A seed coating device for crop seedling

By setting a pressure bar on the outside of the packaging bag opening to limit the bag opening from sagging, the problem of inconvenience in bagging during seed coating is solved, and bagging efficiency is improved.

CN224473709UActive Publication Date: 2026-07-10SHANDONG CHENGFENG SEED TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG CHENGFENG SEED TECH CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

During the seed coating process, when the operator holds the packaging bag, the opening of the bag is prone to falling downwards, causing the seeds to enter the outside of the packaging bag and affecting the bagging efficiency.

Method used

A seed coating device including a pressing device was designed. By setting a pressure bar on the outside of the packaging bag opening, the downward sag of the packaging bag opening is limited, ensuring that the seeds enter the packaging bag.

Benefits of technology

This effectively prevents seeds from escaping outside the packaging bag, thus improving bagging efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224473709U_ABST
    Figure CN224473709U_ABST
Patent Text Reader

Abstract

This utility model provides a seed coating device for crop seedling cultivation, belonging to the technical field of seed coating devices. The utility model includes a frame rod, with a mixing tank fixedly connected to the outer surface of the frame rod. A stirring rod is rotatably connected to the inner wall of the mixing tank. A servo motor is installed on one side of the bottom of the frame rod, and a pressing device is installed at the top of the output slot. This utility model, by setting up the pressing device, includes two rectangular rods, one side of which is rotatably connected to a shaft. One end of the shaft is equipped with a coil spring. When using the coating device, by pressing the bottom ends of the two pressing rods against the outer top of the packaging bag opening, the two pressing rods restrict the position of the upper bag opening outside the output slot during the seed entry process. This minimizes the risk of the lower bag opening sagging, causing the coated seeds to escape from the outside of the packaging bag, thus affecting the bagging efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of seed coating device technology, and in particular to a seed coating device for crop seedling cultivation. Background Technology

[0002] Seed coating is a modern seed processing technology. Through a coating device, a seed coating agent containing various ingredients such as insecticides, fungicides, compound fertilizers, trace elements, plant growth regulators, slow-release agents, and film-forming agents is evenly coated on the seed surface in a certain proportion, forming a smooth and firm film that improves seed quality.

[0003] When using a coating machine to coat seeds, after processing, the operator will place a packaging bag over the outside of the coating machine's output slot to allow the seeds inside the machine to enter the bag. Because the operator usually holds the bag tightly on both sides against the outer surface of the output slot, the lower opening of the bag tends to fall downwards during seed entry, causing the upper opening to detach from the outer surface of the output slot. This results in the seeds entering the outer part of the bag but not properly entering the inner part, creating inconvenience when collecting the seeds using the coating machine. Utility Model Content

[0004] The purpose of this invention is to solve the problem that when operators hold the packaging bag, they usually grip both sides of the packaging bag tightly against the outer surface of the output slot. During the process of seeds entering the packaging bag, the lower opening of the packaging bag is prone to falling downwards, causing the upper opening of the packaging bag to detach from the outer surface of the output slot. This results in the seeds entering the outer side of the packaging bag but failing to enter the inner side of the packaging bag correctly, causing inconvenience when collecting the seeds using a coating machine. Therefore, this invention provides a seed coating device for crop seedling cultivation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a seed coating device for crop seedling cultivation, comprising a frame rod, a mixing barrel fixedly connected to the outer surface of the frame rod, a stirring rod rotatably connected to the inner wall of the mixing barrel, a servo motor provided on one side of the bottom end of the frame rod, the output end of the servo motor being fixedly connected to the bottom end of the stirring rod via a coupling, a sealing plate slidably connected to one side of the mixing barrel, an output groove fixedly connected to the outer surface of the mixing barrel near the sealing plate, and a pressing device provided at the top of the output groove to restrict the position of the packaging bag outside the output groove.

[0006] Furthermore, the clamping device includes two rectangular rods, which are respectively fixed on both sides of the top end of the output groove. A shaft is rotatably connected to one side of each rectangular rod, and a coil spring is provided at one end of the shaft. The two ends of the coil spring are respectively fixedly connected to one side of the shaft and one side of the rectangular rod. A pressure rod is fixedly connected to the outer surface of the shaft, and a top rod is fixedly connected to the top end of the inner wall of the output groove.

[0007] Furthermore, an elastic rope is fixedly connected to the bottom end of the pressure rod, and the end of the elastic rope away from the pressure rod is fixedly connected to one side of the top rod.

[0008] Furthermore, a handle is fixedly connected to one end of the shaft, and the handle consists of an L-shaped rod and a cylindrical rod body.

[0009] Furthermore, a number of anti-slip ridges are fixedly connected to the end of the pressure rod away from the shaft, and the ridges are linearly distributed at the bottom end of the pressure rod.

[0010] Furthermore, an auxiliary device is provided on one side of the bottom end of the support pole. The auxiliary device includes two grooved rods and a support plate. One end of each of the two grooved rods is fixedly connected to one side of the support pole. The outer surface of each grooved rod is provided with a sliding groove. The two ends of the support plate slide on the inner wall of the sliding groove on the outer surface of the two grooved rods. The two ends of the support plate are rotatably connected to movable wheels.

[0011] Furthermore, two stop bars are fixedly connected to the top of the tray, and the two stop bars are located at the two sides of the top edge of the tray.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] In this invention, by setting up a pressing device, when using the coating device, the bottom ends of the two pressing rods are pressed against the top outside of the packaging bag opening. During the process of seeds entering the packaging bag, the two pressing rods restrict the position of the upper bag opening outside the output slot, thus minimizing the possibility of the lower bag opening falling down and causing the coated seeds to escape from the outside of the packaging bag, thereby affecting the bagging efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the support pole of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the grooved rod of this utility model;

[0017] Figure 4 This utility model Figure 3A magnified three-dimensional structural diagram of point A;

[0018] Figure 5 This is a three-dimensional structural diagram of the mixing tank of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the pressure bar of this utility model.

[0020] Legend: 1. Frame pole; 2. Clamping device; 21. Rectangular pole; 22. Shaft; 23. Coil spring; 24. Pressure rod; 25. Top rod; 26. Elastic rope; 27. Handle; 28. Protruding strip; 3. Auxiliary device; 31. Groove rod; 32. Slide groove; 33. Support plate; 34. Moving wheel; 35. Stop bar; 4. Mixing tank; 5. Servo motor; 6. Stirring rod; 7. Sealing plate; 8. Output groove. Detailed Implementation

[0021] Example 1, such as Figure 1-2 As shown, a seed coating device for crop seedling cultivation includes a frame rod 1, a mixing tank 4 fixedly connected to the outer surface of the frame rod 1, a stirring rod 6 rotatably connected to the inner wall of the mixing tank 4, a servo motor 5 provided on one side of the bottom end of the frame rod 1, the output end of the servo motor 5 being fixedly connected to the bottom end of the stirring rod 6 via a coupling, a sealing plate 7 slidably connected to one side of the mixing tank 4, an output groove 8 fixedly connected to the side of the outer surface of the mixing tank 4 near the sealing plate 7, and a pressing device 2 provided at the top of the output groove 8 to restrict the position of the packaging bag outside the output groove 8.

[0022] Reference Figure 1-6As shown in this embodiment: the pressing device 2 includes two rectangular rods 21, which are fixed to the top two sides of the output trough 8 respectively. A shaft 22 is rotatably connected to one side of the rectangular rod 21. A coil spring 23 is provided at one end of the shaft 22. The two ends of the coil spring 23 are fixedly connected to one side of the shaft 22 and one side of the rectangular rod 21 respectively. A pressure rod 24 is fixedly connected to the outer surface of the shaft 22. A top rod 25 is fixedly connected to the top of the inner wall of the output trough 8. When using the coating device, the seeds are placed inside the mixing tank 4, and then the agent is added to the mixing tank 4 according to a certain ratio. The servo motor 5 on the outer surface of the control frame 1 operates and drives the stirring rod 6 to rotate through the output end of the servo motor 5. The stirring rod 6 drives the seeds inside the mixing tank 4 to shake and disperse and fully mix with the agent. After mixing is completed, the operation of the servo motor 5 is stopped. The top of the packaging bag is then covered by holding both sides of the bag opening. Outside the output slot 8, simultaneously hold the outer sides of the shafts 22 on both sides of the output slot 8 and pull one end of the shaft 22 downwards to deform the coil spring 23, so that the bottom end of the pressure rod 24 is away from the outer surface of the top rod 25. Then place the top opening of the packaging bag above the top rod 25, release the two shafts 22, and drive the shafts 22 and pressure rod 24 to rotate in the original direction through the coil spring 23, pressing the bottom end of the pressure rod 24 against the top outside of the packaging bag opening. Then push the sealing plate 7 upward to open one side of the mixing tank 4. The coated seeds inside the mixing tank 4 will be output outward through the output slot 8 and enter the inside of the packaging bag. During the process of the seeds entering the packaging bag, the two pressure rods 24 restrict the position of the upper opening of the packaging bag outside the output slot 8, so as to avoid the lower opening of the packaging bag from falling down and causing the coated seeds to escape from the outside of the packaging bag, thus affecting the bagging efficiency.

[0023] Reference Figure 2-6 As shown in this embodiment: an elastic rope 26 is fixedly connected to the bottom end of the pressure rod 24. The end of the elastic rope 26 away from the pressure rod 24 is fixedly connected to one side of the top rod 25. When the shaft rod 22 is rotated to control the rotation of the pressure rod 24, the elastic rope 26 will be stretched. After the shaft rod 22 is released, the elastic rope 26 returns to its normal state, which can further tighten the pressure rod 24 on the outside of the top rod 25, and improve the fixing effect of the pressure rod 24 on the outside of the packaging bag opening on the output slot 8. A handle 27 is fixedly connected to one end of the shaft rod 22. The handle 27 consists of an L-shaped rod and a cylindrical rod. When the operator uses his hand to put the two sides of the packaging bag opening on the two sides of the output slot 8, he can hook his hand on the outside of the cylindrical rod at one end of the handle 27 to more easily control the rotation of the shaft rod 22 and the pressure rod 24.

[0024] Reference Figure 2-6As shown in this embodiment: a number of anti-slip ridges 28 are fixedly connected to the end of the pressure rod 24 away from the shaft 22. The ridges 28 are linearly distributed at the bottom end of the pressure rod 24. By setting the linearly arranged anti-slip ridges 28 at the bottom end of the pressure rod 24, the friction force when the pressure rod 24 presses on the outside of the packaging bag opening can be further increased, thereby improving the fixing effect of the pressure rod 24 on the packaging bag outside the output slot 8.

[0025] Reference Figure 1-5 As shown in this embodiment: an auxiliary device 3 is provided on one side of the bottom end of the support pole 1. The auxiliary device 3 includes two grooved rods 31 and a support plate 33. One end of each of the two grooved rods 31 is fixedly connected to one side of the support pole 1. A sliding groove 32 is formed on the outer surface of the grooved rod 31. The two ends of the support plate 33 slide on the inner wall of the sliding groove 32 on the outer surface of the two grooved rods 31. The two ends of the support plate 33 are rotatably connected to movable wheels 34. When using a packaging bag to hold the coated seeds output from the output slot 8, the support plate 33 can be pushed to move towards the support pole 1 and fit against one side of the support pole 1 via the movable wheels 34 at both ends. Then, the packaged seeds are placed in the packaging bag. The bottom of the bag rests on the tray 33. As the coated seeds continue to enter the bag, the tray 33 can be pushed to slowly move away from the support rod 1 at the sliding grooves 32 on the outer surface of the two groove rods 31. This makes it easier to unfold the folded part of the bag and allow the coated seeds to enter the bag more conveniently. Two stop rods 35 are fixedly connected to the top of the tray 33. The two stop rods 35 are located on the two sides of the top edge of the tray 33. By setting the stop rods 35, the position of the bottom of the bag at the top of the tray 33 can be restricted, preventing the bag from shifting or sliding during the movement of the tray 33.

[0026] Working principle: Seeds are placed inside the mixing tank 4. Then, the pesticide is added to the mixing tank 4 according to a certain ratio. The servo motor 5 on the outer surface of the control rod 1 operates, driving the stirring rod 6 to rotate via its output end. The stirring rod 6 causes the seeds inside the mixing tank 4 to shake and disperse, fully mixing with the pesticide. After mixing, the servo motor 5 is stopped. Holding both sides of the packaging bag opening, the top of the bag opening is placed over the outside of the output slot 8. Simultaneously, holding the shafts 22 on both sides of the output slot 8, one end of the shaft 22 is pulled downwards, causing the coil spring 23 to deform, moving the bottom of the pressure rod 24 away from the outer surface of the top rod 25. The top of the packaging bag is then placed above the top rod 25. The two shafts 22 are released, causing the coil spring 23 to rotate the shafts 22 and pressure rod 24 in the original direction. The bottom end of the pressure bar 24 presses against the top outer side of the packaging bag opening, pushing the tray 33 to move towards the support rod 1 via the moving wheels 34 at both ends and fit against one side of the support rod 1. The bottom end of the packaging bag rests on the tray 33. Then, the sealing plate 7 is pushed upward to open one side of the mixing tank 4. The coated seeds inside the mixing tank 4 will be output outward through the output slot 8 and enter the interior of the packaging bag. During the process of the seeds entering the packaging bag, the two pressure bars 24 restrict the position of the upper bag opening outside the output slot 8 to prevent the lower bag opening from falling down as much as possible. As the coated seeds continue to enter the packaging bag, the tray 33 can be pushed to slowly move away from the support rod 1 at the sliding groove 32 on the outer surface of the two slot rods 31, making it easier to unfold the folded part of the packaging bag.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A seed coating device for crop seedling cultivation, comprising a frame (1), characterized in that: A mixing tank (4) is fixedly connected to the outer surface of the support rod (1). A stirring rod (6) is rotatably connected to the inner wall of the mixing tank (4). A servo motor (5) is provided on one side of the bottom end of the support rod (1). The output end of the servo motor (5) is fixedly connected to the bottom end of the stirring rod (6) through a coupling. A sealing plate (7) is slidably connected to one side of the mixing tank (4). An output groove (8) is fixedly connected to the side of the outer surface of the mixing tank (4) near the sealing plate (7). A pressing device (2) is provided at the top of the output groove (8) to restrict the position of the packaging bag outside the output groove (8).

2. The seed coating device for crop seedling cultivation according to claim 1, characterized in that: The clamping device (2) includes two rectangular rods (21), which are fixed on the top two sides of the output groove (8). A shaft (22) is rotatably connected to one side of the rectangular rod (21). A coil spring (23) is provided at one end of the shaft (22). The two ends of the coil spring (23) are fixedly connected to one side of the shaft (22) and one side of the rectangular rod (21), respectively. A pressure rod (24) is fixedly connected to the outer surface of the shaft (22). A top rod (25) is fixedly connected to the top of the inner wall of the output groove (8).

3. The seed coating device for crop seedling cultivation according to claim 2, characterized in that: The bottom end of the pressure rod (24) is fixedly connected to an elastic rope (26), and the end of the elastic rope (26) away from the pressure rod (24) is fixedly connected to one side of the top rod (25).

4. The seed coating device for crop seedling cultivation according to claim 3, characterized in that: One end of the shaft (22) is fixedly connected to a handle (27), which consists of an L-shaped rod and a cylindrical rod.

5. A seed coating device for crop seedling cultivation according to claim 4, characterized in that: The end of the pressure rod (24) away from the shaft (22) is fixedly connected with several anti-slip ridges (28), which are linearly distributed at the bottom end of the pressure rod (24).

6. The seed coating device for crop seedling cultivation according to claim 5, characterized in that: An auxiliary device (3) is provided on one side of the bottom end of the support rod (1). The auxiliary device (3) includes two groove rods (31) and a support plate (33). One end of the two groove rods (31) is fixedly connected to one side of the support rod (1). The outer surface of the groove rods (31) is provided with a sliding groove (32). The two ends of the support plate (33) slide on the inner wall of the sliding groove (32) on the outer surface of the two groove rods (31).

7. A seed coating device for crop seedling cultivation according to claim 6, characterized in that: The pallet (33) is rotatably connected to two ends of a movable wheel (34).

8. A seed coating device for crop seedling cultivation according to claim 7, characterized in that: The top of the tray (33) is fixedly connected to two stop bars (35), which are located at the two sides of the top edge of the tray (33).