JP2546291Y2 - Automatic nursery - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic seedling transfer device for a two-stage type seedling stand having a spare seedling stand on a seedling stand.

[0002]

2. Description of the Related Art A seedling is configured so as to be switchable between a holding posture for preventing a preliminary seedling from sliding out and an inclined posture for displacing the end of the seedling on the delivery side downward so that the preliminary seedling is slid out. The one provided above the mounting table is known from Japanese Patent Application Laid-Open No. 2-65710.

[0003]

[Problems to be Solved by the Invention] In the two-stage seedling mount having the spare seedling mount on the seedling mount as described above, when the seedling mat on the seedling mount is reduced to the seedling splicing sensor position, the seedling is mounted by the solenoid. The stopper of the spare seedling stand at the top of the stand comes off, and the spare seedling stand changes its inclination angle and falls under its own weight. However, the falling speed is high, and seedling collapse is likely to occur. In addition, the fall of the seedling mat causes a compression phenomenon, and the number of seedlings varies. Therefore, an object of the present invention is to provide an automatic seedling splicing device capable of controlling the fall of a spare seedling stand.

[0004]

SUMMARY OF THE INVENTION The present invention provides the following automatic seedling transfer apparatus for achieving the above object. That is, the spare seedling stand configured to be switchable between the holding posture for preventing the seedling of the spare seedling from sliding out and the inclined posture for displacing the end of the seedling on the sending side downward to send the spare seedling by sliding. An automatic seedling splicing device, wherein a displacement speed control device to a tilted posture is provided at an upper position.

[0005]

When the seedling mat on the seedling mounting table is reduced to the position of the seedling splicing sensor, the displacement speed control devices such as the electric cylinder and the hydraulic cylinder work to prevent the seedling from collapsing. Further, the spare seedling stand can be dropped at a speed at which the compression phenomenon of the seedling mat does not occur.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. First, a two-stage type seedling table having a spare seedling table above the seedling table will be described. FIG. 3 shows a rice transplanter equipped with a fertilizer apparatus. As the fertilizer apparatus, a hopper 1, a feeding mechanism 2,
A transmission case 5 consisting of a guide hose 3 and a groove generator 4
Case 6 to which the power is transmitted from and two planting arms 7 arranged in pairs at both ends of the chain case 6
Is mounted on the float 9 together with the fertilizer application device. Reference numeral 10 denotes a seedling mounting table, on which a spare seedling table 11 that moves up and down around a support shaft 12 of a stay 13 is provided. Reference numeral 14 denotes a vertical feed belt provided on the seedling mounting table 10, and the spare seedling stand 11 is locked by the claws 17a of the electromagnetic solenoid 17, and is maintained in a holding posture for preventing the spare seedlings from sliding out. Then, the seedling remaining amount sensor 15 electrically detects that the remaining amount of the mat seedling placed on the seedling mounting table 10 has reached a predetermined amount or less, and detects the electromagnetic solenoid 1
7 to release the lock of the spare seedling stand 11 by the claw 17a.

[0007] According to the above, the spare seedlings of the spare seedling stand fall under their own weight with changing the inclination angle at the time of automatic splicing. However, since the falling speed is high, the seedlings are likely to collapse. In addition, a compression phenomenon of the seedling mat occurs, and the number of seedlings varies. Therefore, in the present invention, a device for controlling the displacement speed to the inclined posture is provided. That is, in FIG. 1, reference numeral 10 denotes a seedling mounting table, and 11 denotes a spare seedling table, which moves up and down around the support shaft 12 of the stay 13. 1
Reference numeral 5 denotes a seedling splicing sensor provided on the seedling mounting table 10. In the present invention, in addition to the above, an electric cylinder 17 is supported on the seedling mounting table 10 via a support 16, and there is a spare seedling support member 19 which operates by a rod 18.
A hydraulic cylinder may be used instead of the electric cylinder 17 described above. FIG. 2 shows a state where the seedling splicing sensor 15 and the electric cylinder 17 are connected from the power source 20 via the main switch 21.

Since the present invention is configured as described above, when the seedling mat of the seedling mounting table 10 is reduced to the position of the seedling splicing sensor 15, the electric cylinder 17 is operated based on the connection circuit of FIG. At 19, the seedling stand 11 is supported, the falling speed is controlled, the inclination angle is changed, and seedling connection is performed. In addition, when the spare seedlings in the spare seedlings run out, the spare seedlings 11 may be configured to be pushed up by another spring using a cylinder as described above in order to automatically return the spare seedlings.

[0009]

According to the present invention, since the apparatus for controlling the displacement speed of the spare seedling stand to the inclined posture is provided, it is possible to prevent the seedling mat from collapsing during automatic seedling connection. Also, since the seedling mat is not compressed, the number of planted seeds is stabilized. Further, by setting the control device to also serve as the return device, it is easy to reset the spare seedling stand.

[Brief description of the drawings]

FIG. 1 is a front view of the present invention device.

FIG. 2 is an electric circuit of the present invention.

FIG. 3 is a front view of a conventional rice transplanter.

[Explanation of symbols]

 Reference Signs List 10 seedling rest 11 spare seedling stand 15 seedling connection sensor 17 electric cylinder 19 spare seedling stand support member

Claims (1)

(57) [Scope of request for utility model registration] 1. A spare seedling stand configured to be switchable between a holding posture for preventing the spare seedling from sliding out and an inclined posture for sliding the spare seedling by displacing an end on the delivery side of the seedling downward. An automatic seedling splicing device provided above a mounting table, wherein a displacement speed control device for inclining posture is provided.