JPH08130922A - Sowing apparatus - Google Patents

Abstract

PURPOSE: To provide a sowing apparatus enabling sowing from proper level while smoothly carrying also to a nursery vessel whose upper face is displaced upward by deformation. CONSTITUTION: A take-out part 33 for taking out seeds in series of prescribed interval in a direction perpendicular to feed direction of a conveyer from storage part of seeds is formed and a sowing system for guiding seeds from the take out part 33 through plural tubes 34 and a guide 35 forming feed out ports in series in the direction perpendicular to the feed direction of the conveyer on the lower face to the neighborhood of bed soil face of a nursery vessel is formed and allowable mechanism of a level displacement capable of allowing free displacement of upper and lower positions of the guide 35 is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a seeding device for sowing seeds at a predetermined interval along the feeding direction of a conveyor with respect to a floor soil surface of a seedling raising device fed by a conveyor.

[0002]

2. Description of the Related Art As a seeding device having the above-described structure, there is one disclosed in Japanese Patent Application Laid-Open No. 4-304806. In this conventional example, a reciprocating engaging claw is provided in a pot portion of a cell tray during seeding operation. It is configured to intermittently feed the seedling raising box (nursery raising device), and when the seedling raising box is stopped, the seeds from the seed drop opening are sent to the positions of the respective pots through a large number of chutes for seeding. There is.

[0003]

In this conventional example, the seed drop openings are formed in one row in a direction orthogonal to the conveying direction of the seedling raising device, and the chute part for guiding the seeds from the seed drop openings to the pot part is formed. By forming the lower end portion in two rows in the transport direction of the seedling raising device, seeds are supplied to the pot portions in two rows for each seeding operation, so that the efficiency can be improved.

However, since the position of the lower end of the chute is determined in this conventional example, for example, when seeding is carried out on a tray or a nursery box such as a tray or a nursery box in which a part of the upper surface is deformed and lifted up. Or, in the case where the cell tray is displaced to the upper side depending on the insertion posture, such as the one in which seeding is performed on the cell tray fitted inside the seedling raising box as in the conventional example, the lower end of the chute contacts the seeding position. There is room for improvement.

An object of the present invention is to solve the obstacle of transport of the nursery device without performing special operation or adjustment even for the deformed nursery device, to smoothly send the nursery device to seed from an appropriate level. The point is to reasonably configure the seeding device that can be used.

[0006]

The features of the present invention are, as described at the beginning, in a seeding device for sowing seeds at a predetermined interval along the feeding direction of the conveyor with respect to the floor soil surface of the nursery fed by the conveyor, This seeding device, the storage portion of the seed, a take-out portion for taking out the seeds from the storage portion in a row at a predetermined interval in a direction orthogonal to the feeding direction of the conveyor, and the seed from the take-out portion near the floor soil surface. Multiple tubes to guide,
Seed from this tube is configured with a guide having a delivery port formed at the predetermined intervals in a direction orthogonal to the feeding direction of the conveyor so as to send the seeds to the floor soil surface in rows, and the vertical position of this guide is free. It is provided with a level displacement allowance mechanism that allows displacement, and its action and effect are as follows.

[0007]

According to the above feature, at the time of sowing, the seeds taken out from the storage portion are sent to the guide through the tube, and are supplied in rows to the floor soil surface of the seedling raising device through the outlet of the guide. Will be things. Further, since this guide is configured to be level-displaceable by the level-displacement allowing mechanism, for example, even when performing seeding on a seedling-growing device such as a tray or a seedling-growing box which is deformed and a part of the upper surface is lifted, Since the guide is lifted upward by contact with this lifted part, it does not hinder the transport of the seedling raising device,
Further, the guide descends to a predetermined upper surface level portion of the seedling raising device, so that the seedling can be seeded on the floor soil surface from an appropriate level without being largely separated from the floor soil surface of the seedling raising device.

[0008]

[Effects of the Invention] Therefore, even when seeding a deformed plant or the like in which the upper surface of the nursery device is displaced upward from the expected level, it is appropriate to send the nursery device smoothly without any special adjustment. The seeding device was reasonably configured to allow seeding from different levels.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 4, a roller-type conveyor B for sending the seedling raising device A, a floor soil supply unit C for supplying the floor soil to the seedling raising device A sent by the conveyor B, and the seedling raising device A are supplied. The seeding section D for sowing seeds at a set interval in the feeding direction of the conveyor B, the soil cover supplying section E for supplying the soil cover to the upper surface of the floor soil on which the seeds are sprayed, and the water spraying method for the upper surface of the soil cover. The irrigation units F to be supplied are sequentially arranged in the feeding direction of the conveyor B to form 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 is fitted in the tray 2, and the tray 2 has eight pots 2A in the lateral direction and 16 pots 2A in the longitudinal direction which are recessed (see FIG. 9). The conveyor B is arranged in the floor soil supplying section C, is continuously driven by the first electric motor M1, the floor soil supplying section conveyor 3 is disposed in the seeding section D, and the freely rotatable seeding section conveyor 4 and soil covering supply are provided. Placed in part E, second
A cover soil supply section conveyor 5 driven by an electric motor M2,
The irrigation section conveyor 6 is disposed in the irrigation section F and is driven by the second electric motor.

In this seeding apparatus, the bed soil is continuously supplied from the bed soil supply mechanism 7 to the seedling raising device A that is sent to the bed soil supply section conveyor 3 that is continuously driven, and then a plurality of crushers are pressed. Roller 8 and a plurality of rotating brushes 9 are used to level the soil surface,
The floor soil at the position of the pot portion 2A of the tray 2 is recessed and formed by the mold-equipped roller 10, and the processing in the floor soil supply portion C is completed. Next, in the seeding section D, the seedling raising device A is sent in an intermittent motion pattern in which the pot portion 2A of the tray 2 is sent at a distance twice that of the pot portion 2A and is stopped for a predetermined time. The seeding mechanism 11 performs seeding every two rows, and the processing in the seeding section D is completed. Next, the seedling raising device A for which the seeding process has been completed,
The soil covering mechanism 12 supplies the soil covering from the soil covering mechanism 12 to the top surface of the floor soil with a uniform thickness while sending it to the soil-cover supplying portion conveyor 5 which is continuously driven, and finishes the processing in the soil-cover supplying portion E. The water is sprayed from the irrigation mechanism 13 onto the upper surface of the seedling raising device A sent by the irrigation unit conveyor 6 to end the treatment in the irrigation unit F, whereby the treatment in the seeding device is completed. There is.

As shown in FIGS. 2 and 3, the respective conveyors 3, 5 and 6 are the left and right frames 14 and 1 which form a frame.
4 is formed by forming a pair of rubber rollers 16 and 16 on a support shaft 15 supported by 4, and the floor soil supply section conveyor 3, the soil cover supply section conveyor 5, and the irrigation section conveyor 6 each have a support shaft 15
1 around the sprocket 17 provided at the end of the
8 is driven synchronously, and the power from the first and second electric motors M1 and M2 is applied to the support shaft 15 by the chain 1.
It is transmitted via 9.

As shown in FIGS. 4, 9 and 10, the seeding section conveyor 4 has a pair of rollers 16, 16 integrally formed on a support shaft 15 which is rotatably supported by the left and right frames 14, 14. In this seeding section D, the tray 2 is housed for the purpose of suppressing the disturbance of the posture of the seedling raising device A and the purpose of suppressing the movement due to the dynamic inertia when the action of the feeding force described later is released. A guide plate 20 that comes into contact with the side surface of the seedling raising box 1 and a brake mechanism G that comes into contact with the other side surface of the seedling raising box 1 to exert a braking force are provided. In addition, the brake mechanism G is a support plate 2 fixed to the frame 14.
1 has a cantilever-shaped braking piece 22 made of a spring plate and an adjusting screw 23 for determining the position of the free end side of the braking piece 22. The amount of protrusion can be changed to adjust the braking force.

As shown in FIGS. 8A, 8B, and 8C, a rod 24 having a posture parallel to the feeding direction of the seedling raising device A is supported on the guide plate 20 of the seeding section D via a support 25. And an engaging claw that is slidably supported in the axial direction by a bracket 26 and is swingable with respect to the rod 24 through a bracket 26 around a lateral axis, and the swing end side is biased downward by a spring. An intermediate member 28 that supports 27 and that is connected to the rod 24 and a rotating disk 29 are connected via an arm 30 to form a conveying means of the seeding mechanism 11. When the rod 24 makes one reciprocating operation by one rotation operation of the rotary disk 29, this conveying means engages the engaging claw 27 with the pot portion 2A of the tray 2 and sends the seedling raising device A by a distance of two pots. After that, the engaging claw 27 is released upward against the spring biasing force by the contact with the upper surface of the tray, and the operation is performed to restore the original position with the engaging claw 27 slidingly contacting the upper surface of the tray 2.
As shown in FIG. 5, in this carrying means, when the engaging claw 27 is restored after the seedling raising device A is fed, the tip of the engaging claw 27 and the pot to which the engaging claw 27 is next engaged. The feed stroke is set so that a gap H is formed between the opening and the opening edge of the portion 2A.

As shown in FIGS. 11 (a), 11 (b) and 12, the seed tray 31 as a storage portion arranged over the entire width of the left and right frames 14, and the seed S stored in the seed tray 31. Sucking blade 32 for picking up by suction by negative pressure, a guide member 33 as a picking portion to which seed S from this sucking blade 32 is supplied, and this guiding member 33
A plurality of flexible and flexible tubes 34 made of transparent resin for sending the seeds S from the seeds downward, and a guide 35 for sending the seeds S from the tubes 34 one by one into the pot portion 2A of the tray 2 of the nursery A. Then, the seeding means of the seeding mechanism 11 is configured. A vacuum pump 36 for generating a negative pressure is provided below the pedestal of the sowing section D, and an electric motor 37 for driving the conveying means and the sowing means is provided above the sowing section D (the drive system is detailed. (Not mentioned).

The suction blade 32 is provided on the left and right frame bodies 38.
1 is supported rotatably around a lateral axis X, and 16 suction holes 32A are formed at the tip thereof.
As shown in FIG. 1A, when the seed S is taken out, the suction blade 3 is set by setting the taking-out posture by rotating around the axis X.
By making the inside of the two suction holes 32A negative, one seed S is adsorbed to each of the suction holes 32A.
As shown in (b), at the time of discharging, the seed S is dropped and discharged by its own weight by setting the discharging posture by rotating about the axis X and increasing the pressure in the suction hole 32A to the atmospheric pressure.
Further, a mechanism (not shown) for rotating the suction blade 32 is provided outside the frame body 38 that supports the suction blade 32, and the suction path is formed coaxially with the suction hole 32A and the rotation axis. The vacuum pump 36 and the pipe 39 are communicated with each other through a suction tube 40 and a control valve (not shown) so that a negative pressure is applied to the pipe 39 communicating with the pipe 32B.

The guide member 33 is the suction blade 32.
16 openings 33 at the upper surface position corresponding to the suction holes 32A of
A is formed, the guide 35 is formed with two rows of eight outlets 35A in the lateral direction at the upper surface position corresponding to the pot portion 2A of the tray 2, and the lower surface of the guide 35 conveys the seedling raising device A. The sliding contact plates 35B formed by bending the both ends in the upward direction in a sled shape are fixed with screws, and two adjacent openings 33A of the guide member 33 and two guides 35 adjacent in the feeding direction of the seedling raising device A are provided. As shown in FIGS. 11 and 12, the delivery port 35A is communicated with the tube 34 having the same guide path length. Further, the upper end of a suspension rod 41 supporting the side portion of the guide 35 is inserted into a hole 38A vertically formed in the bent piece at the bottom of the frame body 38, and screwed to the suspension rod 41. The vertical position of the guide 35 is set by the lock nut 42.

Further, when the sliding contact plate 35B is brought into sliding contact with the upper surface of the tray 2 to exert a force for lifting the guide 35 upward, the suspension rod 41 is inserted through the hole 38A of the frame body 38. By displacing the guide 35 upward in this state, the upward displacement of the guide 35 is allowed, and this configuration is called a level displacement allowing mechanism. or,
Although not shown in the drawing, the guide 35 is suspended by adjusting the lock nut 42 so that the gap between the lower surface of the sliding contact plate 35B and the upper surface of the tray 2 during proper work becomes 0.2 to 0.3 mm. The level is set.

As shown in FIG. 6, the trailing end position of the floor soil supplying section conveyor 3 is arranged immediately below the typed roller 10, and the feeding force of the conveyor 3 is released when the seedling raising device A is conveyed. At this position, the seedling raising device A will stop once, and the position of the engaging claw 27 at the rear end position is determined so as to engage with the pot portion 2A at the tip position of the seedling raising device A at this position, and As shown in FIG. 7, the seeding treatment is completed, and the feeding force from the soil cover feeding section conveyor 5 acts on the tip of the seedling raising device A at the position where the engaging claw 27 comes into contact with the rear end position and is pushed out. The relative position of each is determined.

Due to such a constitution, the seeding section D
In (1), the engaging claw 27 is engaged with the pot portion 2A of the tray 2 to feed the seedling raising device A, and when the engagement is released, the movement due to the dynamic inertia is blocked by the braking force of the brake mechanism G, and the seedling raising device A is moved. While seeding while maintaining the relative position of the seeding position and the pot portion 2A to be stopped at an appropriate seeding position, the seedling raising device A is deformed and a part thereof is displaced upward, or Even if the seedling raising device A is of a type thicker than the expected thickness (dimension in the vertical direction), when it is transported to the seeding section D, the level displacement permitting mechanism allows the guide 35 to be lifted upward. As a result, the transportation of the seedling raising device A is not hindered. At the time of sowing, the suction blade 32 is set to the take-out posture to adsorb the seed S, and then the seed S is switched to the discharge posture to guide the seed S to the guide member 33.
The seeds S are released from the guide member 33 by the tubes 34 having the same length to drop and are guided to the guide 35 by the discharge to the opening 33A of the guide member 33 at the same timing from the delivery port 35A. The water is sent to the pot portion 2A at a proper speed at which the rebound is suppressed and by dropping from a level relatively close to the floor soil surface of the pot portion 2A.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, the guide may be configured to be supported in a suspended state via a spring or the like that applies an upward bias to the guide to facilitate the upward movement of the guide. It is also possible to divide the guide into a plurality of members in a direction orthogonal to the direction so that the respective guides can be independently moved up and down. Further, in the present invention, it is possible to configure the seedling raising device with only the tray or only the seedling raising box.

Further, according to the present invention, as shown in FIG. 13, a plurality of elongated holes 45A are formed in a plate-like member 45 arranged on the side of the pedestal constituting the seeding section D, and guides are provided for the elongated holes 45A. By inserting the pin 46 of 35, it is possible to allow the vertical movement of the guide 35 while maintaining the posture of the guide 35 by regulating the elongated hole 45A with respect to the pin 46.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration 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 cross-sectional view of the floor soil supply section conveyor

FIG. 3 is a vertical cross-sectional view of the soil cover supplying section conveyor and the irrigation section conveyor.

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

FIG. 5 is a vertical sectional side view showing the relative relationship with the engaging claws of the seedling raising device.

FIG. 6 is a side view showing an outline of a transfer structure of a seedling raising device from a bed soil supplying section to a sowing section.

FIG. 7 is a side view showing the outline of the transfer structure of the seedling raising device from the seeding part to the soil cover supplying part.

[Fig. 8] (a) is a vertical sectional side view showing the relative position with the seedling raising device at the position where the engaging claw is restored. (B) is a vertical sectional side view during feeding the seedling raising device with the engaging claw. Vertical side view immediately after sending the nursery device with engaging claws

FIG. 9 is a plan view showing the arrangement of a brake mechanism.

FIG. 10 is an enlarged sectional view of a brake mechanism.

FIG. 11 (a) is a vertical sectional side view of the seeding system in which the suction blade is set in the extraction posture, and (b) is a vertical sectional side view of the seeding system in which the suction blade is set in the discharge posture.

FIG. 12 is a vertical sectional view of a seeding part.

FIG. 13 is a partially enlarged cross-sectional view of a seeding part of another embodiment.

[Explanation of symbols]

 31 Storage Part 33 Extraction Part 34 Tube 35 Guide 35A Delivery Port A A Nursery Machine S Seed

Claims (1)

[Claims] 1. A seeding device for sowing seeds (S) on a floor soil surface of a seedling raising device (A) fed by a conveyor at a predetermined interval along the feeding direction of the conveyor, the seeding device being used for storing seeds. Part (31) and storage part (3
A take-out part (33) for taking out seeds (S) from 1) in a row at predetermined intervals in a direction orthogonal to the conveyor feeding direction;
A plurality of tubes (34) for guiding the seeds (S) from the take-out part (33) to the vicinity of the soil surface of the floor, and the seeds (S) from the tubes (34) are delivered to the soil surface of the floor in a row. And a guide (35) having a delivery port (35A) formed at a predetermined interval in a direction orthogonal to the conveyor feeding direction, and a level displacement allowing free displacement of the vertical position of the guide (35). Seeding device with permissive mechanism.