How does the vegetable transplanter complete the process of seedling removal, transportation and planting

As an important part of modern agricultural machinery, vegetable transplanters have greatly improved the efficiency and quality of vegetable planting. Its core functions include three key links: seedling picking, transportation and planting.

Seedling picking: accurate seedling picking to ensure the integrity of seedlings
Seedling picking is the first step of the vegetable transplanter and a key link to ensure the quality of transplanting. Modern vegetable transplanters usually use mechanical clamping or vacuum adsorption to complete the seedling picking action.
Mechanical clamping mostly uses two-claw, three-claw or cup-type structures to accurately clamp the seedlings in the plug tray through a mechanical arm or a connecting rod mechanism. The clamping force has been strictly designed to not only firmly grasp the seedlings, but also avoid damage to the seedling roots. The clamping action is driven by a motor, cylinder or hydraulic system to ensure smooth action and rapid response. The clamping mechanism will automatically adjust the clamping position according to the aperture of the plug tray and the size of the seedlings to improve the adaptability and accuracy of seedling picking.
Vacuum adsorption seedling picking uses negative pressure to suck up the seedlings and their nutrient soil, which is suitable for vegetable seedlings with relatively loose roots. This method uses a vacuum pump to continuously suck, combined with the design of the suction cup, to ensure that the seedling roots and nutrient soil are completely transferred. The vacuum system is equipped with a filter device to prevent soil particles from entering the pump body and improve the stability of the equipment.
Whether mechanical clamping or vacuum adsorption is used, the synchronous control of the seedling removal action is very important. The transplanter is equipped with a sensor to monitor the position of the clamp and the state of the seedlings in real time to ensure that the seedlings are completely removed without loss or damage.

Conveying link: efficient and stable seedling transportation
After the seedlings are taken, the transplanter needs to smoothly transport the seedlings to the planting position. The conveying system is usually composed of chains, tracks or rollers to ensure that the seedlings are stable and in the correct posture during the transmission process.
The chain conveying system has a simple and durable structure and is suitable for long-distance transportation. Each conveying unit is equipped with a special fixing or supporting device to prevent the seedlings from shaking or falling during transportation. Track conveying better wraps the seedlings through a flexible contact surface to reduce the shaking of the seedlings, which is suitable for vegetables with fragile roots.
The conveying process is equipped with synchronous control technology to coordinate the actions of the seedlings and the planting mechanism. The conveying speed is dynamically adjusted according to the operation speed of the plot to avoid backlog or idling. Multi-point sensors monitor the conveying status of seedlings and automatically adjust the conveying rhythm to ensure that the seedlings are accurately docked with the planting device.
In addition, the design of the conveying link focuses on preventing collisions and crushing between seedlings. Some high-end transplanters use soft coating materials and shock-absorbing devices to reduce the impact of mechanical vibration on seedlings and ensure the stability of seedling quality.

Planting link: Accurate landing promotes survival rate
Planting is the last key step of the transplanter operation, which determines the growth effect of seedlings in the field. The vegetable transplanter implants the seedlings into the soil through a mechanical arm or a propeller, and completes the soil compaction.
The planting mechanism is usually equipped with a depth adjustment device to ensure that each seedling is implanted at an appropriate depth to prevent shallow planting or too deep planting. The depth adjustment device can be realized through a mechanical knob, electric adjustment or hydraulic control to adapt to different vegetable varieties and soil conditions.
The planting action is controlled by a linkage mechanism, and the seedlings are accurately released in conjunction with the conveying system. The planting rod pushes the seedlings into the pre-loosened soil, and then the covering device fills and covers the surrounding soil to avoid root exposure. Some equipment uses rotary tillage or tine structures to loosen the soil in advance to increase the root rooting speed and survival rate.
The compaction link in the planting process is equally important. Vegetable transplanters are usually equipped with pressing wheels or pressing plates to gently compact the soil around the seedlings, improve the close contact between the soil and the root system, and promote water and nutrient absorption.
In order to ensure the uniformity and standardization of planting, advanced equipment introduces an intelligent control system to automatically detect the planting position and depth, and feedback adjustment parameters to reduce human errors.