A spherical pelletized seed forming machine

Abstract

The present invention discloses a spherical pelletized seed forming machine, comprising a first and second skin pressing machines, each of which is provided with a pelletized seed filler. A seed sorting device is provided between the first and second skin pressing machines. A first conveyor belt is provided below the first and second skin pressing machines, and a compactor and a cutting device are provided above the first conveyor belt in sequence. Seeds wrapped in a lower layer of skin compacted by the first compactor and an upper layer of skin compacted by the second compactor are compacted by a compacting wheel and cut by the cutting device in sequence before entering a second conveyor belt. A rounding machine is provided below the second conveyor belt, and the rounded seeds are transported to a collection device via a third conveyor belt. The spherical pelletized seed forming machine of the present invention has a uniform coating thickness, forms a regular spherical shape, and has high pelletizing efficiency.

Description

Technical Field

[0001] The invention relates to a spherical pelletized seed forming machine and belongs to the field of agricultural machinery. Background Art

[0002] There are many advantages to pelletizing seeds, such as facilitating planting, storage, and preventing pests and rodents. The pelletizing process abroad is to first place a certain number of seeds in a container of appropriate size, mix them with a water-soluble liquid wax, and after the wax liquid is fully solidified, take out the seeds from the bundle and put them into a coating machine for multi-layer coating, so that different fillers are evenly coated on the surface of the seeds and formed into spheres at the same time. This solution has many disadvantages. For example, the pelletizing process is cumbersome and time-consuming. When pelletizing long strips of rice, regular spheres cannot be formed. These irregular spherical seeds can cause machine jams during sowing using existing seed metering devices on the market, and in severe cases, the pelletized seeds may even break. This not only increases the maintenance cost of the seed meter, but also the seeds sown into the ground after breaking, which also loses the meaning of pelleting. Moreover, the distribution of seeds in this scheme cannot be controlled artificially, resulting in some seeds having a thick coating layer and some seeds having a thin coating layer. This has a great impact on the later development of the seeds. Because in the early planting process, the seeds close to the spherical surface of the pelletized seeds will directly contact the metal and other materials of the seed meter, causing the seeds in this area to be easily excessively worn, thereby affecting the development rate. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a spherical pelletizing seed forming machine, which has a uniform coating thickness for spherical pelletized seeds, forms a regular spherical shape, and has a high pelletizing efficiency.

[0004] Technical solution: In order to solve the above technical problems, the present invention provides a spherical pelletized seed forming machine, including a first skin pressing machine and a second skin pressing machine, wherein the first skin pressing machine and the second skin pressing machine are provided with pelletized seed fillers, a seed sorting device is provided between the first skin pressing machine and the second skin pressing machine, a first conveyor belt is provided below the first skin pressing machine and the second skin pressing machine, and a compactor and a cutting device are provided in sequence above the first conveyor belt, the cutting device includes a horizontal cutting device and a vertical cutting device, the compactor is connected to the shaft of the horizontal cutting device through a connecting rod, the connecting rod is connected to the shaft through a torsion spring, and pre-pressure is provided through the torsion spring, the horizontal cutting device includes a cutting cylinder, and the cutting cylinder is provided with a plurality of annular cutters, the seeds wrapped in the lower layer of skin compacted by the first compactor and the upper layer of skin compacted by the second compactor are compacted by the compacting wheel and cut by the cutting device in turn and enter the second conveyor belt, a rounding machine is provided below the second conveyor belt, and the rounded seeds are transported to the collecting device through the third conveyor belt.

[0005] Preferably, the cutting device comprises a crank slider mechanism and a cutter, wherein the crank slider mechanism is connected to a slider, the slider is located in a guide rail, the slider is fixedly connected to the cutter, and the cutting motion is driven by the crank slider mechanism.

[0006] Preferably, the seed sorting device comprises a funnel and a seed sorter, wherein the seed sorter is provided at the mouth of the funnel, and the seeds are dropped one by one onto the lower skin through the seed sorter.

[0007] Preferably, an elastic pressing device is installed on the compacting wheel shaft, and the elastic pressing device automatically adjusts the compacting pressure of the compacting wheel.

[0008] Preferably, a seed collecting frame is provided below the third conveyor belt, and a fan device is provided in the seed collecting frame.

[0009] Beneficial effects: The spherical pelletized seed forming machine of the present invention can coat the spherical pelletized seeds with uniform thickness, forming regular spheres, and having high pelletizing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Schematic diagram of the system composition of the present invention.

[0011] In the figure: first leather pressing machine 1; second leather pressing machine 2; seed sorting device 3; filler 4; seeds 5; first conveyor belt 6; compactor 7; second conveyor belt 8; crank slider mechanism 9; cutter 10; rounding machine 11; third conveyor belt 12; connecting rod 13; horizontal cutting device 14; DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] like Figure 1 As shown, a spherical pelletized seed forming machine of the present invention includes a first skin pressing machine and a second skin pressing machine, wherein the first skin pressing machine and the second skin pressing machine are provided with pelletized seed fillers, a seed sorting device is provided between the first skin pressing machine and the second skin pressing machine, a first conveyor belt is provided below the first skin pressing machine and the second skin pressing machine, and a compactor and a cutting device are provided in sequence above the first conveyor belt, the cutting device includes a horizontal cutting device and a vertical cutting device, the compactor is connected to the shaft of the horizontal cutting device through a connecting rod, the connecting rod is connected to the shaft through a torsion spring, and pre-pressure is provided through the torsion spring, the horizontal cutting device includes a cutting cylinder, and the cutting cylinder is provided with a plurality of annular cutting knives, the seeds wrapped in the lower layer of skin compacted by the first compactor and the upper layer of skin compacted by the second compactor are compacted by the compacting wheel and cut by the cutting device in turn and enter the second conveyor belt, a rounding machine is provided below the second conveyor belt, and the rounded seeds are transported to the collecting device through the third conveyor belt.

[0014] In the present invention, the cutting device comprises a slider-crank mechanism and a cutter. The slider-crank mechanism is connected to a slider, which is located in a guide rail. The slider and cutter are fixedly connected, and the slider-crank mechanism drives the cyclical cutting motion. The seed sorting device comprises a hopper and a seed sorter. The seed sorter is located at the mouth of the hopper, and the seeds are dropped one by one onto the lower layer of skin through the seed sorter. The compacting wheel shaft is equipped with an elastic pressing device, which automatically adjusts the compacting wheel pressure.

[0015] Before entering the machine, the pelletized seed coating material of the present invention is mixed with a certain amount of water and added to a blender, so that the seed coating filler is mixed into a viscous mass. The mass filler is divided into two equal parts and added to a first skin pressing machine and a second skin pressing machine. The seeds to be coated are added to the seed meter, and the machine power is turned on. After the power is turned on, the mass filler is pressed into a skin of a certain thickness under the pressure of the first skin pressing machine and the second skin pressing machine, and falls onto the first conveyor belt. The first conveyor belt transmits the filler skin pressed out by the two skin pressing machines to the right. At this time, the filler skin is divided into an upper skin and a lower skin. At the same time, the seed meter also works at the same time, and the seeds in the hopper are regularly discharged according to a certain amount and frequency, and the seeds fall on the lower skin, and move to the right along with the lower skin. When the lower bark and the seeds on it move to a certain position, the seeds on the lower bark begin to contact the upper bark. At this point, the upper bark, under the force of gravity, spreads flat over the seeds. As the upper, lower bark, and seeds move beneath the compacting wheel, the wheel compresses the upper, lower bark, and seeds into a single, uniform layer of thickness, according to the set thickness. Since the seeds remain between the upper and lower filler bark throughout, they remain in the center after compaction by the compacting wheel. The next step in the compacting wheel is strip cutting. This process consists of a crank-rocker mechanism and a cutter. The crank-rocker mechanism operates at a set speed under program control, driving the cutter up and down at a set frequency. As the seed-seed-filler mixture, compacted by the compacting wheel, passes under the cutter, the up-and-down movement of the cutter cuts the uniformly mixed seed-filler bark into strips of fixed width. This process is automatically controlled by the program, not only automatically controlling the width of the strips but also ensuring that each cut falls between adjacent rows of seeds, thus protecting the seeds. The evenly cut filler strips are pushed onto the second conveyor belt by the first conveyor. The second conveyor belt runs slightly faster than the first, widening the distance between adjacent filler strips to prevent them from sticking and mixing during subsequent processing. Below the second conveyor belt, the filler strips are evenly and sequentially deposited between the two rounding wheels, where they are rolled into spherical seed pellets. The rounding wheels have a number of semicircular grooves on their surfaces. The number of these grooves corresponds to the number of rows of seeds the seed meter can discharge at a time, and the distance between adjacent semicircular grooves matches the distance between adjacent seeds discharged from each row. Therefore, when the rounding wheels are operating, each seed pile between each filler strip fits neatly between corresponding semicircular grooves on the rounding wheel surface. The pelletized seeds, shaped into spheres by the rounding wheels, then land on the third conveyor belt and are transported to a drying oven for drying.

[0016] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A spherical pelletized seed forming machine, characterized by: It includes a first skin pressing machine and a second skin pressing machine, wherein the first skin pressing machine and the second skin pressing machine are provided with pelletized seed fillers, a seed sorting device is provided between the first skin pressing machine and the second skin pressing machine, a first conveyor belt is provided below the first skin pressing machine and the second skin pressing machine, and a compactor and a cutting device are provided in sequence above the first conveyor belt, the cutting device includes a horizontal cutting device and a vertical cutting device, the compactor is connected to the shaft of the horizontal cutting device through a connecting rod, the connecting rod is connected to the shaft through a torsion spring, and pre-pressure is provided through the torsion spring, the horizontal cutting device includes a cutting cylinder, and the cutting cylinder is provided with a plurality of annular cutting knives, the seeds wrapped in the lower layer of skin compacted by the first compactor and the upper layer of skin compacted by the second compactor are compacted by the compacting wheel and cut by the cutting device in turn and enter the second conveyor belt, a rounding machine is provided below the second conveyor belt, and the rounded seeds are transported to the collecting device through the third conveyor belt.

2. The spherical pelletized seed forming machine according to claim 1, characterized in that: The cutting device comprises a crank slider mechanism and a cutter, wherein the crank slider mechanism is connected to a slider, the slider is located in a guide rail, the slider is fixedly connected to the cutter, and the cutting motion is driven by the crank slider mechanism.

3. The spherical pelletized seed forming machine according to claim 1, characterized in that: The seed sorting device comprises a funnel and a seed sorter. The seed sorter is arranged at the mouth of the funnel, and the seeds are dropped onto the lower skin one by one through the seed sorter.

4. The spherical pelletized seed forming machine according to claim 1, characterized in that: An elastic pressing device is installed on the compacting wheel shaft, and the elastic pressing device automatically adjusts the compacting pressure of the compacting wheel.

5. The spherical pelletized seed forming machine according to claim 1, characterized in that: A seed collecting frame is provided below the third conveyor belt, and a fan device is provided in the seed collecting frame.

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