Plug seeder

By using PTFE bushings and an integrated design in the seed tray seeder, the problem of seed roller wear has been solved, extending the equipment's lifespan, improving seeding efficiency, and reducing costs.

CN223859823UActive Publication Date: 2026-02-03DEZHOU ZHIZENG MACHINERY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520396510.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-02-03
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

The metal components of the seed-dyeing rollers in existing tray seeders are prone to wear, resulting in short stable operating cycles and limited functionality, which increases equipment and labor costs.

Method used

The machine adopts a polytetrafluoroethylene (PTFE) bushing instead of a traditional metal shaft, and integrates soil loading, leveling, hole pressing, sowing and covering. It uses a highly wear-resistant PTFE bushing as the shaft component of the seed roller, and sets up a leveling brush and a covering chamber on the machine platform.

Benefits of technology

It extended the stable operating time of the equipment, improved sowing efficiency, enabled streamlined operation, and reduced equipment maintenance and labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

A hole tray seeder comprises a main machine box, an auxiliary machine box, a machine table, a soil containing bin, a seed dibbling roller and a soil covering bin, the machine table is arranged at the top of the main machine box and the top of the auxiliary machine box, the machine table is composed of a front machine table body and a rear machine table body, conveying belts are installed on the front machine table body and the rear machine table body respectively, the soil containing bin is fixed to the feeding end of the front machine table body, and a front slicking brush and a hole pressing roller are sequentially arranged on the rear side of the soil containing bin. The seed dibbling roller and the soil covering bin are sequentially arranged on the rear machine table, the two ends of a rotating shaft of the seed dibbling roller are respectively provided with a polytetrafluoroethylene shaft sleeve, and a rear scraping brush is arranged on the machine table on the rear side of the soil covering bin. According to the utility model, the seed dibbling roller adopts the polytetrafluoroethylene shaft sleeve with high wear resistance, so that the running wear of the seed dibbling roller assembly is effectively reduced, the stable running time of the plug seeding machine is prolonged, the streamlined operation of plug seeding is realized, soil loading, scraping, hole pressing, seeding and soil covering and fertilizer loading are completed at one time, and the production efficiency is improved. The seeder has the advantages of reasonable design, high seeding efficiency and stable operation.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural planting equipment technology, specifically to a seed tray planter. Background Technology

[0002] Plug seedling technology is a modern seedling raising technology that uses lightweight, soilless substrate materials such as peat moss and vermiculite as the seedling substrate, and employs mechanized sowing to produce seedlings in one go. Plug seeders are devices that automatically sow seeds into plug trays and are now widely used in plug seeding. Hole-sowing type is a planting machine that sows seeds into holes according to a certain row spacing and hole spacing. Each hole can sow one or several seeds, respectively called single-seed precision sowing or multi-seed hole sowing. It is mainly used for inter-row crops such as corn, cotton, sugar beets, sunflowers, and beans, and is also known as an inter-row crop seeder.

[0003] The seed-spreading roller is the core component of a tray seeder. It uses a continuously rotating drum to pick up and transfer seeds to the seed trays. However, existing tray seeders use metal shafts and bushings for their seed-spreading rollers. During rotation, these metal components are prone to wear, resulting in a short stable operating cycle and frequent replacement of the shaft components. This not only increases equipment operating costs but also reduces sowing efficiency. Furthermore, most tray seeders only have simple sowing functions and require the use of other machinery such as soil-laying and covering equipment, which undoubtedly increases both equipment investment and labor costs. Utility Model Content

[0004] This invention provides a seed tray seeder to solve the problems of easy wear and tear on the metal components of the seed rollers in the prior art, which affects the stable operation of the equipment and the limited functionality.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A tray seeder includes a main unit, a secondary unit, a platform, a soil loading bin, a seed-spreading roller, and a soil-covering bin. The platform is located on top of the main unit and the secondary unit, and consists of a front platform and a rear platform. Conveyor belts are installed on the front platform and the rear platform respectively. The soil loading bin is fixed at the feed end of the front platform. A front leveling brush and a seed-pressing roller are sequentially installed on the rear side of the soil loading bin. The seed-spreading roller and the soil-covering bin are sequentially installed on the rear platform. The two ends of the rotating shaft of the seed-spreading roller are respectively equipped with polytetrafluoroethylene bushings. A rear leveling brush is installed on the platform behind the soil-covering bin.

[0007] Several casters are installed at the bottom of the main chassis and the bottom of the auxiliary chassis.

[0008] The working principle of this utility model is as follows: When the equipment is started, the seed tray moves along the conveyor belt of the front machine. The seed tray is first filled with soil at the soil filling bin. Then, when the seed tray moves to the front leveling brush, soil is brushed to fill the seed tray. Then, it moves to the pressing roller to press the holes in the seed tray to form sowing holes. Then, it is sent to the seeding roller by the rear machine conveyor belt to sow the seeds in the seed tray. Then, it is sent to the covering bin by the conveyor belt to cover the seeds with soil. Finally, the seed tray is brushed with soil at the rear leveling brush to fill the seed tray, thus forming a seed tray.

[0009] This invention uses a highly wear-resistant polytetrafluoroethylene bushing in the seed-spreading roller, which effectively reduces the wear of the seed-spreading roller assembly and extends the stable operating time of the seed tray seeder. At the same time, it realizes the streamlined operation of seed tray sowing, completing soil loading, leveling, pressing, sowing, and covering with soil and fertilizer in one go. It has the advantages of reasonable design, high sowing efficiency and stable operation. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the rotating structure of the seed-spreading roller of this utility model.

[0013] In the diagram, 1 is the main chassis, 2 is the auxiliary chassis, 3 is the front machine, 4 is the rear machine, 5 is the soil loading chamber, 6 is the front leveling brush, 7 is the pressing roller, 8 is the seed roller, 9 is the covering chamber, 10 is the rear leveling brush, and 11 is the PTFE bushing. Detailed Implementation

[0014] like Figure 1 and Figure 2 As shown, a tray seeder includes a main unit 1, a secondary unit 2, a machine platform, a soil loading bin 5, a seed-spreading roller 8, and a soil-covering bin 9. The machine platform is located on top of the main unit 1 and the secondary unit 2. The machine platform consists of a front machine platform 3 and a rear machine platform 4, with conveyor belts installed on both. The soil loading bin 5 is fixed to the feed end of the front machine platform 3. A front leveling brush 6 and a hole-pressing roller 7 are sequentially installed on the rear side of the soil loading bin 5. The seed-spreading roller 8 and the soil-covering bin 9 are sequentially installed on the rear machine platform 4. The two ends of the rotating shaft of the seed-spreading roller 8 are respectively equipped with polytetrafluoroethylene bushings 11. A rear leveling brush 10 is installed on the machine platform behind the soil-covering bin 9. Several casters are respectively installed at the bottom of the main unit and the bottom of the secondary unit.

[0015] The working principle of this utility model is as follows: When the equipment is started, the seed tray moves along the conveyor belt of the front machine. The seed tray is first filled with soil at the soil filling bin. Then, when the seed tray moves to the front leveling brush, soil is brushed to fill the seed tray. Then, it moves to the pressing roller to press the holes in the seed tray to form sowing holes. Then, it is sent to the seeding roller by the rear machine conveyor belt to sow the seeds in the seed tray. Then, it is sent to the covering bin by the conveyor belt to cover the seeds with soil. Finally, the seed tray is brushed with soil at the rear leveling brush to fill the seed tray, thus forming a seed tray.

Claims

1. A tray seeder, characterized by: It includes a main unit, a secondary unit, a machine platform, a soil loading bin, a seed-spreading roller, and a soil-covering bin. The machine platform is located on top of the main unit and the secondary unit. The machine platform consists of a front machine platform and a rear machine platform. Conveyor belts are installed on the front machine platform and the rear machine platform respectively. The soil loading bin is fixed at the feed end of the front machine platform. A front leveling brush and a pitting roller are installed in sequence on the rear side of the soil loading bin. The seed-spreading roller and the soil-covering bin are installed on the rear machine platform. The two ends of the rotating shaft of the seed-spreading roller are respectively equipped with polytetrafluoroethylene bushings. A rear leveling brush is installed on the machine platform behind the soil-covering bin.

2. The seed tray planter according to claim 1, characterized in that: Several casters are installed at the bottom of both the main unit chassis and the bottom of the auxiliary unit chassis.