Mechanical Sowing Machine Seed Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Pneumatic sowing machines are expensive, complex, and inefficient, with issues like uneven seed distribution, dust creation, humidity and static electricity affecting performance, and clogging of seed tubes, which lead to non-uniform sowing outcomes and high maintenance costs.
Innovation Solution
A mechanically operated sowing machine with dedicated feed means for each coulter, using mechanical solutions for seed and fertilizer transfer, eliminating the need for pneumatic systems, which includes parallel compartments and transfer means like screw conveyors to ensure consistent and accurate seed and fertilizer distribution across the working width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If pneumatic systems are used for seed and fertilizer transfer, then seed flow can be maintained over wide working widths, but the machine becomes expensive and structurally complicated
Solution Approach 1:
The machine is divided into multiple independent sowing units, each with its own mechanical feed means. Each unit operates autonomously with dedicated seed tubes and feed mechanisms, eliminating the need for complex pneumatic distribution systems while maintaining wide working width capability
Solution Approach 2:
Pneumatic seed transfer systems are replaced with mechanical feed means including augers, conveyors, and mechanical dispensing devices. This substitution eliminates complex pneumatic tubing and pressure control systems while providing reliable seed flow to each coulter
2Quantity of substance
If pneumatic systems are used for seed transfer, then seed distribution can be achieved, but seeds are distributed unevenly and accuracy decreases when containers become empty
Solution Approach 1:
The seed container system is segmented into multiple smaller containers, each serving a specific sowing unit. This segmentation ensures that no single container becomes completely empty, and each unit receives consistent seed supply through its dedicated mechanical feed means
Solution Approach 2:
The mechanical feed means are designed with automatic regulation mechanisms that maintain constant seed flow rates. These systems provide feedback control to ensure uniform seed distribution to each coulter regardless of container fill level
3Quantity of substance
If pneumatic systems are used for seed transfer, then seed flow can be maintained, but humidity and static electricity affect sowing quality
Solution Approach 1:
Pneumatic transfer systems that introduce humidity and static electricity are replaced with mechanical conveyors and augers. These mechanical systems transfer seeds through direct contact without introducing atmospheric moisture or electrostatic charges that would affect seed quality
4Quantity of substance
If pneumatic systems are used for seed transfer, then seed distribution can be achieved, but seed tubes clog frequently
Solution Approach 1:
Pneumatic seed tubes are replaced with mechanical feed means including augers and conveyors that physically transport seeds. This eliminates the clogging problems inherent in pneumatic tubes while maintaining reliable seed delivery to each coulter
Solution Approach 2:
The seed delivery system is segmented into separate mechanical feed means for each coulter, with dedicated seed tubes for each unit. This segmentation prevents clogging from propagating across the entire system and allows individual units to be serviced independently
5Quantity of substance
If pneumatic systems are used for seed transfer, then seed flow can be maintained, but large amounts of power are required
Solution Approach 1:
Energy-intensive pneumatic systems requiring large amounts of power for compression and air movement are replaced with mechanical augers and conveyors driven by efficient mechanical power transmission, significantly reducing overall power consumption
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanical sowing machine achieves uniform sowing outcomes, reduces maintenance costs, prevents clogging, and maintains accuracy regardless of seed or fertilizer container levels, while being more efficient and less prone to dust and humidity issues compared to pneumatic systems.
Implementation Method 1
a first screw conveyor (27) for transferring the seeds from the container (2) to a distribution container (26)
Implementation Method 2
a second screw conveyor (29) arranged to return the seeds from the distribution container (26) to the front container (2)
Implementation Method 3
the seeds may be directed to the seed box by way of gravity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The object of the present invention is a sowing machine (1), such a device comprising at least a seed container (2) and a sowing unit (3). This sowing unit comprises a longitudinal seed box (4) guiding the seeds by means of a feed apparatus (5) connected thereto through seed tubes to a seed coulter (6), press wheels (7), and a pulling device (8) for coupling the sowing machine to a work machine. The invention is characterised in that the seed box (4) comprises two parallel seed compartments in the direction of its longitudinal axis, a sowing compartment (9) and a return compartment (10). These are connected to each other by means of transfer openings (13) at opposite ends of the pair of elongated compartments, whereby the transfer means (14) establishing a mechanical movement on the one hand guide the seeds to the feed apparatus (5) in connection with the sowing compartment (9) and on the other hand return the seeds that have bypassed the feed apparatus to the beginning of the sowing compartment through the return compartment (10), to establish a continuous circulation in the seed box (4).