JPH01257403A - Soil-coupled seedling transplanter for multilevee use - Google Patents

Abstract

PURPOSE:To provide the title transplanter enabling a seedling feeder and a seedling selector to be set up in close proximity to each other, so designed that a tilted seedling feed conveyor and a horizontal seedling-selecting conveyor are vertically set up in two tiers, and a detector is located above the seedling- selecting conveyor belt to detect the amount of seedlings. CONSTITUTION:Seedlings P each put in a paper cylinder are arranged parallel on a tilted seedling feed conveyor 4 and carried. At the end of the conveyance, said seedlings are separated into a group of single seedling, which is loaded on a seedling-selecting belt. Defective seedlings lacking in leaves are dropped and eliminated and only acceptable seedlings reach a seedling-arranging belt 19. Signals from a non-contact detector 22 are sent onto a seedling conveyor belt 17 to detect the carrying speed of the seedlings travelling on said belt, and based on the result, seedling feed rate on the conveyor 4 is controlled.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a transplanter for transplanting soiled seedlings, such as seedlings grown in paper tubes. It is suitable.

[Prior Art] Conventionally, when seedlings grown in paper tubes or the like in a field are transplanted using a transplanter, they are usually planted in one row or two rows apart. This is a combination of a planting mechanism in which the transplanter rotates in the advancing direction and a seedling supply mechanism that extends in the horizontal direction to facilitate the supply of seedlings, so it is located in the middle when used for multi-rows of 3 or more rows. This is because the seedling supply mechanism is limited by the width of the ridge, making it impossible to obtain the required length. In order to solve this problem, in Japanese Patent Application Laid-Open No. 57-202212, the seedling supply conveyor is tilted so that the horizontal spacing is commensurate with the ridge spacing, and the seedlings are transferred from the sloped end of the conveyor to the seedling transfer conveyor tilted in the opposite direction. A transplanter is disclosed that transfers the seedlings and supplies the seedlings to a planting mechanism for transplantation.

In addition, since the seedlings in the soil after raising the seedlings include defective seedlings that do not germinate, the roots and leaves of the seedlings are supported by a pair of string-like belts, and defective seedlings without leaves are allowed to fall out of the system and separated. A seedling sorting device has been filed by the present applicant as Utility Model Application No. 117319/1982.

[Problems to be Solved by the Invention] When the seedling selection device of Utility Application No. 117319/1980 is incorporated into the multi-row transplanting machine shown in Japanese Patent Application Laid-open No. 57-202212, only selected seedlings can be transplanted into multiple rows at the same time. However, in order to create multiple rows, the seedling feeding device and the seedling sorting device must be arranged in two stages (upper and lower), and the width must match the row spacing. The supply to the sorting device must be as short as possible, and the seedling sorting device must be installed horizontally, so it is impossible to control the supply of seedlings by installing a non-contact detection device between them. be.

[Means for Solving the Problems] In order to solve the above problems, the inventors have developed an inclined seedling supply conveyor that conveys the seedlings in parallel rows, and a device in which the conveyor receives the seedlings at the conveying end and rotates horizontally in the opposite direction. Seedling sorting conveyors are provided in two stages, upper and lower. Each of the seedling sorting conveyors is composed of a string-like seedling sorting belt, a seedling conveying belt, and a seedling sorting belt in that order. By sending the seedlings onto a conveyor belt, detecting the amount of seedlings on the belt, and controlling the amount of seedlings supplied by the seedling supply belt, it was possible to smoothly supply the seedlings to the seedling planting mechanism.

[Effect]

In this invention, the seedlings with soil are conveyed side by side on a seedling supply conveyor that is tilted to an extent that the seedlings do not slip off, and are separated into individual seedlings at the end of the conveyance, and the separated seedlings are placed in the posture of the seedlings. drop a short distance without disturbing the seedlings and place them on the seedling sorting belt. At this time, defective seedlings without leaves lose their support and fall downward and are removed, and only good seedlings reach the seedling sorting belt via the seedling transport belt, but even if the distance between the seedling supply conveyor and the seedling sorting conveyor is narrow, the non-contact detection device A signal is sent to the seedling conveyor belt, and the conveyance speed of the seedlings moving on the belt is detected to know whether the seedling supply is excessive or insufficient, and the seedling supply speed of the seedling supply conveyor is controlled based on the detection result.

〔Example〕

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

In the figure, 1 indicates the machine frame, and the machine frame 1 includes the shaft 3 of the pulley 2.2'.
．． 3' is loosely inserted, and an inclined seedling supply belt 4 is passed between the pulleys 2 and 2'.The seedling supply belt 4 is usually a flat belt, and the paper tube seedlings P are placed in a row on it. and transport it in the direction of the arrow. A seedling holding ring 5 is provided above the conveying end of the seedling supply belt 4, and a seedling separation ring 6 is provided opposite the end, so that the rotation of the seedling separation wheel 6 is accelerated to separate paper tube seedlings one by one. Separate into P.

The separated paper tube seedlings P are guided by a seedling guide 7 located below the seedling separating wheel 6 and fall onto the seedling sorting device. This device consists of a string-shaped inter-plane separation belt 9.9 hung between the grooved pulleys 8 and 8', and a grooved pulley 8 and a grooved pulley 1.
A leaf support belt stretched between one root support bell eye 1 hooked between the grooved pulley 10 and the grooved pulley 8 and the grooved pulley 13 which is loosely fitted onto the shaft 12 of the grooved pulley 10. 14 and
A seedling alignment belt 16 stretched between the leaf pressing bells 5 provided in opposition on the leaf support belt 14 and the grooved bullies 10 and 10', and the grooved bullies 10' and pulleys 15'. Seedling transport belt 17 and free pulley 15 stretched between
The seedling organizing belt 19 is stretched between the pulley 18 and the pulley 18. and said belt 9.11.14
．． Numeral 17 is a string-like seedling alignment belt 16 having a considerable width, and has wing pieces 20 fixed on its upper surface at intervals that can accommodate one paper tube seedling P. It is faster than the supply belt 4. Further, a large number of the seedling organizing belts 19 are hung in the form of a string, and their circumferential speed is set to be slower than that of the seedling supply belt 4 in consideration of the appearance rate of paper tube seedlings P.

Therefore, the paper tube seedlings P separated by the seedling separation wheel 6 are placed on the root support belt 11, the leaf support belt 14, and the surface separation belt 9, but at the rotating end of the surface separation belt 9. Once reached, the healthy paper tube seedling P has its roots supported by the root support belt 11, its leaves are held between the leaf support belt 14 and the leaf pressing belt 15, and then transferred to the seedling alignment belt 16.
The defective seedlings P' without leaves are not supported by the leaf support belt 14 and fall out of the system. °The paper tube seedlings P that have reached the seedling alignment belt 16 enter between the wing pieces 20 and 20 and are aligned, and are further sent out towards the seedling conveying bell 7.Then, they move to the seedling sorting belt 19, but the seedling sorting belt 19 rotates in conjunction with the seedling planting mechanism in order to supply seedlings to the seedling planting mechanism under certain conditions, and rotates slower than the seedling transport belt 17, so that when good paper cylinder seedlings P are continuously sent, the seedling organizing belt 19 and the seedlings are Conveyor belt 17
If the top is full and clogged, and defective seedlings P' continue to occur, there will be a shortage of paper tube seedlings P on the seedling sorting belt 19. For this purpose, a reflecting mirror 21 is provided above the rear part of the seedling conveying belt 17, and a non-contact detection device 22 having a photoelectric device or the like is provided on one side facing the reflecting mirror 21, and the other side is provided on the conveying surface of the seedling conveying belt 17. to face. For example, the non-contact detection device adopts an on-delivery type, and when the paper tube seedling P is sent at a predetermined speed, the paper tube seedling P
It is preferable to disable this detection and detect when paper tube seedlings P become clogged, and this detection is performed via the reflecting mirror 21.

The above detection result is transmitted via electromagnetic clutch C etc.)17.
16.11.14.15. 9 and the speeds of the seedling supply belt 4 are controlled so that the appropriate amount of paper tube seedlings P is always supplied to the seedling arrangement belt 19.

The paper tube seedlings P arranged as described above are delivered to the seedling transfer belt 24 via the seedling pressing roll 23 provided at the upper end of the paper tube, and are supplied from the seedling transfer belt 24 to the seedling planting mechanism.

〔Effect of the invention〕

The present invention detects the amount of seedlings by disposing a non-contact detection device above the seedling conveying belt, so it does not take up much space to install.
Since the seedling feeding device and the seedling sorting device can be disposed in two stages, upper and lower, in close proximity, it is highly effective when used in a multi-row transplanter.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of the present invention, and FIG. 2 is a plan view of the seedling sorting device. 4...Seedling supply belt, 9.11.14.15.
17.19... String-like belt, 16...
- Seedling alignment belt, 22... Non-contact detection device.

Claims (1)

[Claims] 1. A slanted seedling supply conveyor that conveys soiled seedlings and a seedling sorting conveyor that conveys horizontally are arranged in two stages, upper and lower. The seedling sorting conveyor consists of a string-like seedling sorting belt, a seedling conveying belt, and a seedling organizing belt. A multi-row seedling transplanter with soil is characterized in that the amount of seedlings is detected by a non-contact detection device placed above the seedling conveyor belt.