Substrate Block Seedling Separation With Push-Plate Row Handling
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Solution Overview
Problem
Existing automatic transplanting machines for substrate block seedlings face inefficiencies and high labor intensity due to manual seedling taking and separation, leading to issues like seedling injury and omission.
Innovation Solution
An automatic seedling taking and separation system comprising a seedling taking device, delivery device, and separation device, utilizing push plates, lead-screw nut mechanisms, conveyor belts, and a crank and rocker mechanism for efficient and stable seedling handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual seedling taking and throwing operations are used, then labor intensity is high and efficiency is low, but the system complexity remains simple
Solution Approach 1:
The system is divided into three functional modules: seedling taking device, seedling delivery device, and seedling separation device. Each module performs a specific operation (taking, conveying, separating) to transform the manual process into an automated sequence, thereby improving productivity while keeping each component relatively simple
Solution Approach 2:
The push plate employs a stepped reciprocating motion mechanism that dynamically adjusts its movement pattern to match the seedling taking and separation process. The lead-screw nut mechanisms convert rotational motion to linear reciprocating motion, enabling automated dynamic operation without complex control systems
2Ease of operation
If clamping or ejection methods are used for seedling taking, then seedlings can be taken from independently spaced pot bodies, but seedling injury and omission occur due to impact and packing nature
Solution Approach 1:
The push plate acts as an intermediary element that pushes seedlings from behind rather than directly clamping or ejecting them. This indirect action reduces impact force and prevents seedling injury while maintaining ease of operation
Solution Approach 2:
Instead of pulling or ejecting seedlings from the front (direct action), the system pushes them from the rear (reverse action). This inverted approach eliminates the harmful impact forces associated with traditional clamping and ejection methods
3Ease of operation
If seedling pot bodies are independently spaced apart in a tray, then individual seedling access is possible, but standing stability is poor and seedling taking effect is poor causing lodging
Solution Approach 1:
Multiple seedling pot bodies are merged into a unified substrate block structure where seedlings grow together in a compact arrangement. This merging provides mutual support and stability while the push plate can still access and push the entire block or individual sections
4Stability of the object's composition
If substrate block seedlings are used with block rule and good standing stability, then lodging after planting is prevented, but automatic taking and separation requires complex mechanisms
Solution Approach 1:
The substrate block is segmented into manageable sections that can be pushed and separated in stages. The push plate can push individual rows or sections of the block through the delivery device, breaking down the complex task of handling the entire block into simpler sequential operations
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 system enables automated seedling taking and separation, reducing labor intensity and improving efficiency while preventing seedling injury and omission, ensuring stable and reliable seedling delivery.
Implementation Method 1
a first lead-screw nut mechanism, a second lead-screw nut mechanism... the first scraper blade and the second scraper blade are separately driven by the first lead-screw nut mechanism and the second lead-screw nut mechanism to move in a reciprocating manner
Implementation Method 2
The single-seedling separation mechanism is a crank and rocker mechanism composed of a crank, a connecting rod, and a rocker... the single-seedling separation mechanism has a seedling pushing working state in which the third push plate does a linear motion and a return working state in which the third push plate does a parabolic motion
Implementation Method 3
The third conveyor belts are inclined. A third conveyor belt is placed lower if the third conveyor belt is farther from the second conveying belt
Data Source
AI summary
The automatic seedling taking and separation system includes a seedling taking device, a seedling delivery device, and two seedling separation devices; the seedling taking device conveys substrate block seedlings on a seedling tray to the seedling delivery device in rows; the seedling delivery device divides a row of substrate block seedlings into two parts and conveys the substrate block seedlings to the two seedling separation devices; and the seedling separation devices perform single-seedling separation through seedling separation mechanisms. The present disclosure can automatically take and separate vegetable substrate block seedlings, thus improving the working efficiency.