JPH0466011A - Seedling transplanter - Google Patents

Abstract

PURPOSE:To smoothly perform longitudinal sending of seedling by providing an auxiliary rotor rotating in higher frequency than rotation of an endless rotating belt between the endless rotating belt and a seedling-taking out port. CONSTITUTION:Said seedling transplanter is connected to a traveling machine body in freely rising and lowering through a link mechanism 1 and has a seedling-loading stage 3 having backwardly declining inclined attitude driven to left and right in reciprocating state with a constant stroke to a planting transmission case 2 co-used as a frame and a planting mechanism 4 taking out with each strain of crop seedling laid on a seedling-loading stage 3 from a seedling-taking out port 5 provided at the lowest end part of the seedling- loading stage 3, etc. An endless rotating belt 14 having hooking protrusions 13 ranging over total breath of row width in a side of a seedling-taking out port 5 of the seedling-loading stage 3 is installed in a state of upwardly projecting from the seedling-loading face and seedlings 'a' laid in a standing shape is rotated by each fixed amount with the endless rotating belt 14 in a transferring stroke end of the seedling-loading stage 3 and longitudinally sent to the seedling-taking out port 5.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a machine for transplanting crop seedlings, such as rice straw, etc., and more specifically, a seedling tray that places crop seedlings in an upright position and moves back and forth horizontally. An endless rotation band that rotates by a predetermined amount at the end of the movement stroke to vertically feed the placed seedlings toward the seedling take-out port.
The present invention relates to a seedling transplanter that is provided so as to protrude from a seedling placement surface.

[Conventional technology]

In the above-mentioned seedling transplanting machine, conventionally, a partition wall along the feeding direction is provided on the downstream side of the endless rotating belt in the feeding direction, so that the seedlings can be moved downward while preventing the seedlings from being disturbed in their posture due to the lateral movement of the seedling table. There is a system that allows smooth guidance (for example, see Japanese Patent Application No. 1-321639 filed by the present applicant).

[Problem to be solved by the invention]

However, in the above conventional structure, when entering the lower side from the seedling mounting surface of the seedling stand at the terminal end of the endless rotating belt,
There is a risk that the roots of hard-rooted crop seedlings, such as rushes, may get caught on the feeding locking protrusion and cause them to be rotated, and there is also a risk that the roots of the crop seedlings get caught on the front edge of the partition wall, impeding transportation. However, there was a risk that the vertical feeding of seedlings could not be carried out smoothly, so there was room for revision.

An object of the present invention is to eliminate the above-mentioned disadvantages.

[Means to solve the problem]

A characteristic configuration of the present invention is that in the seedling transplanting machine described at the beginning, a drive rotation is performed between the endless rotation band and the seedling take-out port at a higher frequency than the rotation movement of the endless rotation band. The point is that an auxiliary rotating body is provided.

[For production]

Even if the roots of crop seedlings are caught and stagnated at the end of the endless rotating belt in the feeding direction, the auxiliary rotating body forcibly moves the stagnant seedlings toward the seedling take-out port. Moreover, since the auxiliary rotating body rotates more frequently than the endless rotating band, it will operate at least once after the endless rotating band operates until the next operation, and during vertical feed operation. , seedlings will not stagnate.

〔Effect of the invention〕

Therefore, according to the present invention, seedlings are prevented from stagnation at the end of the endless rotating belt provided at a predetermined distance from the seedling take-out port in order to avoid the sliding rail that slidably supports the seedling stand. This can be effectively prevented and the occurrence of stock shortages can be prevented.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a strawberry seedling transplanter according to the present invention. This seedling transplanter is connected to a traveling body (not shown) via a link mechanism (1) so as to be able to rise and fall freely, and is driven to reciprocate left and right at a constant stroke with respect to a planting transmission case (2) that also serves as a frame. The rice seedling stand (3) is tilted downward after the seedling stand (3) is placed, and the strawberry seedlings (a) [crop An example of a seedling A planting mechanism (4) that takes out and plants seedlings one by one;
Prior to the seedling retrieval operation in step 4), a seedling holder (6) or the like is provided to hold the first seedling (a) that has been sent out near the seedling retrieval port (5) and forcibly move it to the seedling retrieval port (5). It is preparation.

The strawberry seedlings placed on the seedling stand (3) are seedlings obtained by dividing a mother plant grown on the bed. teeth,
Since there are only old stocks, it is necessary to remove them. The old stock removal device (7) is shown in FIGS. 5 and 6. This device (7) is located at the bottom (8a) of the cylindrical mother plant storage device (8).
) is provided with an old stock cutting tool (11) which can be freely driven and rotated around the vertical axis by an electric motor (9) and can be moved up and down by a shift operation mechanism (lO), and the bottom part (8a) is equipped with a It is equipped with a blocking locking protrusion (12) so that old stock removal can be easily performed.

An endless rotation band (14) with locking protrusions (13) extending over the entire length of the row is protruded upward from the seedling placement surface (3a) at a location on the side of the seedling take-out port (5) of the seedling placement table (3). The endless rotation band (14) rotates a predetermined amount at a time at the end of the movement stroke of the seedling stand (3) to transfer the seedling (a) placed in an upright position to the seedling take-out port (5). ).

Further, as shown in FIG. 4, a spare seedling storage part (15) for placing and storing spare seedlings is provided at the upper end of the seedling stand (3). That is, the support frame (15a) is fixedly extended to the upper end of the seedling stand (3) toward the front side, and this support frame (15a)
) A spare seedling storage box (15b) in which spare seedlings are stored in an upright position.
It is placed and supported.

The support frame (15a) is tilted downward in the front, and the spare seedling storage box (15b) protrudes rearward in the supported state, effectively preventing the support frame (15a) from falling and reducing the amount of forward protrusion of the support frame (15a). It is structured to make it short.

The seedling holder (6) includes a support arm (18) pivotally connected to the planting transmission case (2) via a pair of front and rear links (17a) and (17b), and this support arm (18).
The seedling holding wind (19) is movable relative to the seedling holding wind (19), which is biased forward by a coil spring (20), and moved back and forth by a cam mechanism (21) to support the planting mechanism (4). ) is configured to perform the above-mentioned seedling holding action prior to the operation.

Then, as shown in Figures 2 and 3, there is a seedling stand (3).
A rake-shaped partition (23) is interposed between each of the fixed support plates (25), (25) erected from the respective strip partitions (24), (24) at the lower end of the partitions (24) and (25) so as to be relatively movable up and down. , whose upper end is a pair of left and right swinging arms (26).

(26) and fixed support plate (25)
.

Guide pins (28), (28) are provided which engage with the upper and lower elongated holes (27), (27) formed in (25).

Further, a swinging arm (30) interlockingly connected to the drive link (17a) of the seedling holder (6) via a wire (29) is urged to swing forward by a spring (31). The arm (30) and the upper part of the partition (23) are interlocked and connected via a push/pull rod (32).

When the seedling holder (6) is in the backward retracted position, the wire (
29), the swinging arm (30) releases the spring (3).
1), and the partition (23) is retracted upward. Then, the seedling holder (6) is connected to the seedling take-out port (5).
As the wire (29) moves forward, the tensile force of the wire (29) becomes weaker, the swinging arm (30) swings forward due to the biasing force of the spring (31), and the partition (23) moves downward. It is structured like this.

During this downward movement, the lower end of the partition (23) formed into a sharp point acts on the roots of the seedling (a), ensuring that the target fungus and the seedlings on its side are separated during planting. It is structured so that it can be done. Further, the partition (23) is formed into a plate shape extending in the front-rear direction, and is configured to effectively prevent the seedling (a) from falling sideways.

The endless rotating belt (14) and the seedling take-out port (5)
) is provided with an auxiliary rotating body (33) that rotates intermittently in synchronization with the operation of the seedling holder (6).

As shown in Fig. 3, this auxiliary rotating body (33) is formed into a medium-thin tapered shape for each plant to be planted, and has the function of feeding the seedlings, as well as the function of separating and dividing each plant to be planted in advance. The partitioning device (23) is externally attached to the swinging shaft (34) of the swinging arm (3o) for driving the partitioning tool (23), and is moved in the seedling feeding direction via the one-way clutch (35). The structure is such that the only part rotates intermittently. Note that a partition wall (36) for preventing the seedlings (a) from shifting laterally is provided between the auxiliary rotating body (33) and the seedling take-out port (5).

[Another example]

The auxiliary rotating body (33) may rotate constantly instead of rotating intermittently.

Further, the auxiliary rotating body may have a configuration in which a plurality of disc bodies are arranged in parallel on the same support shaft.

Incidentally, although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief Description of the Drawings] The drawings show an embodiment of the seedling transplanter according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a cutaway side view of the main part, and Fig. 3 is a cutaway rear view of the main part. , FIG. 4 is a side view of the preliminary seedling stand, FIG. 5 is a cutaway side view of the old plant removal device, and FIG. 6 is a plan view of the old plant removal device. (3)...Seedling stand, (3a)...Seedling placement, (5)...Seedling take-out port, (14)...
...Endless rotating belt, (33) ...Auxiliary rotating body.

Claims (1)

[Claims] Seedling stand (3) that places crop seedlings in an upright position and moves them back and forth
), an endless rotation band (14) that rotates by a predetermined amount at the end of the movement stroke to vertically feed the placed seedlings toward the seedling take-out port (5) protrudes from the seedling placement surface (3a). A seedling transplanting machine provided with said endless rotating belt (14)
and the seedling take-out port (5), the endless rotating belt (1
A seedling transplanter equipped with an auxiliary rotating body (33) that rotates more frequently than the rotational movement of 4).