JPH0717Y2 - Sorption roll of precision seeder - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an adsorption roll of a precision seeding machine that adsorbs seeds one by one and sows each seed in each pot.

(B) Conventional Technology It has been well known that a seeding belt is used to feed seeds one by one onto a seedling box. For example, it is disclosed in JP-A-60-33291.

(C) Problems to be solved by the device However, since the seed insertion holes of the above-mentioned seeding belt are all of a fixed size, if the type, size, shape, etc. of the seed are different, the shape suitable for the seed It was necessary to replace it with a seeding belt having a seed insertion hole.

(D) Means for Solving the Problems The present invention is configured as follows in order to solve such problems.

Nozzle guides 33, 3 on the roll shaft 5 that is installed horizontally in the hopper 10.
3, the suction roll 32 is fitted onto the outer circumference of the suction roll 32, and the suction rolls 32a, 32 are radially arranged on the outer peripheral surface of the suction roll 32 according to the shape and number of seeds.
b, 32c… Open the rows, and the nozzle guides 33, 33… and suction holes
The positions of 32a, 32b, 32c ... Rows can be relatively changed appropriately.

(E) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be described based on the structure of the embodiment shown in the accompanying drawings.

Fig. 1 is a front sectional view of a precision seeder using the suction roll of the present invention, Fig. 2 is a side sectional view of the same, Fig. 3 is a front sectional view of a pot pressing tool, and Fig. 4 is a front sectional view of a suction roll of the present invention. 5 and 5 are also side views.

The overall configuration will be described with reference to FIGS. 1 and 2. Between the front frame 1 and the rear frame 2, the swing shaft 3, the ejection pipe 4, the roll shaft 5, the support body 6, and the hopper 10 are horizontally mounted from above, and the drive motor 7 is provided on the rear surface of the front frame 1 below the roll shaft 5. A conveyor that conveys the seedling box 9 is disposed in the lower part between the front frame 1 and the rear frame 2, and the pot 8 is placed on the conveyor.
The seedling box 9 carrying the is transferred.

An arm 13 is fitted to the front end of the swing shaft 3 and fixed by a nut 19, and the upper end of the drive link 11 is pinned to the tip of the arm 13.
The drive link 11 is pivotally supported at 12, and the lower end of the drive link 11 is pivotally supported by a pin 15 projecting from a rotary plate 14 fixed to the drive shaft 7a of the drive motor 7, and is pivotally driven by the rotation of the drive motor 7. The link 11 moves up and down, and the arm 13 connected to the drive link 11 swings to drive the swing shaft.

Nozzle mounting bodies 16 are externally fitted on the swing shaft 3 between the front frame 1 and the rear frame 2, and suction nozzles 17, 17 are arranged on the nozzle mounting bodies 16 in the same number as the number of pots 8 in the width direction. Are projected downward, and the other ends of the suction nozzles 17, 17 ... Are connected to a vacuum pump.

Pipe-shaped seed drop guides 20, 20 ... Are arranged on the hopper 10 below the suction nozzles 17, 17 ,.
The lower ends of the hoses 21, 21 ... Are connected to the guide pipes 23 fixed to the pot pressing tool mounting body 22, respectively.

As shown in FIG. 3, the pot pressing tool mounting body 22 is supported by penetrating guide shafts 24 and 25, and the guide shaft 24 is provided with a constricted portion 24a at a constant interval, and the constricted portion 24a is provided with the constricted portion 24a. The detent device D fitted from the side surface of the pot pressing device mounting body 22 is configured to come into contact with the pot depressing device mounting body 22 to adjust the pitch in the width direction of the pot.
Long holes 26a, 27a are opened in the stays 26, 27 for attaching 23, and the pot pressing tool mounting body 22 is sandwiched between the stays 26, 27,
Insert the bolt 28 through the long holes 26a and 27a and use the nut 29 to stay 2.
Stay 6, by fixing 6, 27 and loosening the nut 29.
It is configured so that 6,27 can be moved to the left and right and adjusted according to the pitch in the traveling direction of the pot.

And, in the center of the pot pressing device mounting body 22, a pin cylinder
30 is erected upright, a pot pressing body 31 is fixedly attached to the tip of the piston rod 30a of the pin cylinder 30, and the piston rod 30a is extended by sending air from the compressor to the pin cylinder 30, and is placed on the pot. When the concave portion is formed and the pressure feeding of air is stopped, the pin cylinder 30 is contracted by the spring 30b.

A roll shaft 5 is horizontally installed in the hopper 10. The roll shaft 5 is composed of a pipe, and a pulley 35 is fixed to the front end of the roll shaft 5 so that power is supplied from a drive shaft 7a of a motor 7 via a belt 36. After that, the roll shaft 5 is rotated and the coupling 37 is attached to the rear end.
Via a roll pump 5, and cams 38, 39 are fixedly mounted on the roll shaft 5 so that the cams 38, 39 can come into contact with the micro switches 40, 41 attached to the rear frame 2.
Suction and suction stop are controlled by turning 0 and 41 ON and OFF.

Nozzle guides 3 are arranged on the roll shaft 5 at regular intervals.
Nozzle guide at the axis of roll shaft 5
The nozzle guides 33, 33 ... Are communicated with the nozzle guides 33, 33 ..

That is, as shown in FIGS. 4 and 5, suction holes 32a, 32a ... Are opened at regular intervals in the width direction on the outer peripheral surface of the suction roll 32, and the suction holes 32a, 32a. One end of the nozzle guide 33, 33 ... Is connected (the other end is closed),
A vacuum pump allows suction through the suction holes 32a, 32a. Further, the suction holes 32a, 32b having different shapes are formed on the outer peripheral surface of the suction roll 32 in parallel with the suction holes 32a, 32a.
, 32c, 32c are radially opened, and the suction holes 32
a, 32b, 32c, 32d ... are formed to match the shape and number of seeds to be sown. For example, 32a is for adsorbing small seeds, 32c is for adsorbing two seeds and sowing two seeds at a time, and 32d is for adsorbing large seeds.

The ejection pipe 4 is provided above the adsorption roll 32, and the seeds excessively adsorbed by directing the jet flow from the ejection holes 4a, 4a ... Opened in the ejection pipe 4 in the tangential direction of the adsorption roll 32. Can be eliminated.

(F) Action of the device With such a configuration, by rotating the suction roll 32 with respect to the roll shaft 5 and changing the position with respect to the nozzle guide 33, suction holes suitable for the shape of seeds or the number of seeds are formed. You can choose, by rotating the roll shaft 5, the hopper 10
The seeds in the inside are adsorbed one by one and rotated upward, and when the excess seeds are also adsorbed, they are blown away by the jet flow from the ejection pipe 4 and rotated upward and inherited with the adsorption nozzle 17. When reaching the section, the cam 38 turns on the micro switch 40 to stop the suction, and the seed is sucked by the suction nozzle 17.

Then, when the suction nozzle 17 swings while adsorbing the seed and is conveyed onto the seed drop guide 20, the arm 13 turns on the micro switch 42 to stop the suction of the suction nozzle 17, and the seed falls. It drops from the guide 20 onto the pot via the hose 21 and the guide pipe 23.

On the other hand, the seedling box 9 is also intermittently moved in synchronization with the rotation of the suction roll 32, and the pot pressing body 31 is a micro switch by the cam 39.
When 41 is turned on, the pin cylinder 30 is extended to form a recess on the pot.

(G) Effect of the Invention With the above-mentioned configuration and operation, the present invention has the following effects.

First, by rotating the suction roll relative to the roll axis, it is possible to select a suction hole that matches the shape of the seed on the suction roll. Therefore, it was possible to improve the seeding accuracy by eliminating the drop and excessive suction during the transportation.

Secondly, since the adsorption hole array matched to the shape of the seed is provided on the outer peripheral surface of the adsorption roll,
By simply making relative rotation, the suction holes can be easily changed according to the seeds to be sown, and it is no longer necessary to replace the suction roll or suction nozzle.

[Brief description of drawings]

Fig. 1 is a front sectional view of a precision seeder using the suction roll of the present invention, Fig. 2 is a side sectional view of the same, Fig. 3 is a front sectional view of a pot pressing tool, and Fig. 4 is a front sectional view of a suction roll of the present invention. 5 and 5 are also side views. 5 ... Roll axis 10 ... Hopper 32 ... Suction roll 32a, 32b, 32c ... Suction hole 33 ... Nozzle guide

Claims (1)

[Scope of utility model registration request] 1. A suction roll 32 is externally fitted to a roll shaft 5 extending horizontally in a hopper 10 via nozzle guides 33, 33, ... Radially on the outer peripheral surface of the suction roll 32 according to the shape and number of seeds. The suction holes 32a, 32b, 32c ...
The suction roll of the precision seeding machine is characterized in that the positions of the rows 33 and the rows of the suction holes 32a, 32b, 32c ... Can be relatively changed appropriately.