JPH10108550A - Automatic seedling box transfer device after seeding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent mud stuck to a seedling box back surface generated at the time of transfer from being dropped at the point of time of performing watering at the time of the transfer in a device for taking out seedling boxes after seeding for which bed soil is filled in a seedling box, watering is performed after seeding, many seedling boxes are piled up and sprouting is performed from an upper stage one by one, carrying them and transferring them on a shelf. SOLUTION: A seedling box transfer conveyor 10 in this transfer device 1 for picking up the seedling box 2a positioned at the highest stage of a seedling box group for which the seedling boxes 2 after seeding is performed are turned to a piled-up state and transferring it to the seedling box transfer conveyor 10 one by one is constituted of a rotary transfer roller 12 born in a horizontal direction by disposing a prescribed clearance in a vertical transfer direction. A watering device 16 for performing the watering from an upper part in the middle of the transfer of the seedling box transfer conveyor 10 is provided and a water discharge tank 17 is disposed on the lower side of the seedling box transfer conveyor 10. The transfer device 1 and the water discharge tank 17 provided on the lower part of the seedling box transfer conveyor are separated with a prescribed interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic transshipment device for seedling boxes after sowing.

[0002]

2. Description of the Related Art Conventionally, there has been a technique as disclosed in Japanese Utility Model Laid-Open No. 7-157088. Particularly, in this publication, as shown in FIG. 5, the seedling boxes at the uppermost stage of the seedling box group in which the seedling boxes after sowing are stacked are picked up one by one and placed on the seedling box transfer conveyor. There has been a seedling box transfer apparatus in which the seedling box transfer conveyor in the changing transfer apparatus is constituted by a rotary transfer roller bearing a predetermined gap in the vertical transfer direction and bearing in the horizontal direction. An irrigation device is provided in the middle of the transfer of the transfer conveyor, and a drainage tank as a water receiving gutter is configured. However, this tank was arranged on the entire surface from the start end to the rear end of the transfer conveyor.

[0003]

In the prior art, when it is lifted by a loading mechanism and transported to a conveyor side,
Since the mud that falls in the initial stage is received by the drain tank, the mud mixed with the floor soil and water that falls into the drain tank located at the lower part of the start of this conveyor is dropped and received. In addition to accumulating and giving a rotational resistance to the roller, there is a problem that a transfer failure occurs.

[0004]

The present invention employs the following technical means in order to solve the above-mentioned problems. That is, the seedling boxes in the transshipment device 1 in which the seedling boxes 2a positioned at the uppermost stage of the seedling box group in which the seedling boxes 2 after being sown are stacked are picked up one by one and placed on the seedling box transfer conveyor 10. The transfer conveyor 10 is constituted by a rotary transfer roller 12 which is provided with a predetermined gap in the vertical transfer direction and is supported in the horizontal direction, and an irrigation device 16 for irrigating the seedling box transfer conveyor 10 from the upper part of the transfer during the transfer is provided. A drainage tank is arranged below the seedling box transfer conveyor 10, and the transfer device 1 and a drainage tank 17 provided below the seedling box transfer conveyor are separated at a predetermined interval. A seedling box automatic transshipment device after sowing was used.

[0005]

An embodiment of the present invention will be described in detail with reference to the drawings. 1 is the loading group of the seedling box 2 after the seeding operation is completed.
An air-cylinder device 3 which is a transshipment device for picking up the top seedling box 2a and transferring it in the vertical direction (rightward on the paper).
An electric cylinder 5 for up and down is provided on a piston rod 3a through an attachment frame 4, and a chuck frame 7 is attached to the upper and lower cylinder rod 5a via a joint 6, and seedlings are provided before and after the chuck frame. The front and rear gripping claws 9a and 9b operated by an electromagnetic cylinder-8 for gripping the box 2 are provided.
The seedling box 2 on which the front and rear claws 9a and 9b are loaded.
When the upper seedling box 2a is grasped, the chuck frame 7 is lifted by the electric cylinder 5, and thereafter the air cylinder device 3 is operated to transfer the chuck frame mounting frame 4 to the rear, rightward on the paper, and the Electromagnetic cylinder-8 at the end of transfer
Is operated to open the claws 9a and 9b and drop the seedling box 2a.

[0006] Numeral 10 is a seedling box transfer conveyor, which is located on the rear side of the transfer device 1 and has a starting end (a).
Is caught by the claws 9a and 9b, and is transported rearward and released at a lower portion of the position where the rear end is located, and the terminal end portion is located at an appropriate position behind and away from this position. The structure of the conveyor 10 includes a left and right frame 11 supported by legs and arranged at a predetermined distance between the left and right sides.
The transfer roller 12 is spaced between the front and rear rollers 11a and 11b by a predetermined distance and bearings, and a sprocket 1 is mounted on one side of the roller shaft 12a.
3 attached and the chain 1 rotated and driven by the motor 14
5, the seedling box 2 received by the rollers 12 is transported rearward at a constant speed.

Reference numeral 16 denotes an irrigation device, which is provided with an irrigation nozzle 16a at the upper part of the seedling box transfer conveyor 10 during transfer.
At this position, the seedling box 2 being transferred is irrigated. The nozzle 16a has a structure in which a large number of injection ports are attached in the left-right lateral direction to a water reservoir pipe extending in the left-right direction. Reference numeral 17 denotes a drainage tank, which is formed in a gutter shape so that the front and rear center portions gradually become deeper from the front and rear ends, and this tank 17 is disposed below the seedling box conveyor 10. And
The water irrigated by the irrigating device 16 receives muddy water leaking from the seedling box 2 and flows to the center in the front and rear direction, and the drainage pipe 18 connected to the narrowing portion in the center portion appropriately flows to the drainage channel.

The starting end of the drainage tank 17 is formed at a position excluding the starting end (a) of the seedling box transfer conveyor 10, and the transfer side end of the transfer device 1 for catching and transferring the seedling box 2 backward. At the start end (a) of the seedling box transfer conveyor 10, which is the end position, a part L that is partially separated without providing the drainage tank 17 is provided. The loaded seedling box 2 after sowing is mounted on an intermittent upper moving mounting table 19, and when the upper seedling box 2a is picked up by the transfer device 1, the seedlings before being picked up are placed. The top of the next seedling box 2 is moved upward to the position of the box 2a.
As an example of the upward moving means, a mounting table is generally mounted on a vertically wound chain driven by a motor whose rotation and stop are repeated at regular intervals. It is.

The operation of the above example will be described. The seedling box 2a located at the top of the seedling boxes 2, 2...
And is transferred by the air-cylinder device 3 to the rear side, which is the right side of the paper, and the seedling box transfer conveyor 10 is provided at the transfer end.
At the start end (a). Then, since the conveyor roll is rotating, the seedling box 2 received on the conveyor is transferred rearward. The water is then irrigated by the irrigating device 16 during the transfer. The extra water irrigated by the watering device 16 contains mud on the floor soil in the seedling box 2 and falls from the roller gap of the seedling box transfer conveyor 10 as muddy water. At this time, since the drainage tank 17 is provided, the muddy water is drained by the drainage tank 17 and is not scattered on the floor surface, so that the floor surface is kept clean.

The starting end of the drain tank 17 is
Since the transfer conveyor 10 is not provided at the starting end (a), the starting claw 9a of the transfer device 1 is provided at the starting end (a).
The seedling box 2 grasped in 9b falls and is received, and the soil attached to the bottom surface of the seedling box is separated and falls by the impact. However, since the drainage tank 17 is missing in this portion, the inside of the drainage tank 17 is Does not enter the soil, and falls downward from the inner space L of the drain tank 17. By arranging an appropriate container such as an empty seedling box in the falling portion, mud clogging of the drainage tank 17 is eliminated, and this soil receiving container need only be replaced occasionally.

A sowing machine will be described in which a pot container during intermittent transport of vegetable seeds is sown in each pot of a seedling raising device arranged at a predetermined pitch in the left-right direction and the front-rear direction. This type of sowing machine has a detector 21a, which detects whether or not there is a pot container to be transferred on the left and right lateral end sides of the transfer conveyer 20, with the floor soil packed in a pot. Two pieces 21b are provided at intervals of the pitch P1 of the pot containers 23 in the transfer direction. The embodiments of the detectors 21a and 21b are reflection-type phototube detectors. The detector emits a signal when irradiated light strikes the pot container 23 and receives light. It has become.

The operation of the transfer conveyor 20 is intermittently operated by signals from the detectors 21a and 21b. That is, the transfer conveyor 20 comprises a transfer belt rotated and driven by a drive motor M, and the detector 21
The pot containers 23 to be transferred are arranged in the horizontal direction at a predetermined pitch P2 in the horizontal direction of the position where “a” is arranged. The motor M is rotated and transferred by the distance of the pitch P1 in the transfer direction, stopped by the motor M, and intermittently transferred so as to be driven again after stopping for a predetermined time. A number of floor soil hole forming tools 24, 24,... Corresponding to the number of the pot containers 23 arranged in the left-right direction are provided, and all the hole forming tools 24 arranged at a predetermined pitch P2 on the left and right sides are arranged on the left and right sides. Are formed by protrusions having a conical bottom surface which move up and down so as to press the floor soil (b) in one row of all the pot containers 23 lined up from above to form a hole (c). This operation is performed when the transfer conveyor 20 stops. Reference numeral 25 denotes an electromagnetic cylinder for moving the hole forming tool 24 up and down.

In addition, on the left and right sides of the position where the detector 21b is arranged, the seeding tools of the number corresponding to the number of the pot containers 23 in which the transferred pot containers 23 are arranged at a predetermined pitch P2 in the horizontal direction. 26, the hole forming tool 24 is provided.
The seeds are sown in the hole (c) opened by the slab. The seeding tool 26 is provided with the seeding nozzle 2 at the lower end.
7 and a seed receiving hopper-2
The seed S is supplied and sown in the hopper 29 by a seed adsorber 31 that intermittently vacuum-adsorbs and feeds the seeds S in the seed tank 30 one by one into the hopper -29. Is configured. This sowing operation is also performed when the transfer conveyor 20 is stopped.

The seed adsorber 31 is configured to adsorb the seeds S by providing a small-diameter suction hole at the lower end of a suction pipe 34 connected to a vacuum pump 33. The suction pipe 34 is provided with a crank mechanism 35. , The suction hole swings between the seed tank 30 and the seed receiving hopper 29, and when it is located at the seed receiving hopper 29, the suction state is released and the seed S is released.

Reference numeral 36 denotes a seed supply tank that automatically supplies the seed tank 30 to the seed tank 30 when the amount of seed is reduced. The operation control of the electromagnetic cylinder 25 and the motor M is performed by detection of the detectors 21a and 21b, and the control circuit is a microcomputer circuit. That is, when the detector 21a detects the pot container 23, a motor for driving the transfer conveyor 20 is used.
Data M is temporarily stopped. During this stop, the electromagnetic cylinder-25
Works, and the hole forming tool 24 moves up and down to make a hole (c) in the floor soil (b) packed in the pot container 23. When the detector 21b detects the pot container 23, the motor M for driving the transfer conveyor 20 is temporarily stopped, and during the stop, the seeding nozzle 27 of the seeding tool 26 seeds in the hole (c). That is, the crank mechanism 35 is activated to operate the seed adsorber 31.
Is controlled so that only one seed S is adsorbed from the seed tank 30 and released into the seed receiving hopper 29 for seeding.

As described above, according to this seeding apparatus, the seeding tools 2 in the same horizontal row as the floor clay hole forming tools 24 arranged in the horizontal single row.
6 is independently controlled by the detectors 21a and 21b that detect the pot containers 23 transferred by the transfer conveyor 20, and is pierced and seeded. Even if the pitch between the pot container 23 and the pot container 23 is sent in a state where the pitch between the pot containers 23 is larger than the predetermined pitch P2 at the joint portion before and after on the conveyor of the seedling raising device, the hole is surely fitted accurately. Opening and sowing are possible.

[0017]

According to the present invention, since no drainage tank is disposed below the starting end of the seedling box transfer conveyor located behind the seedling box transfer apparatus, the bottom of the seedling box generated during the transfer of seedling boxes is transferred. The clod attached to the soil does not enter the drainage tank,
Mud clogging of the drainage tank can be eliminated.

[Brief description of the drawings]

FIG. 1 is a side view

FIG. 2 is a side view of a main part.

FIG. 3 shows another example of a sowing apparatus.

FIG. 4 is a side view of a main part of FIG.

FIG. 5 is a side view of a main part in which a part of FIG. 3 is sectioned;

6 is a front sectional view of a main part of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transshipment apparatus 2 Seedling box 2a The topmost seedling box 10 Seedling box transfer conveyor 12 Rotary transfer roller 16 Irrigation device 17 Drain tank

Claims (1)

[Claims] 1. A transfer device 1 for picking up one seedling box 2a positioned at the uppermost position of a seedling box group in which seedling boxes 2 after being sown are stacked, and placing the seedling boxes 2a on a seedling box transfer conveyor 10.
The seedling box transfer conveyer 10 is constituted by a rotary transfer roller 12 which is provided with a predetermined gap in the vertical transfer direction and is supported in the horizontal direction. And a drainage tank is arranged below the seedling box transfer conveyor 10, and the transfer device 1 and a drainage tank 17 provided below the seedling box transfer conveyor are separated at a predetermined interval. An automatic transshipment device for seedling boxes after sowing.