JPH0369241B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device for straightening various seedlings grown in seedling boxes for raising seedlings. This invention relates to a seedling straightening device that aims to correct irregular seedlings such as tangles, bends, etc., and maintain an accurate planting posture so as to eliminate supplementary planting work after transplanting.

[Conventional technology]

Generally, seedlings such as onions are grown in a greenhouse in a seedling box and then transplanted to a field.

Various configurations of this seedling box for raising seedlings have been developed, and a seedling box 1 for raising seedlings having the configuration shown in FIG. 7 is generally known.

The illustrated seedling box 1 includes side plates 2, 2, 3, and 3 arranged on the front, back, left, and right, and a bottom plate 4, and a box body 5 with an open top.
A plurality of partition plates 6, 7 are arranged inside this box body 5.
are provided at predetermined intervals to form a plurality of seedling chambers 8, 8, . . . having openings on the upper surface. Furthermore, holes 10 are formed in the bottoms 9 of each of the seedling chambers 8, 8, . . . .

When each seedling chamber 8, 8, ... is filled with seedling soil 11, seeds are sown, and seedlings 12 are grown, their leaf blades 13 may become entwined with neighboring seedlings 12 as shown in the figure, or phototropism may occur. The seedlings may be bent due to the weathering, or the seedlings themselves may become tilted due to external impact during transportation.

On the other hand, when transplanting seedlings, from seedling box 1 to seedling 12
They are mechanically extracted and transplanted into the field. To explain this configuration, for example, as shown in FIG. 8, the seedling box 1 for raising seedlings is placed in an upright position on a seedling box feeding device 15, and a seedling extruding device is provided on the back side of the seedling box 1 for raising seedlings. The seedlings 12 are each taken out from the seedling box 1 for raising seedlings by pushing out the seedlings 12 from the respective seedling chambers 8, 8, .

The taken out seedlings 12, 12, ... are placed in the seedling box 1 for raising seedlings.
Seedlings 12, 12, . . . are transferred to a seedling pedestal 19 in front via a conveyor 18 with a flat surface provided on the front side.

Note that this seedling pedestal 19 has an arbitrary configuration, and after manually sorting the seedlings 12, 12 transferred to this seedling pedestal 19, the seedlings 12, 12 may be supplied to a seedling winding device of a tape winding machine, or The seedlings 12 are supplied to a predetermined seedling feeding device of the transplanting machine by using any method such as directly feeding the seedling winding device of the tape-type transplanting machine or directly transferring them to the seedling planting section of the transplanting machine. Then, the seedlings 12 are transplanted to the field using a machine.

[Problem that the invention seeks to solve]

When growing seedlings 12 using the seedling box 1 for raising seedlings, there are the following drawbacks.

In other words, as shown in FIG. 7, the seedlings 12 have their leaf blades entwined or bent, and the seedlings themselves tilt.
When the seedlings 12 are pushed out of the seedling box 1 by 7, . . . , the seedlings 12, 12, .

For this reason, the planting posture of the seedlings 12 in the field may be tilted, or the tangled seedlings 12 may be planted without being separated, resulting in disadvantages such as the need for supplementary planting work after planting, lumps, and poor growth. There is.

[Means for solving problems]

The present invention was created in view of the above-mentioned drawbacks, and its purpose is to correct irregularities that occur in seedlings, such as entangling and bending of leaf blades, and to improve the replanting work that will be required later. It is an object of the present invention to provide a seedling straightening device that can eliminate the need for.

In order to achieve this object, the seedling straightening device according to the present invention has a seedling box for raising a seedling in which a large number of seedling chambers are arranged through a partition plate, and a reciprocating extrusion rod is passed through a hole provided at the bottom of the seedling box. The device is characterized in that a plurality of rows of sliding rods are formed at predetermined intervals on the front, rear, left and right sides of the surface of a rotatably driven conveyor at a front position of a seedling extrusion device for taking out seedlings from the top opening of the nursery room. be.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing an embodiment of the seedling straightening device according to the present invention, FIG. 2 is a partially cutaway plan view of the same, and FIG. 3 is an explanatory cross-sectional view of the seedling straightening device.

In the figure, the seedling straightening device 21 includes a seedling box feeding device 15 that sequentially moves the seedling box 1 vertically downward, and a seedling pushing device 16 that pushes out the seedlings 12 from the seedling box 1. It is composed of a combination of.

First, the configuration of the seedling box feeding device 16 will be explained.
Reference numeral 22 denotes a seedling box mounting stand having a U-shaped cross section, and is composed of side plates 23, 23 at both left and right ends, and a plate 24, with an oblong window hole 25 at the lower end of the bottom plate 24 and small holes 2 at both lower ends.
6 and 26, respectively, and are erected in a substantially upright manner as shown in the figure.

Reference numerals 27 and 27 denote a pair of left and right feed gears provided at both ends of the lower end of the bottom plate 24, and their tooth tips 28 are positioned at both ends of the seedling box 1 for raising seedlings as described later through the small holes 26, 26. Seedling chambers 8, 8 holes 10, 10
It is configured to fit with the

The feed gears 27, 27 are interlocked with, for example, a seedling extrusion device 16, which will be described later, so that when one seedling extrusion operation is completed, the feed gears 27, 27 are driven one pitch, so that the seedling box 1 for raising seedlings is placed in one horizontal row. The structure is such that it descends by the size of the seedling room.

Note that 29, 29, . . . are guides provided at the inner tip of the side plate 23 of the seedling box mounting stand 22, and are guides for ensuring safety to prevent the seedling box 1 for raising seedlings from falling over or being pushed out.

Next, the structure of the seedling extrusion device 16 for taking out the seedlings 12 grown in each seedling room 8 of this seedling box 1 for raising seedlings will be explained.

This seedling extrusion device 16 includes the seedling box feeding device 1.
It is provided on the back side of 5. In other words, 31 is the seedling box mounting base 22 and support plate of the seedling box feeding device 15, which is equipped with a motor 32 as a driving source, and the sprocket 35 of the rotating shaft 34 provided via the motor 32 and supports 33, 33. A driving device 38 is constructed by connecting a roller chain 37 between the rollers 36 and 36.

Reference numeral 39 denotes a horizontal rod 39 in which a plurality of extrusion rods 17 protruding toward the front, that is, the side of the seedling box feeding device 15, are provided at predetermined intervals. The number of the extrusion rods 17 corresponds to the number of the seedling chambers 8 and the distance corresponds to the holes 10 of the seedling chambers 8, and the tip of each extrusion rod 17 is connected to the guide tool 41.
They are supported so as to be penetrable in the corresponding guide holes 42, respectively.

The horizontal rods 39 are connected to the drive device 38 to cause the horizontal rods 39 to move back and forth. The seedlings 1 are inserted through the window hole 25 and into the hole 10 of each seedling chamber 8 of the seedling box 1 for raising seedlings.
2 is pushed out from the top opening of the seedling chamber 8.

In other words, cranks 4 are attached to both ends of the rotating shaft 34.
5, 45 are attached, and the cranks 45, 45 and both ends of the horizontal rod 39 are connected via links 46, 46, and each extrusion rod 17 formed on the horizontal rod 39 is reciprocated back and forth by the drive device 38. Let me, seedlings 12
is pushed out and taken out from the seedling chamber 8.

In addition, in the case of illustration, the extrusion rod 17 is
The number of containers is the same as the number of seedling boxes 1 and the number of horizontal single-level seedling chambers 8, but if necessary, the design of the crank 45 etc. may be changed so that only one seedling chamber 8 is installed.
Further, by having a configuration in which the opening penetrates only a certain number of seedling chambers 8, it is also possible to take out one or a certain number of seedlings 12.

Furthermore, the configuration of the correction device 50 for correcting seedlings, which is the gist of the present invention, will be explained.

The straightening device 21 is installed at the lower end of the front end side of the seedling box feeding device 15 in a direction perpendicular thereto or in an arbitrary angular direction. In other words, the conveyor 49 is
The conveyor 49 is installed so as to be driven in a counterclockwise direction via a predetermined drive device (not shown), and a plurality of sliding rods 50 are formed on the surface of the conveyor 49.

As shown in the figure, the sliding rods 50 are rod-shaped with a predetermined height and a spacing 1 equal to or approximately the same as the width 1 of the seedling chamber 8 in the seedling box 1 for raising seedlings, and made up of multiple rows. The entire surface of the conveyor 49 is covered with bodies and the like.

Further, the sliding rod 50 is not limited to the entire surface of the conveyor 49, but may be provided in a certain range of the surface or in a certain space to constitute a sliding rod. 51 is a seedling pedestal.

Note that if the conveyor 49 and sliding rod 50 are made of elastic material such as rubber, damage to the seedlings 12 can be prevented.

[Action of the invention]

Next, the operation of the present invention will be explained with reference to FIGS. 4 to 6.

A seedling box 1 for raising seedlings in which seedlings 12 have been grown in a greenhouse is placed on a seedling box mounting stand 22 of a seedling box feeding device 15.

Then, the drive device 38 is started to operate the extrusion rod 17 of the horizontal rod 39 in the forward direction, the tip of the extrusion rod 17 is passed through the hole 10 of each seedling chamber 8, and the tip of the extrusion rod 17 is inserted into the hole 10 of each seedling chamber 8. The seedlings 12 are taken out by protruding from the seedling chamber 8 and pushing out the seedlings 12 grown in the seedling chamber 8 together with seedling soil from the upper surface opening of the seedling chamber 8.

In this way, the seedlings 12 are each placed in the straightening device 2.
1, the leaf blade part 13 of each seedling 12 enters between the predetermined sliding rods 50, 50 on the conveyor 49 that is being driven in the direction of the arrow; The seedling 12 is held between the rear sliding connecting rods 50, 50, . . . following the connecting rods 50, 50. This, together with the driving of the sliding rods 50, 50, ... and the conveyor 49, causes the entangled seedlings 1 to
2 are separated from each other, bent and tilted seedlings 12
While being held between the sliding rods 50, 50, . . . , their posture is corrected by the holding time associated with forward driving, and the seedlings are transferred to the next seedling holder 51.

Subsequently, the straightened seedlings 12 can be fed to the seedling feeding device of the transplanter by any method as described above.

〔Effect of the invention〕

The present invention has the above configuration and provides the following effects.

In a seedling box for raising seedlings, the entanglement of grown seedlings can be forcibly separated by a sliding rod of a straightening device.

Furthermore, even if the seedling is bent or sloped, it can be leveled out in the same way, and the seedling can be forcibly corrected to almost the correct shape.

The seedlings that have been straightened by the straightening device can be transferred to the seedling holder in an aligned state, making it easy to transfer them to the next seedling feeding device such as a seedling transplanter, for example.

Since the seedlings can be transferred to the seedling holder in a corrected alignment state, the conventional manual alignment work can be omitted, and the labor of the work can be saved.

There is no bending or inclination in the seedlings, the distance between the seedlings is always constant during transplanting, there is no need for supplementary planting, the size of the harvested product is maintained, and the economic effect is improved.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view of the same, Fig. 3 is a sectional view for explaining the correction device, and Figs. 4 to 6 show the operation of the present invention. FIG. 7 is an explanatory diagram showing the state of growth of seedlings in a seedling box, and FIG. 8 is a schematic perspective view of a conventional example. 1... Seedling box for raising seedlings, 15... Seedling box feeding device, 1
6... Seedling extrusion device, 17... Extrusion rod, 21...
...Orthodontic device, 50...Sliding contact table.

Claims (1)

[Claims] 1. A seedling extrusion device for taking out seedlings from the upper opening of the nursery chamber by passing a reciprocating extrusion rod through a hole provided at the bottom of a seedling box for raising a number of seedling chambers arranged through a partition plate. A seedling straightening device characterized in that a plurality of rows of sliding rods are formed on the front, rear, left and right sides at predetermined intervals on the surface of a rotatably driven conveyor.