JPH02177824A - Leveling apparatus for sowing machine - Google Patents

Abstract

PURPOSE:To eliminate the swell of the soil at the upstream and downstream ends of a raising seedling box and to uniformly level the whole surface of the bed soil by attaching a supporting member to a transfer table in a specific state and attaching a corner-leveling tool to the supporting member in a state forced downward. CONSTITUTION:A corner leveling tool 1 is forced downward with the 1st forcing mechanism D relative to a supporting member 8, which is supported on a transfer table 2 through an inclined guiding mechanism 10 and transferred with the 2nd forcing mechanism 11 toward the transfer limit at the upstream side of the transfer direction. The downward component of the force applied by the forcing mechanism 11 is made to be larger than the force applied by the forcing mechanism 9. The leveling of the soil at the upstream and downstream ends of a raising seedling box 1 can be performed with single apparatus.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a rotating brush for leveling the surface of the bed soil of a seedling growing box that is conveyed in a fixed direction on a conveyor table, by moving a rotating brush above the seedling growing box. This invention relates to a leveling device for a seeding machine installed at a location.

[Conventional technology]

Generally, in a seeding machine, a rotating brush is placed above the seedling box being transported on a conveyor table so as to be in contact with the bed soil of the seedling box, thereby leveling the surface of the bed soil. was.

However, the surface of the soil in the seedling nursery box is usually lower than the edge of the nursery box, so when the rotary swing passes over the edge of the nursery box, the soil near the edge rises in an arc shape. Therefore, if you sow seeds in this state,
On the raised bed soil, some seeds roll down and become difficult to sow in the bed soil at the front and rear ends of the transport of the seedling nursery box, and additional fallen seeds gather near the lower part of the raised bed soil. It will end up being put away.

Therefore, if the seedlings grown in this state are used as mat-shaped seedlings and planted using a rice transplanter, the planting in the raised soil area will be lacking, and before and after that, an excessive number of seedlings will be planted.
This may cause problems in later work.

In order to eliminate the above-mentioned problem, it is sufficient to flatten the entire surface of the soil in the seedling box.
-149025, and JP-A-61-14902
There is one shown in Publication No. 7.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, independent leveling devices are required to level the raised bed soil that grows at the ends of the bed soil on the upper and lower sides of the transport of the seedling nursery box.
Is it possible to level the subsoil? Is it uneconomical? In addition, both leveling devices must be precisely adjusted to level the heaving areas on the upper and lower sides to the same level. It was of low practical value because of the trouble of having to adjust the level with the rotary swing.

Therefore, the present invention eliminates the heaping up of the edges of the bed soil on the upper and lower sides of the transport of the seedling nursery box, and achieves a leveling device that evenly levels the entire bed soil with a single device. The purpose is to obtain a leveling device with high practical value.

[Means to solve the problem]

In order to achieve the above object, the present invention provides the leveling device of the seeding machine described at the beginning, which is equipped with: (1) an edge for scraping the bed soil that protrudes toward the upper side in the conveyance direction and a horizontal bed soil compaction plane; a first biasing device for supporting a corner leveling tool such that it can move up and down with respect to a support member provided on the conveyance table side, and urging the corner leveling tool downward to a set height with respect to the support member; The support member is provided with a mechanism that supports the support member on the conveyance table side via an inclination guide mechanism so as to be movable back and forth along an inclination direction that becomes higher toward the lower side in the conveyance direction, and moves the support member toward the upper side of the conveyance direction. A second biasing mechanism is provided to bias the supporting member toward the limit, and a downward component of the biasing force applied to the support member by the second biasing mechanism is applied to the first biasing member.
Both of the biasing mechanisms are set so as to be larger than the downward biasing force of the biasing mechanism.

In addition, a brush height adjustment mechanism that can adjust the set height of the rotating brush and a support member height adjustment mechanism that can adjust the set height of the support member of the leveling device are provided, and the brush height adjustment mechanism The support member height adjustment mechanism may also be operated in conjunction with the operation.

[For production]

To explain the effect of the above configuration (2) in the case where one seedling raising box passes through a leveling device, first, the etch of the corner leveling tool comes into contact with the outer surface of the lower side of the conveying seedling raising box. death,
By being pushed by the seedling growing box, the corner leveling tool moves forward (to the lower side of conveyance) and upwards by the action of the inclined guide mechanism, together with the support member, against the urging force of the second urging mechanism.
(See Figure 3 (a)). When the corner leveling tool rides on the upper edge surface of the seedling box, the corner leveling tool is moved to a state where the soil compaction plane is along the edge upper surface by the urging force of the second urging mechanism. is pulled toward the top of the conveyance while keeping it at a constant height, and resists the urging force of the first biasing mechanism until the soil pressing plane separates from the upper edge surface in the top direction of the conveyance. Then, the corner leveler is raised relative to the support member (see FIG. 3(b)). In this state, at the moment when the soil pressing plane separates from the upper edge surface in the upper direction of the conveyance, the soil pressing plane is moved by the downward biasing force stored in the first biasing mechanism.
This is to flatten and level the mounds of soil on the lower side of the transport of the seedling box (see Figure 3 (c)).

When the corner leveling tool, which has returned to its original state, reaches the mound of soil on the upper side of the transport of the seedling nursery box, the edge scrapes off the mound and levels the soil (third stage).
(See Figures (d) and (e)), when this edge comes into contact with the inner surface of the upper side of the transporting side of the seedling nursery box, the corner leveling tool holds the bed soil scraped off with the edge and moves the edge to the lower side of the transporting side. It is operated in the same way as when it is in contact with the outer surface (see Figure 3 (f)), and the scraped soil is discharged and it returns to its original state (see Figure 3 (g)).

When the seedling boxes are continuously transported, the leveling device repeats the above operations.

In addition, according to the configuration in (■), in addition to the action described in item 2, if the rotary brush height adjustment mechanism is operated to set the level of the surface height of the bed soil, the support member height adjustment mechanism will also be automatically adjusted. Be manipulated.

[Effect of idea]

Therefore, claim 1. According to this leveling device, it is possible to level both the raised bed soil on the lower side and the upper side of the transport of the seedling nursery box with one device, so the overall leveling device can be made more compact and the cost can be reduced. This has become more advantageous and economical, and the troublesome work of matching the levels of two devices, which was required in the past, is no longer necessary.

Furthermore, maintenance work is now easier because it only needs to be performed on one leveling device.

Claim 2. In addition to the above-mentioned effects, this leveling device eliminates the need to adjust the height of the leveling device to adjust the height of the soil surface, making it very convenient to adjust the height of the soil surface. ,
And it was made easy to do.

〔Example〕

FIG. 4 shows the overall configuration of the seeding machine.

This seeding machine performs various operations such as soil filling, irrigation, sowing, and soil covering from the upper side of the conveyor table (2) on which the seedling raising box (1) is placed and transferred. Supply device (A)
, (B), (C), and (D).

As shown in FIGS. 1 and 2, the soil filling device (A) includes a seedling raising box (1) that is transported in a fixed direction on a transport platform (2).
A rotating brush (3) for leveling the surface of the bed soil is provided above the seedling box (1), and the rotating brush (3) is used to level the surface of the soil. The equipment is equipped with a leveling device (4) for leveling the side bed soil edges on the upper side and the lower side of the conveyor.

The leveling device (4) is configured as follows. That is, a corner leveling tool (7) equipped with an edge (5) for scraping the floor soil protruding toward the upper side in the conveyance direction and a horizontal soil compaction plane (6) is attached to the conveyor table (2). Base plates (12) installed on the left and right sides of the soil filling device (A)
, (12) so as to be movable up and down, and the corner leveling tool (7).
) is provided with a compression spring (9) as a first biasing mechanism that biases the support member (8) downward to a set height,
The support member (8) is supported by the base plates (12), (12) via the tilt guide mechanism (10) so as to be movable back and forth along the tilt direction, which becomes higher toward the lower side in the conveyance direction. A tension splitter (11), which is a second biasing mechanism that biases and moves the support member (8) toward the upper transfer limit, is provided on the base plate (12), and the tension splitter (11) moves the support member ( both springs (9) so that the downward component of the biasing force applied to the compression spring (9) is larger than the downward biasing force of the compression spring (9);
(11) is set.

The corner leveling tool (7) has a shaft (14
) is fitted into the cylinder (15) of the support member (8) so that it can move freely up and down, and a compression splitter (9) is attached to surround the cylinder (15).

A pin that engages with the cylinder (15) is attached to the upper end of the shaft (14), and a corner equalizing tool (
7) The downward removal is prevented.

The inclined guide mechanism (10) is constructed by inserting the stepped end of the support member (8) into a long hole (13) formed in the base plate (12), which becomes higher toward the lower side of the conveyance side. It is.

Further, as shown in FIG. 1, a brush height adjustment mechanism (16) that can adjust the set height of the rotation plan (3), and
A support member height adjustment mechanism (17) is provided that can adjust the set height of the support member (8) of the leveling device (4), and the support member height can be adjusted by operating the brush height adjustment mechanism (16). The height adjustment mechanism (17) is also linked by a parallelogram link mechanism (18) so that it can be operated in conjunction.

In other words, by fitting the base plate (12) with the rollers (19) provided above and below the base plate (12) into the vertical rail (20) that is substantially horizontally U-shaped in plan view and provided in the soil filling device (A),
The leveling device (4) is attached to the soil filling device (A) so as to be movable up and down, and the pivot point (
A support member height adjustment mechanism (17) is constructed by engaging the tip of a leveling arm (21) that is rotatable around p+) with the elongated hole (23) of the base plate (12), It is rotatable around the flat arm (21) and the pivot point (P2) provided on the soil filling device (A), and has a rotating brush (3) at the tip.
) A parallelogram link mechanism (18) is constructed by pivotally connecting a brush arm (22) which is a rotary plan height adjustment mechanism (17) equipped with a joint (24).

Then, the swing arm (22) is moved to the operating lever (25).
This allows for rocking operation and position maintenance.

Therefore, if the spans (, i2+) + (12) of the leveling arm (21) and the brush arm (22) are made equal, the corner leveling tool (7) can be adjusted by operating the operating lever (25).
and rotation plan (3) exhibit the same amount of vertical movement.

In the seedling raising box (1) in Figure 3, (26) is the heap of soil on the lower side of transport, (27) is the heap of soil on the upper side of transport, and Figure 3 (a) or 1) shows the level of soil. Flat device (
4) shows a series of leveling conditions of the bed soil.

It should be noted that the present invention is not limited to the structure shown in the accompanying drawings by adding reference numerals in the claims for convenient comparison with the drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of a leveling device for a seeding machine according to the present invention,
Figure 1 is a side view of the main parts, Figure 2 is a plan view of the main parts, Figures 3 (a) to (g) are side views of the main parts showing a series of actions, and Figure 4 is a side view of the entire seeding machine. be. (1)・・・Seedling box, (2)・・・Transportation platform,
(3)・・・Rotating brush, (5)・・・・・・
Edge, (6)...Soil suppression plane, (7)...
... Corner balance tool, (8) ... Support member,
(9)...First biasing mechanism, (10)...
- Inclined guide mechanism, (11)...second biasing mechanism,
(16)...Brush height adjustment mechanism, (17).
...Support member height adjustment mechanism.

Claims (1)

[Claims] 1. A seedling growing box (1) that is transported in a fixed direction on a transport platform (2)
) is a leveling device for a seeding machine in which a rotating brush (3) for leveling the surface of the soil bed is provided above the seedling box (1), and the device protrudes toward the upper side in the conveyance direction. A corner leveling tool (7) equipped with an edge (5) for scraping the floor soil and a horizontal soil compaction plane (6) is attached to the support member (8) provided on the transport platform (2) side. The corner leveling tool (7) is supported vertically movably by the supporting member (
8), the first biasing mechanism (
9), the supporting member (8) is supported on the conveying table (2) side via an inclined guide mechanism (10) so as to be movable back and forth along an inclined direction that becomes higher toward the lower side in the conveying direction. , a second biasing mechanism (11) is provided that biases and moves the support member (8) toward the upper transfer limit, and the second bias mechanism (11) applies force to the support member (8). The downward component of the biasing force applied to the first biasing mechanism (9)
Both biasing mechanisms (9
), (11) is set as a leveling device for a seeding machine. 2. A brush height adjustment mechanism (16) that can adjust the set height of the rotating brush (3), and a support member (8) for the leveling device.
) that can adjust the set height of the support member height adjustment mechanism (17
), and the brush height adjustment mechanism (16)
2. The leveling device for a seeding machine according to claim 1, wherein the support member height adjustment mechanism (17) is also linked to be operated in conjunction with the operation.