediate position between the seeding section and the soil covering supplying section By forming an area where the transport force does not act on the seedling raising device at the same time, it is necessary to eliminate the action of the transporting force from the conveyor of the soil cover supply unit on the seedling raising device at the seeding position to ensure the intermittent operation of the seedling raising device. Become. However, if a region in which the conveying force from any conveyor does not act is formed in this way, it is difficult to smoothly transfer the seedling raising device, and there is room for improvement.

The object of the present invention is to provide a smoother seeding unit in the seeding section than that to be sent by engaging claws, to intermittently feed the seedling raising apparatus without disturbing the posture, and to smoothly feed the seedling raising apparatus from the position of the seeding section. The point is to reasonably configure the seeding device to be delivered to the department.

[0006]

The features of the present invention are, as described at the beginning, a bed soil supplying section for supplying bed soil, a seeding section for sowing seeds at a set interval in the feed direction, and a soil covering for the upper surface of the bed soil. In the seeding device provided with each of the soil covering supply unit, the conveyor, the set interval at a predetermined time in the seeding unit, or, intermittently to send the seedlings in a mounted state at intervals of an integer multiple of the set interval. A first conveyor to be driven and a second conveyor for sending the seedling raising device from the first conveyor to the cover soil supplying unit in a mounted state are provided.
When the seedling raising device on which the feeding force of the conveyor acts is delivered to the second conveyer, the second conveyer is intermittently driven in synchronization with the first conveyer, and the seedling raising device on the second conveyer is fed from the first conveyer. When the position where the force does not act reaches the second
It is provided with a control means for continuously driving the conveyor, and its operation and effect are as follows.

[0007]

According to the above characteristics, the seedling raising device is intermittently sent while being placed on the first conveyor in the seeding section.
The posture of the seedling grower can be moved in a state where no impact force is applied as compared with the one sent by a reciprocating engaging claw like the conventional example, and the moving force is applied to the entire bottom surface of the seedling grower. Does not disturb. In addition, the driving mode of the second conveyor is switched between intermittent driving and continuous driving depending on whether the feeding force from the first conveyor acts on the seedling raising device and the state in which the feeding force does not act on the seedling raising device. Seedlings that have been seeded without the feeding force from the second conveyor acting on the seedling raising device during the seeding treatment, even though they do not form an area where the feeding force does not act on the seedling raising device in the treatment system. It is possible to speed up the vessel and send it to the soil cover supply section.

[0008]

As a result, the seeding section is smoothly sent in the seeding section, and the seedling raising apparatus is intermittently sent without disturbing the posture, and the seedling raising section from the seeding section is smoothly received in the soil covering section. The handing sowing device was reasonably constructed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5, a roller type conveyor line B for sending the seedling raising device A, a floor soil supplying section C for supplying the floor soil to the seedling raising device A sent by the conveyor line B, and a seedling raising device A. A seeding section D for sowing seeds at a set interval in the feeding direction of the conveyor line B with respect to the supplied bed soil, a soil cover supplying section E for supplying cover soil to the upper surface of the bed soil on which seeds have been seeded, and water for the upper surface of the soil cover. The irrigation units F that are supplied in a spraying manner are sequentially arranged in the feeding direction of the conveyor line B to configure a seeding device for vegetables and flowers.

The above-mentioned nursery box A is a nursery box 1, and this nursery box 1
The tray 2 has a large number of pot portions 2A ... The conveyor B is a floor soil supply section conveyor 3 arranged in the floor soil supply section C.
A seeding section conveyor 4 arranged in the seeding section D, a soil covering supply section conveyor 5 arranged in the soil covering supply section E, and a watering section F.
And the irrigation section conveyor 6 which is disposed at.

Each of the conveyors 3, 4, 5 and 6 is supported by a support shaft 9 having a pair of rubber rollers 8 and 8 between left and right frames 7 and 7 which form a pedestal, and each support shaft 9 is supported. Chain 11 on each sprocket 10 at the end of the
Is wound around to drive a plurality of rubber rollers 8 at a constant speed. The seeding section conveyor 4 includes an intermediate conveyor 4A to which the seedling raising apparatus A from the floor soil supplying section conveyor 3 is transferred, a first conveyor 4B for sending the seedling raising apparatus A at the seeding position, and a seedling raising apparatus A after the seeding treatment. The second conveyor 4C for sending out, the floor soil supply section conveyor 3 is driven by the electric motor M1 via the chain 12, the intermediate conveyor 4A is driven by the electric motor M2 via the chain 12, and the first conveyor 4B is driven by the electric motor M3 via the chain 12, the second conveyor 4C is driven by the electric motor M4 via the chain 12, and the soil cover supplying section conveyor 5 and the watering section conveyor 6 are driven by the electric motor via the chain 12. Driven by M5.

At the time of processing by this seeding device, after continuously supplying the bed soil from the bed soil supplying mechanism 13 to the seedling raising device A which is sent to the bed soil supplying section conveyor 3 which is continuously driven, The floor soil surface is leveled with a plurality of pressure suppressing rollers 14 and a plurality of rotating brushes 15, and the floor soil surface at the position of the pot portion 2A of the tray 2 is pressed by the protrusions formed on the outer periphery of the mold roller 16,
The concave portion is formed on the floor soil surface, and the processing in the floor soil supply section C is completed. Next, with respect to the seedling raising device A sent in a mounted state on the seeding section conveyor 4 which is intermittently driven in an operation pattern of sending a distance twice as long as the pot section 2A of the tray 2 and stopping for a predetermined time, a concave of the soil The nozzle 17 of the seeding mechanism 17 is located at the insertion position.
Two seeds are sown from A and 17A, and the treatment in the seeding section D is completed.

The seeding position of this seeding mechanism 17 is P,
As shown in P, the seeds are simultaneously sown at two positions in a row in a posture orthogonal to the feeding direction of the seeding section conveyor 4, and the seeding operation is performed by airing the seeds in the seed storage portion. With a negative pressure, only one particle is adsorbed at the tip of the nozzle and taken out.
Alternatively, similarly to the conventional example, a member having a seed hole is configured to actuate a seeding plate or the like to mechanically extract seeds and send the seeds to a seeding position.

Next, while feeding the seedling raising device A for which the seeding process has been completed to the soil-cover feeding section conveyor 5 which is continuously driven, the soil-covering mechanism 18 supplies the soil-covering soil to the top surface of the floor soil with a uniform thickness. The process in the soil covering supply unit E is completed. Next, water is sprayed from the irrigation mechanism 19 onto the upper surface of the seedling raising device A that is continuously fed by the irrigation unit conveyor 6 to end the treatment in the irrigation unit F, thereby completing the treatment in the seeding device. To do.

As shown in FIG. 2, a first sensor S1 is provided in the vicinity of the position of the mold roller 16, a second sensor S2 is provided at the end position of the intermediate conveyor 4A, and a third sensor S3 is provided at the conveyance start end position of the first conveyor 4B. , The fourth sensor S4 at the conveyance start end position of the second conveyor 4C, and the fifth sensor S5 at a position distant from the second conveyor 4C to the lower side of the conveyance, respectively.
It is configured to be able to determine the presence or absence of.

The second sensor S2 determines that the rear end of the seedling raising device A (end on the upper hand side of conveyance) has reached a position where the action of the conveying force of the floor soil supply section conveyor 3 is released, and The third sensor S3 determines that the tip of the seedling raising device A (end on the lower side of conveyance) has reached a position where the feeding force from the first conveyor 4B is received, and the fourth sensor S4 determines that the tip of the seedling raising device A is second. Conveyor 4
The fifth sensor S5 is arranged at a position where it is determined that the rear end of the seedling raising device A has reached the position where the transport force of the first conveyor 4C is released, when it is determined that the transport force from C has been reached. These sensors optically detect the existence of the seedling raising device A by blocking the light beam by the light emitting unit 20 that sends the light beam in the direction orthogonal to the conveying direction of the conveyor line B and the light receiving unit 21 that receives the light beam. It is configured to determine.

As shown in FIG. 6, a control device 22 is provided as a control means having an input system for signals from these sensors and an output system for controlling the electric motor. Since the partial conveyor 3 is continuously driven, the seeding section conveyor 4 is intermittently driven, and the soil covering supply section conveyor 5 is continuously driven, in order to smoothly transfer the seedling raising device A, the driving mode of the conveyor can be switched freely. Yes, the control operation of the control device 22 will be described below.

As shown in FIG. 7, when the first sensor S1 detects the seedling raising device A, the intermediate conveyer 4A is not driven, and the intermediate conveyer 4A is set in a free state to be continuously driven. The movement of the seedling raising device A at the driving speed of is allowed. Next, when the second sensor S2 detects the seedling raising device A, the intermediate conveyor 4A is driven at a speed equal to the driving speed of the floor soil supplying unit conveyor 3 and sent to the seedling raising device A after being separated from the floor soil supplying unit conveyor 3. Apply force. Next, when the third sensor S3 detects the seedling raising device A, intermittent driving of the first conveyor 4B is started, and at the same time, in synchronization with this driving, the intermediate conveyor 4A is intermittently driven to send the seedling raising device A and the seeding position P,
Seed at P. Next, when the fourth sensor S4 detects the seedling raising device A, the second conveyor 4C is intermittently driven in synchronization with the driving of the first conveyor 4B, and then when the fifth sensor S5 detects the seedling raising device A, The second conveyor 4C is configured to be continuously driven at the same speed as the soil cover supplying section conveyor 5. In addition, the intermediate conveyor 4A is switched to a continuous drive state and an intermittent drive state without being set in a free state when the seedling raising device A is continuously supplied.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, as a seedling raising device, it is possible to use only a tray having a plurality of pot portions without using a seedling raising box as described above, and it is also possible to use a seed coated with a drug, and a conveyor. It is also possible to configure the with a belt conveyor.

Further, as shown in FIG. 8, the present invention can be applied to a seeding device which can be used both for sowing vegetables and flowers and for sowing rice, and the seeding device is used as a seedling raising device for rice. On the other hand, the corner press device 23 for pressing the corner of the bed soil in the seedling raising device after supplying the bed soil, the irrigation mechanism 24 for paddy rice, and the seeding mechanism 25 for paddy rice are arranged in appropriate places (the above-mentioned embodiment). The same numbers as in the example are common to
In the case of sowing vegetables and flowers with this sowing device, the operation mode is controlled in the same manner as described above from the bed soil supplying section C to the sowing section D, and the irrigation for paddy rice is performed. The lower side of the conveyor at the position where the mechanism 25 is arranged is continuously driven at a constant speed.

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

[Brief description of drawings]

FIG. 1 is an overall side view of a seeding device.

FIG. 2 is a vertical sectional side view of a transport system of a seeding section.

FIG. 3 is a vertical cross-sectional view of the drive system of the floor soil supply section conveyor

FIG. 4 is a vertical sectional view of a drive system of a seeding section conveyor.

FIG. 5 is a vertical cross-sectional view of the drive system of the floor soil supply section conveyor

FIG. 6 is a block circuit diagram of a control system.

FIG. 7 is a diagram showing a drive mode of a conveyor.

FIG. 8 is an overall side view of a seeding device according to another embodiment.

[Explanation of symbols]

 4B 1st conveyor 4C 2nd conveyor 22 Control means A Seedling raising device C Bed soil supply part D Seeding part E Cover soil supply part

Claims (1)

[Claims] 1. A bed soil supply unit (C) for supplying bed soil to a seedling raising device (A) fed by a conveyor, and a set interval in the feeding direction of the conveyor with respect to the floor soil fed to the seedling raising device (A). In the seeding unit (D), a seeding unit (D) for seeding with seeds, and a soil covering supplying unit (E) for supplying soil to the upper surface of the bed soil on which the seeds are sown. A first conveyor (4B) intermittently driven to send the seedling raising device (A) in a mounted state at predetermined intervals or at intervals of an integral multiple of the preset interval, and the first conveyor (4B). )
The soil-covering section (E) with the seedling raising device (A) from
And a second conveyer (4C) for sending to the second conveyer (4C), and when the seedling raising device (A) on which the feeding force of the first conveyer (4B) acts is transferred to the second conveyer (4C). The conveyor (4C) is intermittently driven in synchronization with the first conveyor, and when the seedling raising device on the second conveyor (4C) reaches a position where the feeding force from the first conveyor (4B) does not act, the second conveyor Control means for continuously driving (4C) (2
A seeding device comprising 2).