JPH04325010A - Transplanter seedling feeding device - Google Patents

Abstract

PURPOSE:To deliver paper cylindrical seedlings without their damage by providing shafts supporting the terminal ends of a pair of seedling feed belts for transferring the paper cylindrical seedlings to an opening of a pair of rubber disks above a shaft for supporting the rubber disks. CONSTITUTION:Paper cylindrical seedlings (P) are nipped with the peripheral inner surfaces of a pair of rubber disks 12 while being nipped with seedling feed belts 13 at the transfer terminal ends of seedling feed belts. Shafts 19 for supporting the terminal ends of the seedling feed belts are located above a shaft 22 for supporting the rubber disks and delivery of the seedlings is completed before the part of the rubber disks nipping the stems of the paper cylindrical seedlings are withdrawn from the seedling feed belts.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a transplanter for transplanting seedlings grown in a nursery into a field, and is particularly applicable to paper tube seedlings and other seedlings with dirt attached to their roots.

0002

2. Description of the Related Art In order to supply seedlings to the openings of a pair of elastic disks such as rubber, a method has been adopted in which the seedlings are sandwiched between the opposing surfaces of a pair of opposing belts and transferred. Then, the direction of the stem of the seedling is transferred to the elastic disk.

0003

[Problems to be Solved by the Invention] Stems of onion seedlings and the like are relatively strong in the direction of compression, but easily break when force is applied in the direction of tension.

[0004] When the seedlings are transferred from the belt to the rubber disc, the seedlings are often transferred slanted or the stems are sagging. and,
When transferring the stem of a seedling to an elastic disk, if the stem is lowered, the elastic disk holding the stem moves away, but the belt holding the paper tube does not release the seedling and pulls the seedling and cuts it. There are cases where

[0005] Therefore, when the elastic disk starts receiving seedlings and the seedling supply belt transfers the seedlings, an interval is provided so that the two are holding the seedlings, and that part is on the side of the elastic disk that approaches the seedling supply belt. Therefore, we focused on the fact that even if the seedlings are transferred at an angle or the stems are drooping, no tensile force is applied and the seedlings are not damaged, and the present invention was developed.

[0006]

[Means for Solving the Problems] The seedling feeding device of the transplanting machine of the present invention is a transplanting device in which the ends of a pair of seedling feeding belts 13 for transferring paper tube seedlings P face the openings of a pair of rubber disks 12. In the machine, a pair of seedling supply belts 13 transport paper cylinders PC of paper cylinder seedlings P, and a pair of rubber disks 12 transport stems P of paper cylinder seedlings P.
A shaft 19 that pivotally supports the terminal end of the seedling supply belt 13 is provided above a shaft 22 that pivotally supports the rubber disk 12.

[0007]

[Function] In the present invention, a pair of seedling supply belts 13
transports the paper tube PC of the paper tube seedling P, and transfers the stem PB of the paper tube seedling P to the pair of rubber disks 12, and the shaft 19 that pivotally supports the terminal end of the seedling supply belt 13 is transferred to the rubber disk 12. Since the rubber disk is positioned above the shaft 22 that supports the rubber disk, even if the paper tube seedlings P are fed diagonally to the seedling supply belt 13 or the stem PB is hanging down, the rubber disk 1
2, that is, above the shaft 22, the paper cylinder PC of the paper cylinder seedling P is released, and the part of the rubber disk 12 that holds the stem PB of the paper cylinder seedling P is connected to the seedling supply belt. The delivery of the seedlings will be completed before we move away from 13.

[0008]

[Example] A top link pin hole 2 and a lower link pin 3 are provided at the front of the machine frame 1 for connection to a tractor (not shown), and a seat 4 for a worker to sit is provided above the machine frame 1. . Below the machine frame 1, a pressure roller 6, a rolling coulter 7, and a planting section frame 8 are arranged in series from the front, and at the rear of the machine frame 1, above the planting section frame 8 is a seedling stand on which seedlings to be transplanted are placed. 5 will be provided.

A pair of rubber disks 12 whose peripheral edges can be brought into contact with each other are provided in the planting section frame 8, and the rubber disks 12 are connected to the flange 23.
and is tightened by a pair of backing plates 25. A shaft 22 is passed through the planting section frame 8 and the flange 23, and the flange 23 is fixed to the shaft 22 with bolts 24. A pair of chain wheels 26
are fitted onto both sides of the shaft 22, and connected to the suppression rings 11 provided on both sides of the planting section frame 8 using a chain.

A pair of rubber disk pressers 14 are provided on both sides of the rubber disk 12, and the rubber disk press 14 is provided with a large number of rollers 18 that roll on the outer circumferential surface of the rubber disk 12 below the front. The rubber disk presser 14 has a pair of presser plates 15 screwed to the planting section frame 8, and a large number of presser springs 16 on the presser plate 15.
and attach pin 1 to the tip of each presser spring 16.
7 are riveted together, and a roller 18 is fitted into each pin 17 so as to rotate freely.

An opener 10 is provided below the planting section frame 8 and in front of the rubber disk 12 to open a planting groove so that the bottom surface is below the lower edge of the rubber disk 12. A pair of suppression wheels 11 are provided slightly behind the planting section frame 8, and a seedling supply section 9 is provided above the front of the planting section frame 8.

A pair of seedling supply belts 13 are arranged at the terminal end of the seedling supply section 9 in contact with each other, and a large number of elastic wings 21 are planted on the surface of the seedling supply belt 13 in parallel with the longitudinal direction of the paper tube seedlings P. Then, the terminal end of the seedling supply belt 13 is wound around a pulley 20 fitted into a pair of parallel shafts 19. pair of shafts 1
9 is provided upward from the shaft 22 which is the center of the rubber disk 12, and the difference therebetween is 22 mm in this embodiment.

Further, the uppermost roller 18 of the rubber disk presser 14 is provided above the shaft 19, and in this embodiment, the difference therebetween is 18 mm. Note that since the rubber disk presser 14 receives the paper tube seedling P horizontally and transplants it vertically to the main field, the rearmost roller 18 is placed forward of the lowermost edge of the rubber disk 12, but in this embodiment In this case, it was set to 40mm in front.

Next, the operation will be explained.

When the worker supplies paper tube seedlings P in rows to the seedling supply unit 9, they are separated one by one and placed on the opposing surfaces of a pair of seedling supply belts 13 at predetermined intervals. The paper cylinder PC is held between the stems PB and the rubber disks 12, which protrude beyond the distance between the stems PB and the rubber disks 12, and are transferred to the terminal end. Since the uppermost roller 18 is positioned higher than the shaft 19, the paper tube seedlings P at the end of the transfer of the seedling supply belt 13 are held between the seedling supply belt 13 and at the same time on the inner surface of the periphery of the pair of rubber disks 12. be caught.

At this time, since the shaft 19 that pivotally supports the end of the seedling supply belt 13 is located above the shaft 22 that pivotally supports the rubber disk 12, while both are being clamped at the same time, both clamps are The seedling supply belt 1 moves so that the
3, even if the paper tube seedling P is fed diagonally or the stem PB is hanging down, the two sandwiched parts should be closest to each other at the center of the rubber disk 12, that is, above the shaft 22. Before reaching the end of the seedling supply belt 13, the paper tube PC of the paper tube seedling P is removed.
is released, and the seedlings are delivered before the part of the rubber disk 12 that holds the stem PB of the paper tube seedling P moves away from the seedling supply belt 13.

The stem PB of the paper tube seedling P, which is held between the inner circumferential surfaces of the pair of rubber disks 12, is pushed and held by the rollers 18 that roll in contact with the outer circumferential surfaces of the rubber disks 12, and moves downward. At the end of the position of the rearmost roller 18 of the disk presser 14, the stem PB is separated and planted in the main field.

At this time, the roller 18 moves outward due to the elasticity of the presser spring 16 so as not to obstruct the passage of the stem PB of the paper tube seedling P, and holds the stem PB of the paper tube seedling P through the rubber disk 12.

[0019] The rubber disc 12 may be any elastic disc that can be bent, and it is also possible to use a hard disc on only one side, and a sponge-like substance may be glued to the part of the elastic disc that holds the seedlings. is also possible.

In the figure, 27 is a bevel gear.

[0021]

Effects of the Invention According to the present invention, the pair of seedling supply belts transport paper tubes of paper tube seedlings, the pair of rubber disks deliver the stems of the paper tube seedlings, and the terminal end of the seedling supply belt A shaft that supports the rubber disk is installed above the shaft that supports the rubber disk,
Even if the paper tube seedlings are fed diagonally to the seedling supply belt or the stems are hanging down, the paper tube seedlings will reach the end of the seedling supply belt at the center of the rubber disk, that is, above the shaft. The transfer of the seedlings is completed before the paper tube is released and the part of the rubber disk that holds the stem of the paper tube seedling moves away from the seedling supply belt, so there is a possibility that a slight force in the compression direction may be applied to the paper tube seedling. However, since no force is applied in the tensile direction, which must be avoided, the paper tube seedlings are not damaged.

[0022] Thereby, even perishable seedlings can be reliably transferred from linear motion to circular motion.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of a seedling supply device of a transplanter.

FIG. 2 is a side view of the main part of the planting part.

FIG. 3 is an enlarged view of part A in FIG. 2;

FIG. 4 is a perspective view of portion B in FIG. 2;

FIG. 5 is a sectional view taken along line CC in FIG. 2;

[Explanation of sign]

12 Rubber disc 13 Seedling supply belt 19 axis 22 axis P Paper tube seedlings PB Stem PC paper tube

Claims (1)

[Claims] Claim 1: A transplanter in which the terminal ends of a pair of seedling supply belts for transferring paper tube seedlings face the openings of a pair of rubber disks, wherein the pair of seedling supply belts transfer paper tubes of paper tube seedlings. , the stem of the paper tube seedling is passed to the pair of rubber disks,
A seedling supply device for a transplanter, in which a shaft supporting the terminal end of a seedling supply belt is positioned above a shaft supporting a rubber disk.