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Longitudinal precise seedling conveying device and method

A seedling feeding and longitudinal technology, applied in the field of seedling feeding technology, can solve the problems of inaccurate positioning of the limit rod, poor adaptability of the seedling tray, inability to effectively clamp the bottom of the seedling tray, etc., and achieve the effect of convenient operation and simple structure.

Active Publication Date: 2020-04-24
NANJING AGRI MECHANIZATION INST MIN OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Problem 1 in the prior art: Since the limit rods are arranged in a fixed parallel manner, at the connection between the first seedling tray and the second seedling tray, the positioning of the limit rods will be inaccurate due to a sudden change in the center distance, resulting in the second The first seedling tray is arched and the seedlings in the hole tray cannot be effectively transferred, or the second seedling tray floats on the limit rod and cannot be effectively locked at the bottom of the seedling tray to achieve accurate transfer of seedlings. Automatic transplanting and accurate seedling transplanting operations are difficult to achieve.
Problem 2: When the transfer distance of different seedling trays changes, it is usually impossible to adjust the parameters of the seedling delivery device in time, and the entire chain drive system needs to be replaced, which has poor adaptability to different specifications of seedling trays

Method used

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  • Longitudinal precise seedling conveying device and method
  • Longitudinal precise seedling conveying device and method
  • Longitudinal precise seedling conveying device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: Seedling delivery device

[0024] A vertical precision seedling delivery device, such as figure 1 or figure 2 As shown, it includes: adjusting screw 1, nut 2, limit rod 3, compression spring 4, mounting disc 5, bolt 6, cross slider 7. The structure of the cross slider 7 is as image 3 shown.

[0025] The limit rod 3 is fixedly connected to the round hole of the cross slider 7 through the bolt 6, and the cross slider 7 is slidably connected in the guide groove of the installation disc 5. The cylindrical convex end of the cross slider 7 is covered with a compression spring 4, and the compression spring 4 Installed in the guide groove; the flat end of the cross slider 7 is engaged with the adjustment screw 1; when the adjustment screw 1 is tightened downward, the screw 1 acts on the flat end of the cross slider 7, and the linkage limit rod 3 moves downward radially When the adjusting screw 1 is loosened, the limit rod moves upward in the radial directi...

Embodiment 2

[0027] Embodiment two: send seedling process (tomato seedling)

[0028] Process 1: Start the vertical seedling delivery device, and after the seedling raising tray 8 is fed, it moves down under the action of gravity until the lower end of the outer surface of the first row of hole pots contacts with the limit rod 3; , the vertical and precise seedling delivery device drives the seedling tray to move downward, and the transfer distance is realized by rotating the angle of the installation disc 5, which is similar to the rack and pinion mechanism; there is a triangle staggered between the adjacent limit rod 3 and the seedling tray 8 The space 9 makes the stop bar 3 better positioned at the bottom of the seedling tray 8;

[0029] Process 2, the installation disk 5 is rotated counterclockwise so that the limit rod 3 gradually enters the outside of the seedling tray and is positioned at the bottom of the upper groove. When the limit rod 3 reaches the bottom of the seedling tray 8 a...

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Abstract

The invention discloses a longitudinal precise seedling conveying device and method. The device comprises adjusting screws, screw nuts, limiting rods, compression springs, cross sliding blocks, and the like. By screwing up or releasing the adjusting screws, linkage limiting rods are enabled to move up and down along a radial direction, a reverse support force is provided for the limiting rods through the compression springs, and the two action forces are mutually combined to act to achieve circumferential distribution diameter adjustment of the limiting rods, so that longitudinal precise moving and conveying of pot seedlings of different specifications are achieved. By adopting the device and the method, the problems that seedlings cannot be precisely conveyed as a first row of seedlings of a float tray are hard to be conveyed into a seedling conveying device, and float trays of easily deformed materials such as a degradable material are hard to be precisely positioned or moved, can beeffectively solved, and in addition, the device is simple in structure, convenient to operate and applicable to longitudinal precise seedling conveying in transplanting of the easily deformed float trays.

Description

technical field [0001] The invention belongs to the field of agricultural transplanting machinery, and in particular relates to a technology for sending seedlings. Background technique [0002] Precise seedling delivery is to transfer the seedling tray to the transplanting site, which is the key technology to realize automatic transplanting. The automatic seedling feeding mechanism is mainly composed of two parts: horizontal seedling feeding and vertical seedling feeding. Through the cooperative transmission of these two parts, the seedling tray can achieve vertical and horizontal alternate movements, which is convenient for the manipulator to take seedlings and transplant them at the exact time and place. [0003] The prior art of vertically sending seedlings is generally controlled by an intermittent motion mechanism to convey the sprocket chain to realize the feed transfer. For example, an automatic seedling sending mechanism (CN201410480383.7) is designed to link two par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C11/02
CPCA01C11/025Y02P60/21
Inventor 胡敏娟张文毅纪要祁兵严伟夏倩倩李坤扈凯
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI
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