CN107182379A - A kind of drop formula vegetable seed seed placing device and its type of seeding - Google Patents

Abstract

The present invention provides a liquid drop type rapeseed precision sowing device and a sowing method thereof. The device includes an air pump, an air guide tube, an air bag, a feeding port, a container, a mixed liquid, an agitator, a rotating shaft, a liquid drop outlet, a pressure sensor, The control box, wherein: the air bag is placed inside the container, connected with the air pump by the air guide tube; the feeding port is on the upper part of the container, and is used to add the mixed liquid and rapeseed to the container; the specific gravity of the mixed liquid is equivalent to the specific gravity of rapeseed, The rapeseed can be evenly suspended in the liquid; the agitator is placed inside the container, and the external power is transmitted through the rotating shaft; the droplet outlet is located at the bottom of the container, and the number and distance are determined by the number and distance of rapeseed sowing rows; The pressure sensor is located inside the container, and is connected to the control box through the data line; the control box is connected to the air pump through the data line, and is used to direct the seeding device to work. The invention has simple mechanical structure, low mechanical noise and vibration, and row spacing and row number are not affected by the mechanical structure.

Description

A liquid drop type rapeseed precision sowing device and its sowing method

technical field

The invention relates to a rapeseed sowing technology, in particular to a droplet precision rapeseed sowing device and a sowing method thereof.

Background technique

As an important oil crop, rapeseed ranks first in the world in both its planting area and total output. my country's domestic demand for edible vegetable oil is increasing, and it has become the world's largest edible oil importer. Vegetable oil has become my country's largest agricultural product import item. The import dependence has exceeded 60%, and the self-sufficiency rate is less than 40%. At present, my country's rapeseed sowing is still dominated by traditional handwork, and labor costs account for 60-70% of production costs.

Nowadays, rapeseed sowing methods at home and abroad are divided into manual sowing, pneumatic mechanical sowing and volumetric mechanical sowing. Manual sowing has low efficiency, low precision, strong randomness, and non-standard planting, which is not conducive to the mechanized operation of subsequent operations. Pneumatic mechanical sowing uses pneumatic force to suck a single seed from the seed pile through the air holes on the rotating disk, and then reaches another position with the rotating disk, the suction is converted into blowing force, and the seeds fall to realize the separation of seeds; volumetric machinery Sowing is to process the corresponding container according to the shape and size of a single seed. The container can only accommodate one seed, and it rotates and moves with the mechanism. When passing through the seed pile, the single seed falls into the container and is separated with the movement of the mechanism. ; Whether it is pneumatic or volumetric mechanical sowing, one row corresponds to a set of mechanisms. The mechanism is repetitive and complicated, the machine is noisy, the maintenance of the equipment is troublesome, and the failure rate is high. Due to the small size and strong fluidity of rapeseed, the small sockets are easily blocked, resulting in a relatively high rate of missed sowing, reseeding and seed damage.

Contents of the invention

Aiming at the problems existing in the existing mechanical sowing technology and method, the object of the present invention is to provide a liquid drop type rapeseed precision sowing device and a sowing method thereof.

In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a liquid drop type rapeseed precision sowing device, which is characterized in that it includes an air pump, an air guide tube, an air bag, a feeding port, a container, a mixed solution, an agitator, and a rotating shaft , droplet outlet, pressure sensor, control box, wherein:

The air bag is placed inside the container, connected with the air pump by the air guide tube, and kept sealed with the container;

The feeding port is on the upper part of the container, and is used to add the mixed liquid and rapeseed to the container;

The specific gravity of the mixed solution is equivalent to that of the rapeseed, so that the rapeseed can be evenly suspended in the liquid;

The agitator is placed inside the container, the external power is transmitted through the rotating shaft, and is kept sealed with the container;

The droplet outlet is located at the lower part of the container, and its number and distance are determined by the number and row spacing of rapeseed sowing rows;

The pressure sensor is inside the container and is connected to the control box through a data line;

The control box is connected with the air pump through a data line, and is used to direct the seeding device to work.

Further, the mixed liquid is prepared by adding starch and water retaining agent to water, and the dosage of starch, water retaining agent and water is adjusted so that the specific gravity of the mixed liquid is equivalent to that of rapeseed, and the rapeseed can be evenly suspended in the liquid.

Further, the pore diameter of the droplet outlet is about 1.5 times the diameter of the rapeseed, and the droplet is formed at the droplet outlet by utilizing the tension of the mixed liquid and the internal pressure of the container.

Furthermore, the airbag is made of elastic material, and the volume can be changed through inflation and deflation, thereby changing the internal pressure of the container.

Further, the air bag is connected with an air pump, the air pump is connected with a control box, and the control box is connected with a pressure sensor, and the formation and fall of droplets can be controlled by setting pressure and time parameters.

Further, the agitator is made of a soft material, and is in contact with the rapeseed through the buffer of the mixed liquid, without damaging the rapeseed.

Further, a sealing cover is also included, which is used to press and seal the feeding port with the sealing cover after feeding.

Further, the control box is a PLC control box.

The present invention also provides a droplet type rapeseed precision sowing method, which adopts the above droplet type rapeseed precision sowing device, and the method includes the following steps:

Step 1. Add starch and water-retaining agent to water to make a mixed solution. Adjust the concentration of the aqueous solution. The density is roughly equal to the density of rapeseed. Add rapeseed to the liquid and stir thoroughly with a stirrer to suspend the rapeseed in the mixed solution;

Step 2, the rapeseed is mixed with the liquid in a certain proportion, so that a unit droplet contains one rapeseed;

Step 3. The aperture of the droplet outlet is about 1.5 times the diameter of the rapeseed, and a rapeseed can flow out from the aperture with the mixed liquid;

Step 4. When the tension of the mixed liquid is balanced with the internal pressure of the container, a droplet containing a rapeseed is formed at the outlet of the droplet;

Step 5. Under the control of the control box, the air pump inflates the air bag, the volume of the air bag increases, the pressure in the container is greater than the tension of the mixed liquid, and the liquid drops fall to form rapeseed seeds.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention has a simple mechanical structure and no repeating mechanism. Line spacing and number of lines are not affected by the mechanical structure.

2. The invention has little mechanical noise and vibration.

3. The additive is starch, which increases the specific gravity of the liquid, does not affect the germination of rapeseed, and is beneficial to the growth of crops as an organic fertilizer.

4. The blades of the agitator are made of rubber elastic material with a slow rotating speed and no impact on the rapeseed.

5. The rapeseed is evenly suspended in the container and flows out with the liquid out of the small hole. The rapeseed does not collide with other devices and does not damage the rapeseed.

6. Water and rapeseed are prepared in a certain ratio. When the flow rate of the liquid is constant, the corresponding amount of rapeseed is a fixed number, so as to achieve precise sowing of rapeseed.

Description of drawings

Fig. 1 is a schematic structural view of the liquid drop type rapeseed precision sowing device of the present invention.

Explanation of symbols in the accompanying drawings: 1, air pump, 2, air guide tube, 3, air bag, 4, feeding port, 5, sealing cover, 6, container, 7, mixed solution, 8, agitator, 9, rotating shaft, 10, Droplet outlet, 11, pressure sensor, 12, data line, 13, PLC control box.

detailed description

In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the examples. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

As shown in Figure 1, the droplet type rapeseed precision sowing device of the embodiment of the present invention comprises an air pump 1, an air guide tube 2, an air bag 3, a feeding port 4, a sealing cover 5, a container 6, an agitator 8, a rotating shaft 9, a liquid Drip outlet 10, pressure sensor 11, data line 12, PLC control box 13.

The air bag 3 is placed inside the container 6, and is connected with the filling and exhaust pump 1 by the air guide tube 2; it is highly sealed with the container 6; the feeding port 4 is located on the upper part of the container 6, and is pressed and sealed with the sealing cover 5 after feeding; the agitator 8 is placed Inside the container 6, external power is transmitted through the rotating shaft 9, which is highly sealed with the container 6; the droplet outlet 10 is located at the bottom of the container 6, and the number and distance thereof are determined by the number and row spacing of rapeseed sowing. The pressure sensor 11 is inside the container 6, and the internal pressure parameters of the container 6 are connected with the PLC control box 13 through the data line 12; the PLC control box 13 is connected with the filling and exhaust pump 1 by the data line, and directs the work.

The working principle of the device of the present invention: after the mixed solution 7 and rapeseed are filled into the container 6 through the feeding port 4, the sealing cover 5 is pressed tightly, and under the action of the agitator 8, the rapeseed is evenly suspended in the mixed solution 7, and the mixed solution 7 Wrapped rapeseed flows out from the droplet outlet 10 under the action of its own weight, the size of the airbag 3 is adjusted through the inflation and exhaust pump 1, the pressure on the upper part of the container 6 is changed, and the surface tension of the mixture 7 and the droplet outlet 10 interact Next, droplets are formed at the droplet outlet 10, the airbag 3 is enlarged, the pressure on the upper part of the container 6 rises, and the droplets fall.

The mixed liquid 7 is made by adding starch and water-retaining agent to water, and the amount of starch, water-retaining agent and water is adjusted so that the specific gravity of the mixed liquid 7 is equivalent to that of rapeseed, and the rapeseed can be suspended in the liquid. This is an implementation of this example. Of course, the mixed solution can also be made from other raw materials, as long as the proportion of the prepared mixed solution is equivalent to that of rapeseed, and it does not contain substances that affect the germination or growth of rapeseed. That's it.

The rapeseed particles are small (0.3-0.6mm) and can pass through the droplet outlet 10 of the small-diameter hole. The aperture of the droplet outlet 10 is about 1.5 times the diameter of the rapeseed. Droplets are formed at the droplet outlet 10 by utilizing the tension of the mixed liquid 7 and the internal pressure of the container.

The airbag 3 is made of elastic material, and its volume can be changed by filling and deflating. The internal pressure of the container 6 can be changed by changing the volume of the air bag 3 . The air bag 3 is connected with the air pump 1, the air pump 1 is connected with the PLC control box 13, the PLC control box 13 is connected with the pressure sensor 11, and the formation and fall of droplets can be controlled by setting the pressure and time parameters.

The agitator 8 is made of a soft material, and is in contact with the rapeseed through the buffer of the mixed liquid 7, without damaging the seeds.

The characteristics of the patent of the present invention also include:

1. The rapeseed flows freely in the container 6, without the need for many seeding mechanisms, and the structure is simple;

2. The sowing row spacing can be based on the sowing specifications and will not be affected by the organization;

3. The sowing distance can be changed through the time parameter setting of the PLC control box 13, and will not be affected by the mechanism;

4. The seeding device does not have many moving parts, with little mechanical wear and low noise;

5. Control the content of rapeseed particles by controlling the size of the droplets to achieve precise sowing.

This embodiment also provides a precision sowing method using the liquid drop type rapeseed precision sowing device of the present invention, said method comprising the following steps:

Step 1. Add starch and water-retaining agent to water to make a mixed solution 7. Adjust the concentration of the aqueous solution. The density is roughly equal to the density of rapeseed. Add rapeseed to the liquid and stir fully with the agitator 8 to suspend the rapeseed in the mixed solution 7. middle;

Step 2, the rapeseed is mixed with the liquid in a certain proportion, so that a unit droplet contains one rapeseed;

Step 3, the aperture of the droplet outlet 10 is about 1.5 times the diameter of the rapeseed, and a rapeseed can flow out from the aperture along with the mixed liquid 7;

Step 4. When the tension of the mixed liquid 7 is balanced with the internal pressure of the container 6, a droplet containing a rapeseed is formed at the droplet outlet 10;

Step 5. Under the control of the PLC control box 13, the air pump 1 inflates the air bag 3, the volume of the air bag 3 increases, the pressure in the container 6 is greater than the tension of the mixed liquid 7, and the liquid drops fall to form rapeseed seeds.

It should be understood that the parts not described in detail in this specification belong to the prior art.

It should be understood that the above-mentioned descriptions for the preferred embodiments are relatively detailed, and should not therefore be considered as limiting the scope of the patent protection of the present invention. Within the scope of protection, replacements or modifications can also be made, all of which fall within the protection scope of the present invention, and the scope of protection of the present invention should be based on the appended claims.

Claims (9)

1. a kind of drop formula vegetable seed seed placing device, it is characterised in that including air pump (1), airway tube (2), air bag (3) plus Material mouth (4), container (6), mixed liquor (7), agitator (8), rotating shaft (9), drop outlets (10), pressure sensor (11), control Case (13), wherein：

The air bag (3) is placed in container (6) inside, is coupled by airway tube (2) with air pump (1), and keeps sealing with container (6)；

The charge door (4) is in container (6) top, for adding mixed liquor (7) and vegetable seed into container (6)；

The proportion of the mixed liquor (7) is suitable with vegetable seed proportion, enables vegetable seed even suspension in a liquid；

The agitator (8) is placed in container (6) inside, and external impetus is transmitted by rotating shaft (9), keeps sealing with container (6)；

The drop outlets (10) are in container (6) bottom, and its number and distance are determined by vegetable seed sowing line number and line-spacing；

The pressure sensor (11) is in container (6) inside, is coupled by data wire (12) with control cabinet (13)；

The control cabinet (13) is coupled by data wire with air pump (1), for commanding seeding apparatus to be operated.

2. drop formula vegetable seed seed placing device as claimed in claim 1, it is characterised in that the mixed liquor (7) by starch, Water-loss reducer is added to the water and is made, and the consumption of regulation starch, water-loss reducer and water, the proportion and vegetable seed for making mixed liquor (7) compares heavy phase When vegetable seed energy even suspension is in a liquid.

3. drop formula vegetable seed seed placing device as claimed in claim 1, it is characterised in that the hole of the drop outlets (10) Footpath is 1.5 times of vegetable seed diameter or so, using the tension force and container internal pressure of mixed liquor (7) in drop outlets (10) formation liquid Drop.

4. drop formula vegetable seed seed placing device as claimed in claim 1, it is characterised in that the air bag (3) is by elastic material Material is caused, and can be changed volume by charge, exhaust and then be changed container (6) internal pressure.

5. drop formula vegetable seed seed placing device as claimed in claim 1, it is characterised in that the air bag (3) and air pump (1) Connection, air pump (1) couples with control cabinet (13), and control cabinet (13) couples with pressure sensor (11), by setting pressure, time Parameter is with regard to that can control the formation of drop and fall.

6. the drop formula vegetable seed seed placing device as described in any one of Claims 1 to 5, it is characterised in that the agitator (8) soft material is used, and is contacted by mixed liquor (7) buffering with vegetable seed, to vegetable seed not damaged.

7. the drop formula vegetable seed seed placing device as described in any one of Claims 1 to 5, it is characterised in that also close including one Cover (5), for carrying out compression sealing with closure (5) after charging to charge door (4).

8. the drop formula vegetable seed seed placing device as described in any one of Claims 1 to 5, it is characterised in that the control cabinet (13) it is PLC control cabinet.

9. a kind of drop formula vegetable seed precision drilling method, is measured using the drop formula vegetable seed essence as described in any one of claim 1~8 Seeding apparatus, methods described comprises the following steps：

Step 1, starch, water-loss reducer be added to the water, mixed liquor (7) is made, concentration of aqueous solution is adjusted, density is substantially close with vegetable seed Degree is equal, and vegetable seed is added in liquid, is sufficiently stirred for using agitator (8), vegetable seed is suspended in mixed liquor (7)；

Step 2, vegetable seed are mixed by a certain percentage with liquid, are made in unit drop containing a vegetable seed；

Step 3, drop outlets (10) aperture are 1.5 times of vegetable seed diameter or so, can with mixed liquor (7) from aperture flow out a dish Seed；

Step 4, when mixed liquor (7) tension force is balanced with container (6) internal pressure, drop outlets (10) place formed include one The drop of vegetable seed；

Step 5, under the control of control cabinet (13), air pump (1) gives air bag (3) inflation, air bag (3) volume increase, in container (6) Pressure is more than mixed liquor (7) tension force, and drop falls, and forms vegetable seed live.