JPH0751853Y2 - Seed guide for vegetable seeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a configuration of a seed guide portion of a vacuum seeder for precisely seeding various plug trays of vegetables and the like.

(B) Conventional technology The vacuum seeder adsorbs the seeds in the seed dish to the seed guide by adsorbing the seeds in the seed dish, and from the seed guide to the pot on the plug tray, sowing the seeds on the pot.

And, even if the type of vegetable is changed, the position of the lower end of the seed guide and the relational position with the pot are always the same, and when the seeds are large, they jump out of the pot and when the seeds are light, the wind blows. There was a fear that they would be blown away by and would not enter the seeding recess.

(C) Problems to be solved by the present invention In the present invention, the lower end position of the seed guide that releases the suction state to the suction nozzle and guides the seed to the seeding recess opened by the pressure suppressor is configured by a flexible tube. By making it possible to project vertically and horizontally, in the case of small seeds such as spinach and large rolling seeds such as radish, it was configured so that seeds do not jump out from the sowing recess It is a thing.

(D) Means for Solving the Problems The object of the present invention is as described above, and the configuration for achieving the object will be described below.

A certain number of seeds in the seed dish 41 are adsorbed by the adsorption nozzle 36, the adsorption nozzle 36 in the seed adsorption state is moved to above the seed guide 39, the adsorption state is released, and the seed guide is introduced into the pot 17a of the plug tray 17. In the configuration of guiding the seeds by the 39, the seed guide 39 is configured by a flexible tube, and the lower end position of the seed guide 39 looking into the pot 17a can be adjusted vertically and horizontally.

(E) Embodiment The purpose and construction of the present invention are as described above. Next, the construction of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is a front sectional view of the seeding machine, FIG. 2 is a side sectional view showing a configuration in which the seed guide 39 can be adjusted left and right, FIG. 3 is a front sectional view of the same, and FIG. It is a front cross-sectional view of a configuration that is adjustable to.

The overall configuration will be described with reference to FIG.

As shown in FIG. 1, the seeding device of the present invention has a cover 21 disposed on the left side of a seeding frame 20 provided on a base 2b, and electromagnetic valves 22 and 23 provided on the cover 21 and a right side thereof. Supported by rod 2
4 is fixed with a fixing screw 25 whose left and right position can be adjusted.

An air cylinder 26 is erected at the tip of the support rod 24, and a compression tool attachment body 27 is fixedly provided at the tip of a piston rod 26a of the air cylinder 26. The compression tool attachment body 27 has a different compression shape. The tools 28a, 28b ... Are provided so as to be replaceable.

A switch 29 is provided at the tip of the support rod 24 to detect the most raised position of the pressure-reducing tool mounting body 27, and the seeding frame is also provided.
A switch 30 for detecting the lowest position of the compression tool mounting body 27
3, a position sensor 31 for detecting the pot 17a of the plug tray 17 placed on the seedling box 19 is provided below it.

A vertical cylinder 33 is erected on the rear side of the cover 21, a horizontal cylinder 34 is horizontally installed on an upper end of a piston rod 33a of the vertical cylinder 33, and a pickup head 35 is provided on a tip of the piston rod 34a of the horizontal cylinder 34. The head 35 is equipped with the same number of suction nozzles 36, 36 ... As the number of pots 17a, 17a.

The part of the cover that covers the vertical cylinder 33 is the display panel 8
As such, a digital meter 7 for displaying the number of planting operations is attached.

The digital meter 7 displays the number of times of operation of the present seeding device, and particularly displays the number of times of operation of a device having relatively poor durability, and the number of times of operation is integrated to facilitate confirmation of durability. is there.

Particularly, a device having low durability corresponds to a pneumatic cylinder such as the vertical cylinder 33 or the horizontal cylinder 34.

The suction nozzles 36, 36 ... Are provided with suction confirmation sensors 37, 37 ... Consisting of differential pressure detection sensors to detect whether or not seeds are suctioned.

The suction nozzles 36, 36 ... Are connected to the vacuum pump via the electromagnetic valve 22, respectively.

Switch 38 for turning on the horizontal cylinder 34 at the most contracted position
, Is provided on the horizontal cylinder 34, and the same number of seed guides 39, 39 ... As the suction nozzles 36 are provided below the suction nozzles 36, 36. It guides you to pot 17a.

A position sensor 50 for detecting the position of the pot 17 is provided below the seed guides 39, 39 ..., and is configured to stop the drive motor when the pot 17 reaches.

A switch 40 is provided at the most extended position of the horizontal cylinder 34 to detect the right end, and a seed dish 41 is disposed below the pickup head 35 at that position, and the same number as the suction nozzles 36 are provided at the center of the seed dish 41. The extraction nozzles 42, 42 ... Are erected upright, and a switch 46 is provided at the lowest position of the pickup head 35 to detect the position.

At the uppermost position of the extraction nozzle 42 and the lowermost position of the suction nozzle 36, the suction is stopped by the extraction nozzle 42 so that the seeds are attracted to the suction nozzle.
The seeds are sucked up by the 36 and handed over to the extraction nozzle 4
The lower end of 2,42 ... is the arm 43 of the rotary cylinder 43.
Abutting on the tip of a, the extraction nozzles 42, 42, ... Are moved up and down by swinging the arm 43a.

Further, a hose 44 is connected from the middle of the extraction nozzles 42, 42 ... And a differential pressure detection sensor 45 is provided in the hose 44 to detect whether or not the seeds are adsorbed by the respective extraction nozzles 42, 42. The other end of the hose 44 is connected to the vacuum pump via the electromagnetic valve 23.

The switches 29, 30, 38, 40, 46 for detecting the position, the position sensors 31, 50, the differential pressure detection sensors 37, 45, etc. are controlled by being input / output to / from a control circuit including a microcomputer. .

That is, when the automatic switch is turned on, the position sensor 31 detects the presence or absence of the pot 17a. If the position sensor 31 is not turned on, the drive motor is continuously driven and the position sensor 31 is turned on.
If so, extend the air cylinder 26 and switch 30
When reaching the lower end which is turned on, a seeding recess is formed by the pressure suppressor 28 in the center of the pot 17a. Then, when the switch 30 is turned on, the air cylinder 26 is contracted and raised.

When the switch 29 detects that the pressure suppressor 28 has reached the upper end, the position sensor 50 moves the pot to the seeding position.
It is detected whether 17a is located, and if not, the drive motor is further driven to repeat the above operation.

When it reaches the seeding position, the transport is stopped as it is and it is judged whether there is a false detection as described above, and if the seeding position is reached, the horizontal cylinder 34 is extended, and when the switch 40 at the right end is reached, the vertical cylinder 33 of the vertical cylinder 33 is extended. The solenoid is turned on and contracted, and is lowered to the switch 46 located at the lowest end, and when reaching the lowest position, suction of the suction nozzle 36 and the extraction nozzle 42 is started, and the extraction nozzle 42 is raised by the rotary cylinder 43. Of.

At this time, the extraction nozzle 42 detects whether or not the seed is adsorbed by the differential pressure detection sensor 45, and if not adsorbed, it is lowered again and the number of times of raising and lowering can be arbitrarily set by rotating the dial. is there.

When the extraction nozzle 42 adsorbs the seed and reaches the upper end, the suction of the extraction nozzle 42 is stopped to adsorb the seed to the adsorption nozzle 36,
At this time, if the adsorption confirmation sensor 37 detects that the seeds are not adsorbed, the extraction nozzle 42 is moved up and down to adsorb the seeds as described above.

The above is repeated to form the seeding recess by the pressure suppressor 28, and the seed is dropped into the seeding recess from the suction nozzle 36 to perform seeding.

With the above-mentioned structure, the present invention is particularly suitable for the suction nozzle 36.
Is related to the configuration of the seed guide 39 arranged in the lower part of the seed guide 39, a reflector 39b made of a pin or the like is provided in the guide body 39a at the lower end of the seed guide 39, and the seed is directly reflected without falling onto the sowing soil. The body 39b is rebounded to reduce the falling speed, and is configured so as not to rebound in the concave portion of the sowing soil and jump out to the outside.

Further, as shown in FIGS. 2, 3 and 4, the present invention allows the lower end of the seed guide 39 to be adjusted in position.

That is, the configuration is such that the pot 17a is configured in the plug tray 17 fitted inside the seedling box 19, and the sowing soil put into the pot 17a is opened by the pressure-reducing tool 28 so that the seeding recess is opened. is there.

And the seeds that have been released from the suction state from the suction nozzle 36 fall into the seeding recess, but if the position of the lower end of the seed guide 39 and the interval and position of the pot 17a are the same, the seeds jump out from the seeding recess. Alternatively, some seeds will be seeded on the side wall of the seeding recess.

In the present invention, the seed guide 39 can be adjusted to the front, rear, left and right so that optimum seeding can be performed for each seed at all times.

As a structure for this purpose, the seed guide 39 is a transparent flexible cylinder made of a synthetic resin material or the like, the left and right adjusting screw shafts 1 are provided at the lower ends thereof, and the vertical adjusting screw shafts 5 are provided at both ends thereof.

That is, the left-right adjusting female screw body 9 is fitted into the left-right adjusting screw shaft 1, and the left-right adjusting female screw body 9 is rotated slightly by rotating the left-right adjusting screw shaft 1.

The bearing body 4 supporting the left-right adjusting screw shaft 1 is fitted in the slide guide rail 2, and the vertical adjusting screw shaft 5 is finely moved up and down by rotating the vertical adjusting cylindrical screw body 6. The bearing body 4 is moved up and down as shown in FIG. Reference numeral 3 denotes a bolt that is fixed to the slide body in the slide guide rail of the bearing body 4. When the vertical adjustment screw shaft 5 is not provided, the bolt 3 is loosened to slide the slide body, and the slide body is fixed after adjustment. It is also good.

In this way, the left-right adjusting female screw body 1 and the left-right moving female screw body 9 are slightly moved up and down by the left-right adjusting screw shaft 1 and the up-down adjusting screw shaft 5. It can be adjusted left and right.

(F) Effect of the Invention Since the present invention is configured as described above, it has the following effects.

First, when the type of vegetable is changed and the size and weight of the seeds are changed, the size of the seedling raising tray is different and the pitch and height of the seedling raising pot are different depending on the type of vegetable. At this time, if the positional relationship between the lower end of the seed guide 39 and the sowing recess is the same, the seed may roll out of the sowing recess, or conversely, it may stop at the entrance without falling into the center of the sowing recess. .

By configuring the position of the seed guide 39 to be adjustable as in the present invention, these problems can be solved.

Secondly, since the seed guide 39 is composed of a flexible tube, even if the position of the lower end is slightly moved vertically and horizontally, the seed guide 39
Can easily follow this lower end position, and
Even if it moved slightly to the left and right, the falling speed of the seed did not change so much, and the falling condition of the seed could be improved.

[Brief description of drawings]

FIG. 1 is a front sectional view of the seeding machine, FIG. 2 is a side sectional view showing a configuration in which the seed guide 39 can be adjusted left and right, FIG. 3 is a front sectional view of the same, and FIG. It is a front cross-sectional view of a configuration that is adjustable to. 17 ... Plug tray, 17a ... Pot 19 ... Seedling box, 36 ... Adsorption nozzle 37 ... Adsorption confirmation sensor, 39 ... Seed guide 41 ... Seed tray

Claims (1)

[Scope of utility model registration request] 1. A nozzle 36 for adsorbing a fixed number of seeds in a seed dish 41.
In the configuration in which the suction nozzle 36 in the seed adsorption state is moved above the seed guide 39 to release the adsorption state and the seed guide 39 guides the seed into the pot 17a of the plug tray 17, the seed guide 39 Is a flexible tube, and the lower end position of the seed guide 39 looking into the pot 17a can be adjusted vertically and horizontally.