Rice seed screening device

Abstract

The utility model relates to a rice seed screening device which comprises a main body, an inlet channel is arranged on the main body, a screening assembly located below the inlet channel is arranged in the main body, an air draft assembly and a material storage cavity are arranged in the main body, the air draft assembly is communicated with the inlet channel through an air channel, and an air inlet is formed in one side of the main body. The air inlet is communicated with the air channel through an inlet channel, the material storage cavity is located below the air draft assembly, an output device is arranged at the bottom of the material storage cavity, a material distributing piece is arranged in the inlet channel and located below the air inlet, the screening assembly comprises a first sorting mechanism and a second sorting mechanism, and the material distributing piece guides materials to the first sorting mechanism and the second sorting mechanism; a discharge port is arranged below the main body, the filter screen is arranged on the support, the storage part and the guide part are respectively arranged above and below the filter screen, and the guide part is communicated with the discharge port. Impurities can be removed in the feeding process, the two sorting mechanisms conduct screening synchronously, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice breeding, in particular to a rice seed screening device. Background Art

[0002] Rice seed screening is the key to ensuring the sowing of high-quality, high-vitality seeds. During screening, sieves of different specifications are used to remove seeds that are too large or too small. For example, the patent with announcement number CN 108080260B discloses a rice seed screening machine, in which a feeding port is provided at the top of the inner part of the box, a first guide trough is provided on the lower side of the feeding port, a vibration screening trough is provided on the lower side of the first guide trough, a second guide trough is provided on the lower side of the vibration screening trough, a screening cylinder is provided on the lower side of the second guide trough, and a rotating plate is provided on the lower side of the screening cylinder. In the above technical solution, the material is screened by the screening trough and the screening cylinder, but the material after feeding is first vibrated and screened by the vibrating screening trough. Light impurities mixed in the material are easily diffused into the box, and the light impurities are not easily removed by vibration screening. Utility Model Content

[0003] In order to solve the problems of the prior art, the utility model provides a rice seed screening device that can screen out light impurities during the feeding process and improve the screening efficiency.

[0004] The specific technical solution is as follows: A rice seed screening device comprises a main body, an entry channel is provided on the main body, a screening component is provided in the main body and is located below the entry channel, an exhaust component and a storage chamber are provided in the main body, the exhaust component is connected to the entry channel through the air duct, an air inlet is provided on one side of the main body, the air inlet is connected to the air duct through the entry channel, the storage chamber is located below the exhaust component, an output device is provided at the bottom of the storage chamber, a dividing member is provided in the entry channel, the dividing member is located below the air inlet, the screening component comprises a first sorting mechanism and a second sorting mechanism, the dividing member guides the material to the first and second sorting mechanisms, a discharge is provided below the main body, the first and second sorting mechanisms are sorting mechanisms with the same structure, comprising a bracket, a filter, a storage part and a guide part, the filter is arranged on the bracket, the storage part and the guide part are respectively arranged above and below the filter, and the guide part is connected to the discharge.

[0005] In some embodiments, the air duct includes a first channel and a second channel that are interconnected, the first channel is connected to the inlet channel, the second channel is connected to the storage chamber, and the second channel extends downward along the airflow direction to the output device.

[0006] In some embodiments, the air duct includes an air outlet channel, which is located between the material storage chamber and the exhaust assembly, and a control valve is provided in the air outlet channel.

[0007] In some embodiments, the material dividing member includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate are arranged obliquely and form an angle.

[0008] In some embodiments, the first sorting mechanism is located above the second sorting mechanism, and the first guide plate is arranged corresponding to the first sorting mechanism.

[0009] In some embodiments, a guide plate is provided between the second sorting mechanism and the main body, and the guide plate is located below the second guide plate.

[0010] In some embodiments, the filter screen is connected to the bracket via a locking member.

[0011] The technical effect of the utility model: The rice seed screening device of the utility model can remove impurities during the feeding process, and the two sorting mechanisms screen synchronously, quickly screen the seed particles, and improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a rice seed screening device according to an embodiment of the present utility model.

[0013] Figure 2 Schematic diagram of an output device according to an embodiment of the present invention.

[0014] Figure 3 It is a schematic diagram of a filter screen according to an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The essential features and advantages of the present invention are further described below with reference to examples, but the present invention is not limited to the examples listed.

[0016] like Figures 1 to 3As shown, a rice seed screening device of this embodiment includes a main body 1, which is provided with an inlet channel 11. A screening assembly 2 is provided within the main body 1 and is located below the inlet channel 11. Rice seed material enters the main body 1 through the inlet channel 11 and is screened by the screening assembly 2. The main body 1 is provided with an exhaust assembly 3 and a storage chamber 4. The exhaust assembly 3 is connected to the inlet channel 11 through an air duct 5. An air inlet 12 is provided on one side of the main body 1. The air inlet 12 is connected to the air duct 5 through the inlet channel 11. Airflow enters the main body through the air inlet 12, passes through the inlet channel 11, and carries the lightweight shell and dust contained in the material into the air duct 5, where they are then accumulated in the storage chamber 4. The storage chamber 4 is located below the exhaust assembly 3. An output device 6 is provided at the bottom of the storage chamber 4. A material separator 13 is provided in the inlet channel 11. The material separator 13 is located below the air inlet 12, and the material collides with the separator 13 when it falls. The screening assembly 2 includes a first sorting mechanism 21 and a second sorting mechanism 22. The material dividing member 13 guides the material to the first and second sorting mechanisms, so that the material can be screened respectively by the first and second sorting mechanisms, thereby improving the screening efficiency. A discharge 14 is provided below the main body 1. The first and second sorting mechanisms are sorting mechanisms with the same structure, including a bracket 23, a filter 24, a storage part 25 and a guide part 26. The filter 24 is arranged on the bracket 23. The storage part 25 and the guide part 26 are respectively arranged above and below the filter 24. The guide part 26 is connected to the discharge 14. After the material enters the sorting mechanism, the small-particle seeds are filtered by the filter 24 and enter the guide part 26. They enter the discharge 14 through the guide part 26. The large-particle seeds that cannot pass through the filter 24 enter the storage part 25 and are stored in the holding chamber 251. In the above technical solution, the light impurities mixed in the material are removed by the exhaust component 3, and then the material is screened by the screening assembly. Through the above technical solution, impurities can be removed during the feeding process, seed particles can be quickly screened, and screening efficiency can be improved.

[0017] In this embodiment, the air duct 5 includes a first channel 51 and a second channel 52 that are interconnected. The first channel 51 is connected to the inlet channel 11, and the second channel 52 is connected to the storage chamber 4. The second channel 52 extends downward along the airflow direction to the output device 6. After passing through the first channel 51, the material enters the second channel 52. An angle is formed between the first and second channels to prevent impurities from entering the second channel and then re-entering the first channel 51. Impurities can be discharged through the output device 6, which is a screw conveyor including a screw 61. The screw 61 pushes the material toward the outlet 62.

[0018] In this embodiment, the air duct 5 includes an air outlet channel 53, which is located between the storage chamber 4 and the exhaust assembly 3. A control valve 54 is provided in the air outlet channel 53, and the air flow is output through the air outlet channel 53. The control valve 54 can control the opening of the air outlet channel 53. The material dividing member 13 includes a first guide plate 131 and a second guide plate 132. The first guide plate 131 and the second guide plate 132 are arranged at an angle and form an angle, so that the materials falling on the first and second guide plates can move in different directions. The first sorting mechanism 21 is located above the second sorting mechanism 22, and the first guide plate 131 is arranged corresponding to the first sorting mechanism 21, so that the materials falling on the first guide plate 131 are directed toward the first sorting mechanism 21. A guide plate 16 is provided between the second sorting mechanism 22 and the main body 1, and the guide plate 16 is located below the second guide plate 132, so that the materials falling on the second guide plate 132 are directed toward the second sorting mechanism. The filter screen 24 is connected to the bracket 23 via a locking member 7, thereby facilitating assembly and disassembly of the filter screen 24 and the bracket 23 and convenient replacement of the filter screen. Furthermore, the filter screen 24 can be provided with a vibration motor to improve screening efficiency by vibration of the filter screen.

[0019] A rice seed screening device of this embodiment can remove impurities during the feeding process. The two sorting mechanisms perform screening synchronously, quickly screening seed particles, and improving screening efficiency.

[0020] It should be noted that the above preferred embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A rice seed screening device, comprising a main body, an inlet channel provided on the main body, and a screening assembly located below the inlet channel provided in the main body, characterized in that: An exhaust assembly and a storage chamber are provided in the main body. The exhaust assembly is connected to the entry channel through an air duct. An air inlet is provided on one side of the main body. The air inlet is connected to the air duct through the entry channel. The storage chamber is located below the exhaust assembly. An output device is provided at the bottom of the storage chamber. A dividing piece is provided in the entry channel. The dividing piece is located below the air inlet. The screening assembly includes a first sorting mechanism and a second sorting mechanism. The dividing piece guides the material to the first and second sorting mechanisms. A discharge is provided below the main body. The first and second sorting mechanisms are sorting mechanisms with the same structure, including a bracket, a filter, a storage part and a guide part. The filter is arranged on the bracket, and the storage part and the guide part are respectively arranged above and below the filter, and the guide part is connected to the discharge.

2. The rice seed screening device according to claim 1, characterized in that: The air duct includes a first channel and a second channel that are interconnected, the first channel is connected to the inlet channel, the second channel is connected to the storage chamber, and the second channel extends downward along the air flow direction to the output device.

3. The rice seed screening device according to claim 2, characterized in that: The air duct comprises an air outlet channel, the air outlet channel is located between the material storage cavity and the air exhaust component, and a control valve is provided in the air outlet channel.

4. The rice seed screening device according to claim 3, characterized in that: The material dividing member includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate are arranged obliquely and form an angle.

5. The rice seed screening device according to claim 4, characterized in that: The first sorting mechanism is located above the second sorting mechanism, and the first guide plate is arranged corresponding to the first sorting mechanism.

6. The rice seed screening device according to claim 5, characterized in that: A guide plate is provided between the second sorting mechanism and the main body, and the guide plate is located below the second guide plate.

7. The rice seed screening device according to claim 1, characterized in that: The filter screen is connected to the bracket via a locking piece.

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