JPH08130924A - Sowing apparatus - Google Patents

Abstract

PURPOSE: To provide a sowing apparatus provided with conveyer, etc., allowing free movement of a nursery vessel to horizontal direction, capable of suppressing disturbance of posture of the nursery vessel and stopping the conveyer in proper sowing position and improved in sowing efficiency. CONSTITUTION: This sowing apparatus is equipped with a conveyer 4 capable of permitting free movement of a nursery vessel A at the position of a sowing part to horizontal direction, a carrying means being brought into contact with the nursery vessel at this position and intermittently moving the nursery vessel A at a set interval and a brake mechanism G being brought into contact with the nursery vessel A moving onto the conveyer at this position and exerting braking force. Furthermore, the conveyer 4 is preferably constituted of plural rollers 16 freely rotating by shaft center perpendicular to feed direction of the nursery vessel A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed soil supply section for supplying bed soil to a horizontally-grown seedling raising device, and to the bed soil supplied to the seedling raising device in the feeding direction of the seedling raising device at set intervals. The present invention relates to an improvement of a seeding device including a seeding section for seeding seeds and a soil cover supplying section for supplying soil to the upper surface of the bed soil on which seeds are seeded.

[0002]

2. Description of the Related Art As a seeding device having the above-mentioned structure, there is one shown in Japanese Patent Application Laid-Open No. 4-304806. In this conventional example, a seedling raising device is movably supported by a guide rail at a seeding position. At the same time, the reciprocating engaging claws are engaged with the pot portion of the cell tray, and the force from the engaging claws feeds the seedling-growing box (seed-growing device) at predetermined intervals.

[0003]

However, like the conventional example, the nursery device is movably supported with respect to the guide rail,
With a structure in which the seedling raising device is intermittently moved by a predetermined interval by the engagement of the engaging claws, the seedling raising box can be freely moved when the engagement of the engaging claws is released, and the seeding When performing, the bed soil supplied to the seedlings is heavy and the dynamic inertia is inevitably large.Therefore, immediately after the engaging claws are disengaged, an overshoot is likely to occur due to the action of the dynamic inertia. There is room for improvement in terms of sowing in suitable positions.

Further, the conventional example has a structure in which the seedling raising device is allowed to move by the sliding of the guide rails, so that the seedling raising box can be moved in any of the horizontal directions, and the action of the dynamic inertia described above or Due to the state of the bottom surface of the nursery device, the posture of the nursery device in plan view may be disturbed, and there is room for improvement in terms of seeding at an appropriate position.

An object of the present invention is to provide a seeding device which stops a nursery box at a desired position and enables seeding to an appropriate position, and a seeding box which suppresses disturbance of the posture of the nursery box to an appropriate position. The reason is that the seeding device that enables the above is reasonably configured.

[0006]

The features of the present invention (Claim 1) are, as described at the beginning, in a sowing apparatus provided with a floor soil supply unit, a seeding unit, and a soil cover supply unit, the position of the seeding unit. With a conveyor that allows the horizontal movement of the seedling raising device of, the transporting means for intermittently moving the seedling raising device in contact with the seedling raising device at this position at the set interval,
A braking mechanism is provided which comes into contact with the seedling raising device moving on the conveyor at this position to exert a braking force, and its action and effect are as follows.

[0007]

According to the above-mentioned characteristic (claim 1), the moving force from the drive mechanism intermittently acts on the seedling raising device on the conveyor which allows free movement in the horizontal direction at the time of sowing. It moves only while the moving force acts, and when the moving force is released, it stops at that position by the braking force of the brake mechanism. In other words, the seedling raising device is in a situation where it can be freely moved by the conveyor, and when the movement force of the drive mechanism is released, it is easy to move due to the dynamic inertia. , It can prevent the overshoot of the nursery.

Further, according to the second aspect, when the seedling raising device is moved, it can be lightly moved by free rotation of the rollers constituting the conveyor, and the movement of the seedling raising device in the direction orthogonal to the feeding direction causes a frictional force. Big and difficult,
It is possible to suppress the disturbance of the posture of the seedling raising device in a plan view and to maintain the seedling raising device in a predetermined posture.

[0009]

Therefore, a seeding device (claim 1) for stopping the seedling raising box at a desired position to allow seeding to an appropriate position, and suppressing the disturbance of the posture of the seedling raising box, thereby achieving an appropriate position. The seeding device (claim 2) that enables seeding of the seeds was reasonably constructed.

[0010]

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 supply mechanism 7 continuously supplies the bed soil to the seedling raising apparatus A which is sent to the bed soil supply section conveyor 3 which is continuously driven. 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.
A pair of rollers 16 and 1 with respect to a support shaft 15 supported by
6, the floor soil supply section conveyor 3, the soil cover supply section conveyor 5, and the irrigation section conveyor 6 are each driven synchronously by a chain 18 wound around a sprocket 17 provided at the end of the support shaft 15, and First and second with respect to the support shaft 15.
Power from the electric motors M1 and M2 is transmitted through the chain 19.

As shown in FIGS. 4, 9 and 10, the seeding section conveyor 4 has a pair of rollers 16 and 16 integrally formed on a support shaft 15 which is rotatably supported by the left and right frames 14 and 14, respectively. 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. 8 (a), 8 (b) and 8 (c), 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, which supports 27 and 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. This transport means is the rod 24 by one rotation operation of the rotating disk 29.
1 reciprocating operation, the engaging claw 27 is connected to the pot portion 2 of the tray 2.
A state in which after engaging with A and feeding the seedling raising device A by a distance corresponding to two pots, the engaging claw 27 is allowed to escape upward against the biasing force of the spring, and the engaging claw 27 slidably contacts the upper surface of the tray 2. To restore the original position. As shown in FIG. 5, in this conveying means, the tip of the engaging claw 27 and the pot with which the engaging claw 27 is next engaged when the engaging claw 27 is restored after feeding the seedling raising device A. The feeding operation is set so that the gap H is formed between the opening of the portion 2A.

As shown in FIGS. 11 (a), 11 (b) and 12, the seed tray 31 arranged over the entire width of the left and right frames 14 and the seed S stored in the seed tray 31.
And a guide member 33 to which the seeds S are supplied from the suction blade 32.
And a plurality of tubes 34 for feeding the seeds S from the guide member 33 downward, and a guide 35 for feeding the seeds S from the tubes 34 one by one to the pot portion 2A of the tray 2 of the seedling raising device A. It constitutes the seeding means of the seeding mechanism 11. A vacuum pump 36 for generating a negative pressure is provided below the pedestal of the seeding section D, and an electric motor 37 for driving the conveying means and the seeding means is provided above the seeding section D.

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 around 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. Two sliding openings 35A formed by bending 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 adjacent guides 35 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 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. In this state, the guide 3 is displaced upward.
5 is configured to allow upward displacement, and
Although not shown in the drawing, by adjusting the screwing position of the lock nut 42, a guide is provided so that the gap between the lower surface of the sliding contact plate 35B and the upper surface of the tray 2 is 0.1 to 0.3 mm during proper work. 35 hanging levels are set.

As shown in FIG. 6, the trailing end position of the floor soil supply section conveyor 3 is arranged immediately below the mold 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.

With this structure, 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. The seedling apparatus A is stopped at an appropriate seeding position to perform seeding, and the moving direction of the seedling growing apparatus A is determined by the roller 16 that freely rotates while applying a feeding force to the side portion of the seedling growing apparatus A during this movement. By controlling the brake mechanism G and the guide plate 20, it is possible to suppress the disturbance of the posture of the seedling raising device A in a plan view and appropriately maintain the relative position between the seeding position and the pot portion 2A. Further, at the time of this 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 releasing posture.
By discharging the seeds S into the opening 33A of the guide member 33, the seeds S of each grain are introduced from the guide member 33 into the tubes 3 of equal length
It is guided to the guide 35 via 4 and is sent to each pot portion 2A at the same timing.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, the seedling raising device can be configured by only the tray, and the brake mechanism can also be configured by sandwiching the seedling raising device in the vertical direction.

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.

[Explanation of symbols]

 4 Conveyor 16 Roller A Nursery C C Bed Soil Supply Section D Sowing Section E Cover Soil Supply Section G Brake Mechanism S Seed

Claims (2)

[Claims] 1. A bed soil supply section (C) for supplying bed soil to a seedling raising device (A) sent horizontally, and a bed raising device (A) for feeding bed soil to the seedling raising device (A). A seeding device comprising: a seeding part (D) for sowing seeds (S) at a set interval in the feeding direction, and a soil cover supplying part (E) for supplying soil to the upper surface of the bed soil on which the seeds (S) are sown, The seedling raising device (A) is provided with a conveyor (4) that allows the seedling raising device (A) at the position of the sowing section (D) to move freely in the horizontal direction, and the seedling raising device (A) is brought into contact with the seedling raising device (A) at this position. A seeding device comprising a transporting means for intermittently moving the seedlings at the set interval, and a brake mechanism (G) for applying a braking force to the seedling raising device (A) moving on the conveyor at this position. 2. The seeding device according to claim 1, wherein the conveyor (4) is composed of a plurality of rollers (16) which freely rotate around an axis centered in a posture orthogonal to the feeding direction of the seedling raising device (A).