JP2564256B2 - Plug seedling transplanter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a plug seedling transplanting machine that allows a plug claw to be taken out from a plug tray sent to the rear side of a machine body by a holding claw and transplanted to a field.

[Prior Art] In the conventional plug seedling transplanting machine of this type, the plug tray is intermittently vertically fed and reciprocally moved in the lateral direction so that the planting claw is moved from the pot at a position corresponding to the planting claw. The structure was such that the plug seedlings were grabbed and transplanted as they were.

[Problems to be Solved by the Invention] Therefore, since the plug tray is reciprocated in the lateral direction, the center of gravity of the airframe moves to the left and right, which makes it difficult to control the aircraft, and the straightness of the airframe deteriorates. There was a problem that the width became large.

[Means for Solving the Problems] The present invention solves such a problem and has good maneuverability so that the transplanting work can be performed well. Therefore, the plug tray is sent to the rear. At the rear of the stand, a winding rotary body that winds up the plug tray and sends it out to the front side is mounted so as to be intermittently rotatable. At the rear of the winding rotary body, a plug seedling is held from the pot of the plug tray. It is equipped with a sandwiching claw that can be rotated downward while taking it out so that it can reciprocate laterally, and the upper part of a flexible seedling guide shooter whose lower discharge port side is fixedly supported can move laterally together with the sandwiching claw. It is configured so as to interlock with the lower side thereof.

[Operation] Therefore, in the state in which the plug tray sent out to the rear is wound and the rotating body is intermittently rotated while winding, the holding claws move laterally and plug seeds are taken one by one from the lateral pot of the plug tray. It can be grasped and placed as it is on the upper part of the seedling guide shooter that moves with the gripping claws, and the plug seedlings are dropped into the inside of the deformed seedling guide shooter and are transplanted at a predetermined planting position.

Example Next, an example shown in the drawings will be described.

A pot (a) containing a plug seedling (B) in the center of the front of the aircraft, which has an engine (8) at the front, wheels (9) at both sides, and handles (10) at the rear. A belt-type feed table (1) capable of placing a large number of plug trays (A) on the horizontal axis and sending the plug trays (A) backward is provided, and the plug tray (A) is provided behind the feed table (1). Curved guide rods (11) that can be guided by touching both sides of
The winding rotating body (2), which is installed on both outer circumferences,
The shaft (2a) of the winding rotating body (2) driven by the motor (12) via the pulley belt (13), the feed table (1)
The winding rotary member (2) and the feed base (1) can be intermittently rotated by detection by a side sensor (20).

A plug tray (A) is provided by the winding rotary member (2).
It is installed so that the plug tray (A) can be fed forward from the lower side toward the lower side of the feed table (1) while winding up the wire. The plug tray (A) is attached to the outer periphery of the shaft (2a). A cylindrical body (2b) is installed so that the bottom surface of the pot (a) can come into contact with it while bending, and the shaft portion (5a) on both ends is pivotally supported on the outer periphery of the winding rotor (2) for conveyance. Crank-shaped horizontal rods (5), which are rotatable in the outer circumferential direction so as to be fitted between the pots (a) (a) adjacent to each other in the direction, are laid horizontally at regular intervals, and each horizontal rod (5) is a stopper (14). It is installed by elastically pressing in the outer peripheral direction by the torque springs (15) on both sides until it hits, and has a perforation projection (16) at a constant interval in the center of the outer peripheral surface below the winding rotating body (2). (1
A rotary photoelectric switch type perforation detector (7) is rotatably and rotatably mounted between the rear portions of both stays (18) extending rearward from both sides of the drum (17). 1
9) is installed by constructing it so that the forward and backward movement can be adjusted.

A feed screw (23) driven by a motor (22) in a forward and reverse direction and a guide rod (24) are provided between the rear portions of the support frames (21) (21) extending rearward from both sides of the winding rotary body (2). ) Is mounted horizontally, and the arm (26) is attached to the bracket (25) that is screwed into the feed screw (23) and fits into the guide rod (24).
A rocking cylinder (28) capable of rotating around the shaft (27) is continuously provided, and a pin cylinder (30) is provided at the tip end side of the seedling picking cylinder (29) continuously provided above the arm (26). ) Are connected to each other, and in the holder (31) connected to the tip side of the pin cylinder (30), three long holding claws (3) are equally distributed.
The projections (3a) that are pivotally attached to the shafts (32) at their bases and project from the bases of the holding claws (3) have compression springs (3
3) and a pin (30a) that moves in and out of the pin cylinder (30) is abutted upward, and the bracket (25) has concave portions (of different pitches on three hexagonal surfaces). Hexagonal rod (3) having 34a) (34b) in the longitudinal direction
4) is movably fitted and installed, and when the sensor (35) provided on the bracket (25) engages with the recesses (34a) (34b), the motor (22) is stopped and each plug tray ( It is installed and configured so that it can be applied to the case where the pitch between the pots (a) in the lateral direction of A) is different.

A seedling guide shooter (4) is erected on the lower side of the holding claw (3), and the seedling guide shooter (4) has four flexible portions so that the plug seedling (B) can flow down. The lower part of the seedling guide shooter (4), which is formed by combining the spring rods (4a) and serves as the discharge port, is located in the rear direction of both stays (18) so that the lower part of the seedling guide shooter (4) is in the rear direction of the perforation protrusion (16). 36) The seedling guide shoe (4) fixed and supported by the mouthpiece (4b) has a vertical holding claw (3).
It is configured to be fitted to a holder (38) which is rotatably mounted on a stay (37) below the bracket (25) so as to be positioned below the bracket (25).

FIGS. 12 to 14 show other embodiments of the seedling guide shooter (4), respectively. Instead of the spring rod (4a), two spring plates (4c) and two bent spring plates are shown. (4d)
Also, four flexible pipes (4e) with empty jet holes
It is configured by combining each.

Therefore, when the plug tray (A) is placed above the feed table (1), the vertical feed can be intermittently performed, and when the plug tray (A) engages with the winding rotary member (2), A horizontal rod (5) that is pressed in the outer peripheral direction
However, the plug tray (A), which is deeply fitted between the pots (a) (a) adjacent to each other in the transport direction, presses the plug tray (A) in a curved state so as not to bend and supports and engages the plug tray (A). , The vertical feed is intermittently carried out, and the empty plug tray (A) is sent to the lower side of the feed table (1).
Also, the drum (17) rotates as the aircraft advances.
Due to the piercing projections (16), concave holes are formed in the field scene as shown in the drawing.

In that state, when the holding claw (3) is stopped by detection by the sensor (35) while being laterally fed by the feed screw (23), each holding claw pushed out in the direction of arrow (a) by the operation of the seedling picking cylinder (29). The tip of (3) will pierce the plug seedling (B) in the pot (a), and then the pin cylinder (30) will cause the pin (30a) to move back and forth so that each pinching claw (3) is pivoted. (32) The plug seedling (B) can be held while being rotated to the center, and when the plug seedling (B) is taken out as it is, the perforation detector (1
When 9) detects the perforation, each of the holding claws (3) will open and drop the plug seedling (B) while rotating around the axis (27) to be in the vertical state, and the holding claws (3) The plug seedlings (B) discharged to the seedling guide shooter (4), which follows the movement and becomes bent as shown in FIG. 9, flows down as it is and is discharged from the lower part into the perforation in the field scene and transplanted. Will be done.

[Effects of the Invention] As described above, the present invention is configured to take out the plug seedling (B) that does not move laterally while winding the plug tray (A) by the winding rotating body (2) that rotates intermittently. As a result, the lateral width of the aircraft can be narrowed down to a small size, and the aircraft can be moved straight to facilitate maneuvering. In addition, the plug seedlings (B) can be taken out one by one while moving laterally. The nail (3) can be satisfactorily put into the seedling guide shooter (4) and can be planted at a predetermined planting position from the lower part thereof, so that the transplanting work can be carried out accurately.
It has the features that can be suitably implemented.

[Brief description of drawings]

FIG. 1 is a side cross-sectional view of an essential part which is an embodiment of the present invention, FIG. 2 is a side view of a transplanter with a part omitted, FIG. 3 is a plan view with a part omitted, and FIG. FIG. 5 is an enlarged view of a part of FIG.
FIG. 6 is a side view of a part of FIG. 4, FIG. 6 is a side sectional view of FIG. 5, FIG. 7 is a holding claw, FIG. 8 is a plan sectional view of a part thereof, and FIG. 1 is a right side view of a part of FIG. 1, FIG. 10 is a plan sectional view of a part thereof, and FIG. 11 is a perspective view of a part of FIG.
12 to 14 show other examples of seedling guide shooters, respectively. (A) …… Pot, (A) …… Plug tray (1) …… Feeder, (2) …… Rotating body (B) …… Plug seedling, (3) …… Clamping claw (4)… … Seedling guide shooter

Claims (1)

(57) [Claims] 1. A winding-up mechanism for feeding a plug tray (A) having a large number of pots (a) on its vertical axis to the rear side of a feed table (1) for feeding the plug tray (A) to the front side. The rotating body (2) is mounted so as to be rotatable intermittently, and is rotated backward while holding the plug seedling (B) from the pot (a) behind the winding rotating body (2). A slidable claw (3) that can be reciprocated in the lateral direction is provided, and the upper part of a flexible seedling guide shooter (4) whose lower discharge port side is fixedly supported is laterally moved together with the claw (3). A plug seedling transplanter characterized by being linked and linked to the lower side so that it can move.