Seedling transplanting machine

Abstract

A seedling transplanting machine has a preparation seedling rack, thus even if a machine body shakes due to unevenness of a field, rotation of an expansion support mechanism can be suppressed, even if the number of preparation seedling loading benches is increased, the seedling can be put in and taken out easily, and even if the seedling is loaded, motion of the expansion support mechanism can not be affected. A side part of a driving car body is provided with the preparation seedling rack, the preparation seedling rack is provided with a force application device used for supporting the plurality of preparation seedling loading benches to form the movable expansion support mechanism and applying force to the expansion support mechanism. The seedling transplanting machine is provided with a switching mechanism which enables the expansion support mechanism to act, in order to switch stack forms of the plurality of preparation seedling loading benches arranged along an upward-and-downward direction and expansion forms of the plurality of preparation seedling loading benches arranged along a forward-and-backward direction, when the preparation seedling rack is switched from the stack form to the expansion form, the force application device applies a force to the expansion support mechanism towards an expansion form side at a movement starting end side, and applies a force to the expansion support mechanism towards a stack form side at a movement terminal side.

Description

Technical field [0001] The present invention relates to a seedling transplanting machine. The seedling transplanting machine is provided with a preparatory seedling frame, and the preparatory seedling frame is provided with a plurality of preparatory seedling mounting platforms for loading seedlings. Background technique [0002] As shown in Patent Document 1, a seedling transplanter is known that includes a preliminary seedling rack at the left and right positions of the bridge, and the preliminary seedling rack is provided with three preliminary seedling mounting platforms for loading seedlings. The left and right preparatory seedling racks are respectively supported so as to be rotatable by an unfolding support mechanism that moves the preparatory seedling placing table back and forth while maintaining the seedling placing posture of the preparative seedling placing table, thereby switching the preparative seedling loading The setting table is arranged in series in the front a...

AI Technical Summary

Problems solved by technology

[0005] However, when the preliminary seedling rack described in Patent Document 1 is switched to an unfolded form or a stacked form, it is necessary to activate the power to expand the supporting mechanism at the switching starting end side, and to suppress the rapid movement of the unfolding supporting mechanism at the switching terminal side. Therefore there is the problem that it is difficult to smoothly carry out the switching of the preparatory seedling frame

[0006] Moreover, although the rotation of the expansion support mechanism is limited by the stopper at the position of the unfolded form or the stacked form, when the machine body shakes due to the movement of the operator when loading the seedlings or the unevenness of the field during planting travel, There is a problem that the connecting rod of the unfolding support mechanism rotates and generates vibration

[0007] And when setting up the preparatory rice shoot loading platform, because the disposition position of the parts that set up such as prop is different, there is such problem: the operation space that rice shoot is loaded into to the preliminary rice shoot loading platform and rice shoot is taken out from the preliminary rice shoot loading platform is added. The parts used are blocked, so the efficiency of the seedling loading and unloading operations is reduced

[0008] And when the seedlings are loaded onto the additional seedling loading platform, due to the different configuration positions of the parts used for the extension, there is such a problem: the weight of the preliminary rice seedling loading platform is out of balance, and the action of the expansion support mechanism becomes unstable. It takes time to switch between the unfolded form and the loaded form, and the work efficiency is low

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