JPH064659Y2 - Seeder control system for seeders - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention is a cedar mulch that is attached to the rear part of the direction of travel of a rotary cultivator such as a tractor or management machine and lays a mulch film at the same time as sowing. The present invention relates to a device that controls the seeding timing.

(B) Conventional Technology A cedar mulching device for laying a mulch film simultaneously with seeding has been conventionally known. For example,
Japanese Patent Laid-Open No. 57-86205.

The cedar mulch in these conventional techniques is such that a mulch film is passed between the lower end of the seeding device and the groove making device, a lid is provided at the lower end of the sowing device, and the mulch hole of the mulch film is located at the lower end of the seeding device. At that time, the lid was opened and the seeds were dropped from the multi-hole into the field scene.

(C) Problems to be solved by the invention With such a configuration in which the mulch film is provided between the seeding device and the grooving device, there is a distance between the mulch film and the field scene at the seed drop portion. In the case of sowing only the same seed, there was no problem, but in the case of sowing different seeds, the dropping position was displaced.

That is, since the drop speed of seeds differs in size and friction depending on the type and type, the drop position differs depending on the seeds even with the same seeding device.

Therefore, the falling position of the seed may be shifted from the center of the mulch hole and the seed may be sown, and the force of the germinated seedling may be blocked by the mulch film.

(D) Means for Solving the Problem The present invention has the following configuration in view of such a point.

Providing a withdrawal speed detection device to detect the position and withdrawal speed of multi-holes of the multi-film, further provided with a seed selection switch for setting the drop time specific to the seed, withdrawal speed detected by the withdrawal speed detection device, and withdrawal speed Depending on the distance from the detection device to the seed drop position, the time t1 from when the multi-hole is detected by the pulling speed detection device to the seed drop position.
Is calculated, and the drop time t2 peculiar to the seed is set by the seed selection switch, and from both times, the delay time T for driving the feeding device to start the drop of the seed after the multi-hole detection is obtained,
The driving of the feeding device is started.

(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 an overall side view of a management machine equipped with a cedar mul, Fig. 2 is a plan view of the cedar mul, Fig. 3 is a control block diagram of a seeder mulching control device of the present invention, and Fig. 4 is the same. It is a control flow chart of the seeding control device of the devised cedar mulch.

The overall configuration will be described with reference to FIGS. 1 and 2. The mounting bracket 3 is fixed to the rear end of the beam 2 of the rotary tiller R attached to the hitch 1 of the management machine K, and the ridge forming plate 4 is fixed to the lower part of the mounting bracket 3 to fix the mounting bracket 3
A main frame 5 is fixed to the upper part of the so that its height can be adjusted.

A frame 5a is provided so as to project below the front portion of the main frame 5, and a mounting frame 6 is laterally provided at the lower end. The grooving tool supports 18, 18 and the multi-film mounting bodies 17, 17 are fitted to the mounting frame 6. The front end of the grooving device 12 is fixed to the grooving device supports 18 and 18, and the soil soil plate 13 is fixed to the rear end of the grooving device 12.

Then, a cylinder around which the multi-film 15 is wound is axially mounted on the multi-film mounting bodies 17 and 17, and the multi-film 15 is provided with multi-holes 15a, 15a ...
・ Is opened.

A supporting frame 5b is projected downward from a middle portion of the main frame 5, and a mounting frame 8 is laterally provided at a lower end of the supporting frame 5b.
7 are mounted so that the left and right positions can be adjusted by the number of rows of the multi-holes 15a, the compression roller attachments 19, 19 are inserted and inserted on both sides, and the compression roller 20 is urged downward.

The seeder 7 is composed of a hopper 7a, a feeding device 7b and a guide pipe 7c. A seed sensor 24 (Fig. 3) for detecting the presence or absence of seeds is provided in the lower part of the hopper 7a, and the feeding device 7b is driven. Drive shaft 1 is penetrated by shaft 10.
A drive motor 9 is provided on the side surface of the feeding device 7b at one end of 0 to drive the feeding devices 7b and 7b.

The drive motor 9 is composed of a pulse motor or the like, and is controlled by a controller 33 (FIG. 3) described later. Then, the support stay 34 is projected from the side surface of the feeding device 7b, and the guide shaft 11 is attached to the tip of the support stay 34.
Also, a withdrawal speed detection device 21 is attached.

The pulling-out speed detecting device 21 projects the arm to bring it into contact with the multi-film 15, and when it reaches the multi-hole 15a, it rotates to detect the position of the multi-hole and detects from the multi-hole 15a to the next multi-hole 15a. The time is detected and the withdrawal speed is detected.

However, it is necessary to measure the distance between the multi-hole 15a and the next multi-hole 15a and input it to the controller 33.

In addition, a control box 16 is provided on the upper center of the main frame 5.
Is mounted, and the controller 3 is installed in the control box 16.
3 is installed and is connected to the drive motor 9, the pulling speed detecting device 21, and the seed sensor 24, and the control box 1
An ON / OFF switch 25, an alarm device 26, a display device 35, and a seed selection switch 32 are provided on the unit 6.

Although the alarm device 26 is a lamp in this embodiment, it may be a buzzer or the like, and the display device 35 displays the alarm content, seed selection, and the like.

The seed selection switch 32 is for selecting the falling speed of the seed from the lower end of the feeding device 7b of the seeding machine 7 to the ground surface via the guide pipe 7c, and the seed size, weight, variety, shape, etc. If different, the air resistance, friction when falling in the guide pipe 7c, and the like also change, and the falling speed also changes, so this is a switch for setting the seed type.

A mounting pipe 27 is provided at the rear end of the main frame 5.
Is installed sideways, support rods 29, 29 are fitted and inserted into the mounting pipe 27, and the pressing ring 30 and the earth-covering ring 3 are attached to the ends of the support rod 29.
1 is attached.

(F) Action of the device In such a configuration, the ON / OFF switch 25 is turned on to put the cedar multi into the standby state,
Seed selection switch 3 depending on the seeds put into the hopper 7a
Operate 2 to select.

When sowing and laying a mulch film at the same time as plowing of the management machine K, the management machine K travels in the backward direction, the plowing is carried out, and then the ridges are formed by the ridge forming plate 4,
A seeding groove is formed on the ridge by the groove making device 12.

In this invention, after detecting the multi-hole in the multi-film,
After a delay time T which differs depending on the type of seed selected, the feeding device is driven to drop the seed.

That is, the control may be performed as shown in FIG. The pull-out speed detector 21 detects the pull-out speed v of the mulch film 15 and reads it into the controller 33. The distance from the pull-out speed detector 21 to the seed drop position (measured in advance) is divided by v to obtain the multi-hole. The time t1 required to reach the seed drop position after the detection is calculated, and then the seed-specific drop time t2 obtained by switching the seed selection switch 32 is read.

Further, if the seeding device is driven to start the drop of seeds T seconds after the detection of the multi-hole, it is assumed that the multi-hole and the seed drop position match, and the feeding device is driven after the detection of the multi-hole to drop the seed. The delay time T for starting

That is, since T is calculated by t1-t2, T = t1-t
2 is calculated, and when the multi-hole detecting device, that is, the pulling-out speed detecting device 21 detects the multi-hole 15a, the drive motor 9 of the feeding device is driven after a lapse of T time to drop one seed. If so, the seeding position and the multi-hole 15a will coincide.

By repeating the above, seeding is performed with the seeding position and the multi-hole always matching.

(G) Effects of the Invention With the above-described structure and operation, the present invention has the following effects.

Firstly, since the seed selection switch 32 is provided, the seeding position does not shift due to the difference in the dropping speed caused by the difference in seeds, and the seeds can be seeded accurately in the center of the multi-hole. Of.

Secondly, since the withdrawal speed detection device 21 also detects the withdrawal speed v of the mulch film 15 at the time of sowing, when the speed of the tractor, the management machine or the like becomes faster, the T time is adjusted accordingly. Since the seeds can be dropped earlier, the seeds can be surely sown at the center position of the multi-hole 15a regardless of the speed of the tractor, the management machine, or the like.

[Brief description of drawings]

FIG. 1 is an overall side view of a management machine equipped with a cedar multi, FIG. 2 is a plan view of the cedar multi, FIG. 3 is a control block diagram, and FIG. 4 is a control flow chart. T ... Delay time for driving seeding device to start dropping seeds after detecting multi-holes t1 ... Time from detection of multi-holes to seed drop position by pulling speed detection device t2 ... Fall time unique to seeds 7 ... Seeding Machine 9 ... Drive motor 15 ... Multi-film 15a ... Multi-hole 21 ... Drawing speed detection device 33 ... Controller

Claims (1)

[Scope of utility model registration request] 1. A pull-out speed detecting device for detecting the position of a multi-hole in a multi-film and a pull-out speed, and a seed selection switch for setting a drop time peculiar to a seed, and a pull-out speed detected by the pull-out speed detecting device. Based on the speed and the distance from the pulling speed detecting device to the seed dropping position, the time t1 from the detection of the multi-hole by the pulling speed detecting device to the seed dropping position is calculated, and the drop time t2 peculiar to the seed is calculated by the seed selection switch. A seeding control device for a seeder mulch, which is set and a delay time T for driving the feeding device to start dropping of seeds after detecting the multi-hole is obtained from both times and then starting driving the feeding device.