JP2560441B2 - Transplanter seedling supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Purpose of the invention [Industrial field of application] The present invention relates to a seedling supply device for a seedling transplanter such as a rice transplanter.

[Prior Art] A seedling platform that reciprocates left and right with a seedling group such as seedlings and mat-shaped seedlings grown by a nursery device in which seedling pots are arranged vertically and horizontally, and the left and right strokes of the seedling platform. When the end of the seedlings is reached, a seedling feeding device is provided for sequentially transferring the seedling aggregates on the seedling placing table to the predetermined seedling take-out port side by line, and the seedling aggregates in the front row are sequentially arranged. There is a seedling supply device such as a rice transplanter that is configured to supply one plant at a time to the seedling take-out port and to transplant it with a plant.

[Problems to be Solved by the Invention] In the conventional device, when the remaining amount of seedlings on the seedling mounting table becomes small, the operation is automatically stopped, or a buzzer or the like notifies the operator of this. Yes, I was trying to replenish the seedlings when notified of this. As a method for detecting that the remaining amount of the seedling is low, for example, JP-A-60-
As described in Japanese Patent No. 262512, there is one provided with a sensing piece that is urged to project above the mounting surface when the seedling disappears, but seedlings are supplied only by sensing of this type of sensing piece. With this method, when the seedling remains low to the point where the sensing piece is about to operate, if the seedling floats up or slides down due to vibration during the planting work, the sensing piece will protrude and give an alarm. Therefore, as shown in FIG. 5, the seedlings are stopped in the middle of the left and right reciprocating strokes to replenish the seedlings, and the space in the front row is affected by the pressure during the replenishment.
51 had a problem that the upper seedlings could collapse.

B Configuration of the Invention [Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration.

That is, the seedling supply device according to the present invention is a seedling mounting table on which an aggregate of transplanting seedlings is placed and reciprocates left and right, and when the seedling mounting table reaches the end of the left and right stroke, the seedlings on the seedling mounting table. 1 for the aggregate
In a seedling feeding device of a transplanter equipped with a seedling feeding device that sequentially transfers to the side of a predetermined seedling taking out row by row, a seedling reduction sensor for detecting that the remaining amount of seedlings has become a predetermined amount or less, and A sensor that detects when the seedling table is moving to the end position of the left and right strokes where the seedling feeding device operates, and an alarm device that issues an alarm when both the sensor and the seedling reduction sensor are in the detection state. It is characterized by having and.

[Working] An alarm is issued when the remaining amount of seedlings in the seedling aggregate is less than or equal to a predetermined amount and the seedling mounting table is moving to the left and right stroke end positions where the seedling feeding device operates. If the seedling stand is stopped and the seedlings are replenished when this alarm is issued, the front end of the seedlings will not collapse or be crushed.

[Embodiment] FIG. 1 and the following figures show a riding type rice transplanter as an example of the present invention. In this rice transplanter 1, a parallel link device 3 provided at a rear portion of a towing vehicle 2 is equipped with a rice transplanter 5. The rice transplanter 5 slides on the field scene as the towing vehicle 2 advances.

The rice transplanter 5 has a total of 4 sets, each of which has two pairs in a pair of branch cases 11 and 11 provided by branching from the transmission case 10 to the rear.
A set of planting devices 12, ... Is provided. This planting device 12
Is equipped with a planting rod 15 provided with a planting claw 14 at its tip, and the planting rod moves up and down while drawing a predetermined locus, and divides the seedlings supplied to the seedling take-out port described later into individual plants. It is designed to be held and planted in a field. Below the branch cases 11 and 11, there are a center float 16 and side floats 17 and 17 for holding the rice transplanter device body on the farm scene.
Is provided.

As seedlings of this rice transplanter, pot seedlings 50 grown by a seedling raising device in which pots made of a material that corrodes in the soil such as paper are arranged vertically and horizontally are used. And this seedling planting device 12
The seedling feeding device for sequentially feeding the seedlings is composed of a seedling placing table 20, a seedling feeding device 21, a receiving plate 22, and the like. The seedling mounting table 20 is a table that is divided into four seedling mounting portions 20a, ..., Each of which has an upper surface equally divided, and is provided above the transmission case 10 so that the front side is inclined so that the front side is higher. The seedling mounting table 20 is supported by a support frame 24 and a rail 25 so as to be slidable left and right, and reciprocates left and right in synchronization with the operation of the planting device 12 by a lateral movement device incorporated in the transmission case 10. It is like this. Seedling feeder 21
An annular belt 27 is stretched around a pair of rollers 26, 26 ′, and is provided on the bottom bottom surface of the seedling stand 20. When the seedling mounting table 20 moves to the end of the left and right strokes, the ratchet lever 29 fixed to the shaft of the drive roller 26 is rotated in a predetermined direction by the seedling feeding arm 30, and the belt 27 operates to set the seedling mounting table on the seedling mounting table. The group of seedlings is transferred downward one row at a time. The seedling feeding device is not limited to the belt conveyor type like the device of the embodiment, but another type such as a claw-shaped type for circulating the seedlings may be adopted. The receiving plate 22 is fixedly provided on the lower end side of the seedling placing table 20, and the seedling taking-out ports 32, ... Are formed at appropriate positions corresponding to the respective seedling placing portions 20a ,.

This rice transplanter 1 is provided with an alarm device for notifying that the remaining amount of seedlings on the seedling table is low. The alarm device includes a seedling reduction sensor 35 that detects that the seedlings on the seedling mounting portion 20a have become less than or equal to a predetermined amount, and a seedling feeding sensor 36 that detects that the operation of the seedling feeding device 21 is completed. The buzzer 37 attached to the upper part of the seedling mounting table 20 emits an alarm sound based on the detection results of 36 and 36. Seedling reduction sensor
35 is provided at a position slightly above the seedling feeding device 21, and the switch is turned on when there is no seedling in that portion. Further, the seedling feeding sensor 36 is attached to the seedling feeding rod 38 which moves up and down in conjunction with the ratchet lever 29, and when the seedling feeding rod moves, the switch 36a is turned on. And both sensors 3
When both 5,36 switches are turned on, the buzzer sounds and the planting work section is stopped.
The alarm device may only activate alarm means such as a buzzer or a lamp in response to an alarm signal, or may stop the planting work unit.

To explain the actual work, the seedling reduction sensor 35 switches on when the number of seedlings on the seedling mounting table 20 falls below a predetermined amount, but when the seedling mounting table 20 is moving left and right, the seedling mounting table 20 moves as it is. To do. When the seedling stand 20 reaches the end of the left and right strokes,
The seedling feeding device 21 operates, and when the operation is completed, the seedling feeding sensor 36 is turned on and the work is stopped. At this point, as shown in FIG.
There is no space in the front row of the seedling mounting portion 20a and a predetermined number of seedlings are juxtaposed. Therefore, even if the seedlings are newly supplied to the seedling mounting portion 20a, the seedlings on the upper side of the space portion may collapse due to the pressure at the time of supply,
Accidents in which the seedlings below are crushed by the pressure during replenishment have been prevented.

Note that seedlings other than pot seedlings may be used as the seedlings for transplantation.

[Effects of the Invention] As described above, the seedling supply device according to the present invention is
Even if it is detected that the remaining amount of seedlings in the aggregate is less than a predetermined amount, the alarm signal will be issued after the seedling platform has moved to the end of the left and right strokes. The seedlings were prevented from collapsing and crushing in, and good seedlings could always be supplied to the planting device.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a riding type rice transplanter which is an example of the present invention.
FIG. 2 is a plan view of the same, FIG. 3 is a side view of an essential part thereof, and FIG.
Drawing and Drawing 5 are explanatory views showing the state of the seedling stand. 1 ... Passive rice transplanter, 2 ... Trucking vehicle, 3 ... Parallel link device, 5 ... Rice transplanter, 12 ... Planting device, 20 ... Seedling platform, 21 ... Seedling feeding device, 22 ... … Support plate, 30 …… Seedling feeding device, 32 …… Seedling take-out port, 35… Seedling reduction sensor, 36… Seedling feeding sensor, 37… Buzzer.

Claims (1)

(57) [Claims] 1. A seedling placing table on which a set of seedlings for transplantation is placed and which reciprocates left and right, and when the seedling placing table reaches the end portions of the left and right strokes, one row of seedling aggregates on the seedling placing table. In a seedling feeding device of a transplanter equipped with a seedling feeding device for sequentially transferring to a predetermined seedling take-out port side, a seedling reduction sensor for detecting that the remaining amount of seedlings is below a predetermined amount, and the seedling feeding A sensor that operates when the seedling table is moving to the end position of the left and right strokes where the device operates, and an alarm device that issues an alarm when both the sensor and the seedling reduction sensor are in the detection state. A seedling supply device for a transplanter characterized by being provided.