JP2000201543A - Seeding machine for seedling raising box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure culturing soil required for every seedling chambers and reduce amount difference of the culturing soil among seedling chambers in a seeding machine for seedling raising boxes continuously performing earthing, seeding and soil covering to the seedling raising boxes while carrying the seedling raising boxes in which many seedling chambers are arranged in one direction. SOLUTION: In this seeding machine, two earthing devices 3 and 4 are arranged along a carrying direction and land rollers 8 and 11 are arranged in front of respective earthing devices, and a seedling vibration device 15 applying the vibration to a seedling raising box A being carried to below the first earthing device 3 is provided. As the seedling raising box vibrates in the earthing, a bridge is hardly arisen at an input part of a seedling chamber and culturing soil can surely be supplied to every seedling chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling machine for a seedling box sowing machine for continuously seeding, sowing and covering soil in each seedling room of a seedling box in which a number of seedling rooms are arranged.

[0002]

2. Description of the Related Art In a conventional seedling box seeding machine, a soil placement device, a seeding device, and a soil covering device are installed one by one in order along a transport direction, and are sequentially fed out from a rear seedling box supply device and transported. A seedling box (for example, a pot seedling box described in Japanese Patent Publication No. 57-22288) is continuously filled with soil, seeded, and covered with soil.

[0003] The seedlings grown in the nursery box are transplanted to a field using a known pot seedling transplanter described in, for example, Japanese Utility Model Publication No. 1-4977. In this transplanter, the seedlings in each seedling room are pushed out together with the root pot toward the seedling receiving arm by a pushing rod inserted from an extrusion hole on the bottom side of each seedling room, and are inverted by the seedling receiving arm and transported by the conveyor belt. Fall on,
After being fed sideways, it is further sent to the descending belt by the feed claw,
While being lowered by being sandwiched by the descending belt, it is transferred to the planting device and transplanted to the field by the planting device. If the root mortar does not have an appropriate strength during this time, the root mortar collapses and mechanical transplantation becomes impossible. Therefore, in the case of vegetables such as onions with a low rooting amount and insufficient soil embedment during the appropriate planting period,
For example, it is necessary to mix a solidifying agent, such as that described in Japanese Patent Publication No. 3-49525, into the soil of the seedling raising box to solidify the root mortar.

[0004]

In the conventional sowing machine, when cultivation mainly comprising mountain soil is used, the specific gravity of the cultivation soil is relatively large and the fluidity is good, so that the back of each seedling room at the time of soiling is used. And there is little variation in the amount of cultivation between seedling rooms. On the other hand, cultivation soil mainly composed of peat moss (for example, peat moss 50% or more in volume) may be used for the purpose of reliably forming a stronger root mortar. The soil cultivation mainly composed of peat moss has an effect of solidifying itself by being packed in a nursery room and strengthening the root mortar, and thus has an advantage that the above-mentioned solidifying agent is not required in some cases.

However, soil cultivation mainly composed of peat moss has a low specific gravity, and when soil is laid by a conventional sowing machine, there is a problem that a bridging easily occurs at the entrance of a nursery room, particularly when a seedling box having a small opening area is used. there were. for that reason,
Differences in the amount of cultivated soil between each nursery, differences in the absolute amount of cultivated soil in each nursery, etc., cause differences in seedling growth, and root transplants collapsed during mechanical transplantation, resulting in poor planting There was a problem of doing. The present invention has been made in view of the above problems,
It is an object of the present invention to obtain a seedling device for a seedling box seeder capable of securing a required amount of cultivation in each seedling room and reducing the difference in the amount between each seedling room even when cultivation with low specific gravity is used.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a seedling box in which a large number of seedling rooms are arranged is transported in one direction, and the seedling box is seeded and seeded and covered with soil continuously. The machine is characterized in that a plurality of soiling devices are arranged along the transport direction, and a pressure-reducing roller is arranged in front of each soiling device. In this seedling box sowing machine, it is desirable to install a seedling box vibration device that applies vibration to the seedling box being transported during soiling (particularly at the first soiling). Examples of the seedling box vibration device include, for example, an eccentric shaft roller rotatably installed at a position below the conveyed seedling box, and an eccentric shaft roller installed between the eccentric shaft roller and the seedling box as the eccentric shaft roller rotates. A vibrating plate that vibrates up and down, and the vibrating plate vibrates the seedling raising box at the time of soiling. Further, the seedling box vibration device can also be applied to a seedling box seeder having only one soiling device.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A seedling box seeder according to the present invention will be described more specifically with reference to FIGS. The seedling box seeder shown in FIG. 1 includes a seedling box feeding device 2, a first soiling device 3, a second soiling device 4,
The seeding device 5 and the soil covering device 6 are sequentially installed along the transport direction (arrow a) of the seedling raising box A. Also, a scraper 7 is provided below the first soiling device 3, and a pressure reducing roller 8 is provided in front of the scraper 7.
A scraper 9 is provided below the second soiling device 4, a pressure-reducing roller 11 is provided in front of the scraper 9, and a seed holding roller 1 is provided in front of the seeding device 5.
2. A scraper 13 is installed below the soil covering device 6, and a claw 14a is engaged with a perforation hole 18 (see FIG. 3) formed on both edges of the seedling raising box A guided on the rails 16 and 17.
Are provided at appropriate intervals. 1
Reference numeral 9 denotes a feed roller of the seedling raising box A, and reference numeral 20 denotes a feed conveyor. Among the above-mentioned devices, the seeding device 5, the pressure-reducing rollers 8, 11 and the seed holding roller 12 are driven to rotate with the transport of the seedling raising box A, and the other devices (movable parts) are driven by a motor. In addition,
Each of the above-described devices is a known device (except that two soiling devices are installed).

In the seedling box seeding machine, a seedling box vibration device 15 for applying vibration to the seedling box A at the time of soiling is provided below the first soiling device 3. As shown in FIGS. 2 and 3, the seedling box vibrating device 15 includes an eccentric shaft roller 15 a rotatably installed with its axis perpendicular to the conveying direction a of the seedling box A; A diaphragm 15b is provided between the seedling raising box A to be conveyed. The diaphragm 15b is supported at a position where the diaphragm 15b is in sliding contact with the bottom surface of the seedling raising box A conveyed by the support portions 15c and 15d, and vibrates vertically with the rotation of the eccentric shaft roller 15a (the maximum amplitude S is the magnitude of the eccentricity of the eccentric shaft. The vibration is transmitted to the seedling raising box A.

In the seedling box sowing machine, the seedling box feeding device 2 sends out seedling boxes one by one from the seedling box located at the bottom of the seedling boxes loaded in the case 2a one after another. Is continuously conveyed toward the first soiling device 3. In the first soiling device 3, cultivation is supplied from the belt conveyor 3a to the seedling box A that is continuously transported, and soil is laid.
5 applies vertical vibration. For this reason, even when cultivating soil with a low specific gravity (for example, cultivation mainly composed of peat moss), it does not cause a bridge at the entrance of the seedling room and enters deeply, increasing the amount of cultivation in each seedling room, There will be no difference in the amount of cultivated soil. Vibration to the seedling raising box A is preferably performed mainly at the supply position or immediately after the supply of the cultivation soil, and is performed in front of these devices so as not to affect the next process such as the work of cutting the scraper 7. Is desirable.

The seedling raising box A is cut by the scraper 7 after putting in the soil, and the cultivation soil in each seedling room is crushed and packed by the projections 8a of the crushing roller 8. Subsequently, the second seeding device 4 puts the seedling box A to be conveyed. By burying twice in this manner, a required amount of cultivation is secured in each nursery, and the amount of cultivation between each nursery is also substantially uniform. In addition, the components of the soil cultivation of the second soiling device and the first soiling device are changed (for example, the first soil cultivation is a component that hardly disturbs the root pot, and the second soil cultivation near the seed is a component suitable for germination). You can also.

After soiling by the second soiling device 4, slicing is performed by the scraper 9, pressure reduction by the pressure reduction roller 11 is performed, and then seeding by the seeding device 5 is performed. Positioning gears having claws 5b that engage with the feed holes 17 formed on both sides of the seedling raising box A are attached to the left and right sides of the seeding wheel 5a of the seeding device 5, and the feed holes 1 of the seedling raising box A that are continuously conveyed are attached.
7, so that the seeding wheel 5a is rotated at the same time. The seedling raising box A coming out of the seeding device 5 is crushed by the seed holding roller 12 and finally supplied with cultivation soil by the soil covering device 6, and each seedling room is covered with soil.

In the above example, no vibration was applied at the time of the second soiling. However, since the seedling room was packed with the soil at the first soiling and the suppression, the soil was shallow.
This is because bridges are unlikely to occur during the first soiling. However, when the opening area of the entrance of the nursery room is small and the bottom is deep, or particularly when cultivation that easily causes bridging is used, vibration may be appropriately applied also at the time of the second and subsequent soiling. In this case, it is desirable to make an adjustment such as reducing the amplitude so that the cultivated soil packed up to that point does not pop out. Further, in the above example, the vibration is applied at the time of the first soiling, but a great effect can be obtained by performing the soiling several times and the subsequent pressure reduction without applying the vibration. That is,
After the first soiling, crushing and filling the seedling room with cultivation soil, and then the second soiling, if the bridge is formed by the first soiling, the second soiling By the second digging, the bridge is unlikely to occur in the second digging, as described above. Therefore, compared with the conventional seedling box seeder, it is possible to reliably secure more soil in each seedling room and reduce the difference in the amount of soil between seedling rooms.

[0013]

According to the seedling raising box seeder of the present invention, a required amount of cultivation can be secured in each seedling room, and the difference in the amount of cultivation between seedling rooms can be reduced. Therefore, the growth difference of the seedlings can be eliminated, and the root pot can be prevented from collapsing during mechanical transplantation.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a seedling box seeder according to the present invention.

FIG. 2 is a front view schematically showing a part of a seedling raising box vibration device.

FIG. 3 is a side view of the same.

[Explanation of symbols]

 3, 4 Soiling device 5 Seeding device 6 Covering device 8, 11 Squeezing roller 12 Seed holding roller 15 Seedling box vibration device 15a Eccentric shaft 15b Vibration plate

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor: Masao Kusumoto 447, Shimoichi, Sanyo-cho, Akaiwa-gun, Okayama Prefecture F-term (reference) 2B027 ND03 XA04 XB02 XC02

Claims (5)

[Claims] 1. A seedling machine for seedling boxes, in which seedling boxes in which a large number of seedling rooms are arranged are transported in one direction while soiling, sowing and covering are continuously performed. A seedling box seeding machine, characterized in that a plurality of are arranged along a conveying direction, and a pressure-reducing roller is disposed in front of each soiling device. 2. A seedling box vibrating device for applying vibration to a seedling box being transported during soil placement.
A seeding machine for a nursery box described in. 3. The seedling box seeding machine according to claim 1, further comprising a seedling box vibrating device for applying vibration to the seedling box being transported during the first soiling. 4. A seedling box seeder for continuously seeding, sowing and covering soil in the seedling box while transporting the seedling box in which a number of seedling rooms are arranged in one direction. A seedling box seeder, comprising a seedling box vibration device for applying vibration to a seedling box. 5. The seedling box vibrating device includes an eccentric shaft roller rotatably installed at a position below the conveyed seedling box, and an eccentric shaft roller installed between the eccentric shaft roller and the seedling box. The seedling machine for a nursery box according to any one of claims 2 to 4, further comprising a diaphragm that vibrates up and down with rotation.