Screening device for sunflower production

Abstract

The utility model relates to the technical field of seed screening equipment, in particular to a screening device for sunflower production, which comprises a base, a blanking hopper is fixedly connected above the base through a support rod, a screening mechanism is arranged on the base and positioned below the blanking hopper, the screening mechanism comprises a vibration support, and the lower end of the vibration support is fixedly connected with the base. The upper end of the vibration support is fixedly connected with the rack, vibration motors are installed on the two side faces of the lower end of the rack, a first sieve plate, a second sieve plate and an impurity guide plate are sequentially arranged in the rack from top to bottom, quick-release assemblies are arranged on the two outer side faces of the rack, and the first sieve plate and the second sieve plate are fixed to the rack through the quick-release assemblies. By arranging the quick release assembly, the first sieve plate or the second sieve plate can be replaced more quickly and conveniently compared with the traditional mode of replacing the sieve net by detaching bolts.

Description

A screening device for sunflower production Technical Field

[0001] This utility model relates to the technical field of seed screening equipment, specifically a screening device for sunflower production. Background Technology

[0002] In autumn, after the sunflowers are harvested, the seeds must be separated from the sunflower heads. However, the threshed seeds often contain a lot of impurities, which requires the use of screening equipment for fine impurity removal.

[0003] Currently, most screening equipment on the market uses bolts to secure the screen to the frame. However, when the screen is damaged or needs to be replaced with a different model, the operator must manually use a wrench to loosen the bolts one by one, remove the old screen, install the new screen, and then retighten the bolts. This process is not only time-consuming and laborious but also inconvenient. Summary of the Invention

[0004] This utility model provides a screening device for sunflower production to solve the problems mentioned in the background art, such as the time-consuming and labor-intensive process of replacing screens and the inconvenience of operation in existing screening equipment.

[0005] To address the existing problems, this utility model provides a screening device for sunflower production, including a base, a hopper fixedly connected to the base via a support rod, a screening mechanism located below the hopper, a vibration support fixedly connected to the base at its lower end, a vibrating support fixedly connected to the upper end of the vibrating support and a frame, a vibration motor mounted on both sides of the lower end of the frame, a first screen plate, a second screen plate, and an impurity guide plate arranged sequentially from top to bottom inside the frame, quick-release components provided on both outer sides of the frame, and the first screen plate and the second screen plate fixed to the frame via the quick-release components;

[0006] The quick-release assembly includes a limiting cylinder fixedly mounted on the outer side of the frame. A locking rod is slidably connected to the limiting cylinder. A pull rod is fixedly connected to the side of the locking rod. A limiting ring is rotatably connected to the pull rod on the side away from the outer side of the frame. A limiting cover is rotatably connected to the end of the limiting cylinder away from the outer side of the frame. A spring is sleeved on the locking rod between the limiting ring and the limiting cover. The two ends of the spring are fixedly connected to the limiting ring and the limiting cover, respectively. An L-shaped limiting groove and a U-shaped groove are respectively opened on the cylinder wall of the limiting cylinder. The L-shaped limiting groove and the U-shaped groove are connected by a strip-shaped through groove. A first through hole is opened at the center of the limiting cover for one end of the locking rod to pass through.

[0007] Furthermore, a second through hole is provided on the side wall of the frame for the other end of the locking rod to pass through.

[0008] Furthermore, the first and second sieve plates are provided with a third and a fourth through hole coaxial with the second through hole at their side ends, and the other end of the locking rod can be inserted into the third and fourth through holes.

[0009] Furthermore, two support bars are provided on the inner wall of the frame from top to bottom to support the first screen plate and the second screen plate, and a stop is provided at one end of the support bar.

[0010] Furthermore, a first impurity discharge port, a discharge port, and a second impurity discharge port are respectively provided at one end of the first screen plate, the second screen plate, and the impurity guide plate, and are fixedly connected to the end of the frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting a quick-release component, allows for easy replacement of the first or second screen plate. Simply move the pull rod of the quick-release component from the L-shaped through groove to the U-shaped through groove. The pull rod will then cause one end of the locking rod to slide out from the third or fourth through hole on the side of the first or second screen plate, releasing the lock on the first or second screen plate. Then, simply pull the first or second screen plate off the support bar and insert the new screen plate. Afterward, sliding the pull rod from the U-shaped through groove to the L-shaped through groove allows one end of the locking rod to re-insert into the third or fourth through hole. At this point, the quick-release component has re-locked the newly installed first or second screen plate. This process is much faster and more convenient than the previous method of replacing the screen by removing bolts. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 is a schematic diagram of the overall structure of this utility model.

[0015] Figure 3 is a schematic diagram of the quick-release component structure of this utility model;

[0016] Figure 4 is a schematic diagram of the disassembly structure of the quick-release component of this utility model;

[0017] Figure 5 is a schematic diagram of the disassembled side wall of the frame of this utility model:

[0018] Figure 6 is a schematic diagram of the disassembled side wall of the frame of this utility model.

[0019] In the diagram: 1. Base; 2. Support rod; 3. Hopper; 4. Vibration support; 5. Frame; 501. Second through hole; 6. First screen plate; 601. Third through hole; 7. Second screen plate; 701. Fourth through hole; 8. Impurity guide plate; 9. Quick release assembly; 901. Limiting cylinder; 902. Locking rod; 903. Pull rod; 904. Limiting ring; 905. Limiting cover; 906. Spring; 907. L-shaped limiting groove; 908. U-shaped groove; 909. Strip through groove; 910. First through hole; 10. Support bar; 11. Stop block; 12. First impurity discharge port; 13. Discharge port; 14. Second impurity discharge port; 15. Vibration motor; Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1-6. A screening device for sunflower production includes a base 1. A hopper 3 is fixedly connected to the base 1 via a support rod 2. A screening mechanism is provided on the base 1 and located below the hopper 3. The screening mechanism is characterized in that: the screening mechanism includes a vibration support 4 whose lower end is fixedly connected to the base 1, and the upper end of the vibration support 4 is fixedly connected to a frame 5. Vibration motors 15 are installed on both sides of the lower end of the frame 5. A first screen plate 6, a second screen plate 7, and an impurity guide plate 8 are arranged sequentially from top to bottom inside the frame 5. Quick-release components 9 are provided on both outer sides of the frame 5. The first screen plate 6 and the second screen plate 7 are fixed to the frame 5 via the quick-release components 9.

[0022] The quick-release assembly 9 includes a limiting cylinder 901 fixedly mounted on the outer side of the frame 5. A locking rod 902 is slidably connected to the limiting cylinder 901. A pull rod 903 is fixedly connected to the side of the locking rod 902. A limiting ring 904 is rotatably connected to the side of the pull rod 903 away from the outer side of the frame 5 and on the locking rod 902. A limiting cover 905 is rotatably connected to the end of the limiting cylinder 901 away from the outer side of the frame. A spring 906 is sleeved on the locking rod 902 between the limiting ring 904 and the limiting cover 905. The two ends of the spring 906 are fixedly connected to the limiting ring 904 and the limiting cover 905, respectively. An L-shaped limiting groove 907 and a U-shaped groove 908 are respectively opened on the cylinder wall of the limiting cylinder 901. The L-shaped limiting groove 907 and the U-shaped groove 908 are connected by a strip-shaped through groove 909. A first through hole 910 is opened at the center of the limiting cover 905 for one end of the locking rod 902 to pass through.

[0023] The side wall of the frame 5 is provided with a second through hole 501 through which the other end of the locking rod 902 passes.

[0024] The first sieve plate 6 and the second sieve plate 7 have a third through hole 601 and a fourth through hole 701 that are coaxial with the second through hole 501 on their side ends. The other end of the locking rod 902 can be inserted into the third through hole 601 and the fourth through hole 701.

[0025] The inner wall of the frame 5 has two support bars 10 arranged from top to bottom to support the first screen plate 6 and the second screen plate 7. One end of the support bar 10 is provided with a stop block 11.

[0026] Among them, a first impurity discharge port 12, a discharge port 13, and a second impurity discharge port 14 are respectively provided at one end of the first screen plate 6, the second screen plate 7, and the impurity guide plate 8, which are fixedly connected to the end of the frame 5.

[0027] Working principle: When in use, start the vibration motor 15, and then pour the sunflower seeds to be screened into the feed hopper 3. The sunflower seeds will fall from the discharge port at the bottom of the feed hopper 3 onto the vibrating first screen plate 6. The sunflower seeds and some small particles of impurities will fall from the screen holes of the first screen plate 6 onto the vibrating second screen plate 7. Larger stones and other large particles of impurities will remain on the first screen plate 6 and move along the first screen plate 6 towards the first impurity outlet 12, eventually falling out of the first impurity outlet 12. At the same time, the sunflower seeds and small particles of impurities on the second screen plate 7 will move towards the discharge port 13 with vibration. The small particles of impurities will fall from the screen holes of the second screen plate 7 onto the impurity guide plate 8, leaving clean sunflower seeds on the second screen plate 7. The sunflower seeds will finally fall out of the discharge port 13, while the small particles on the impurity guide plate 8 will move towards the second impurity outlet 14 and finally fall out of the second impurity outlet 14.

[0028] When the first screen plate 6 or the second screen plate 7 needs to be replaced due to damage or other reasons, the vibrating motor 15 can be stopped. Then, the pull rod 903 can be pulled by hand towards the limit cover 905, so that the pull rod 903 moves out of the L-shaped through groove 907 and then enters the U-shaped through groove 908 through the strip through groove 909. During this process, the locking rod 902 will move towards the limit cover 905, and then the locking rod 902 will drive the limit ring 904 to compress the spring 906, ensuring that it is locked into the U-shaped through groove 908. The pull rod will not slide out. At this time, the end of the locking rod 902 away from the limit cover 905 has slid out from the third through hole 601 or the fourth through hole 701 and entered the second through hole 501. After completing the quick-release assembly 9 bucket operation for the first screen plate 6 or the second screen plate 7 according to the above steps, you can pull the end of the first screen plate 6 away from the first discharge port 12 or the end of the second screen plate 7 away from the discharge port 13 by hand to slide the first screen plate 6 or the second screen plate 7 out on the support bar 10.

[0029] Then, place the new first screen plate 6 or second screen plate 7 into the support bar 10 according to the corresponding position and push it in. Then, the front end of the first screen plate 6 or second screen plate 7 will contact the stop block 11. At this time, the third through hole 601 on the side of the first screen plate 6 or the fourth through hole 701 on the side of the second screen plate 7 will be coaxially aligned with the second through hole 501 at the corresponding position. Then, move the pull rod 903 back to the initial position into the L-shaped through groove 907. At this time, the end of the locking rod 902 away from the limit cover 905 will also extend out from the second through hole 501 and insert into the third through hole 601 or the fourth through hole 701. At this time, the replacement of the newly installed first screen plate 6 or second screen plate 7 is completed.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A screening device for sunflower production, comprising a base (1), a feeding hopper (3) fixedly connected above the base (1) by a support rod (2), and a screening mechanism disposed on the base (1), the screening mechanism being located below the feeding hopper (3), characterized in that: The screening mechanism includes a vibration support (4) whose lower end is fixedly connected to the base (1), and the upper end of the vibration support (4) is fixedly connected to the frame (5). Vibration motors (15) are installed on both sides of the lower end of the frame (5). A first screen plate (6), a second screen plate (7), and an impurity guide plate (8) are arranged sequentially from top to bottom inside the frame (5). Quick-release components (9) are provided on both outer sides of the frame (5). The first screen plate (6) and the second screen plate (7) are fixed to the frame (5) through the quick-release components (9). The quick-release components (9) include a limiting cylinder (901) fixedly arranged on the outer side of the frame (5). The limiting cylinder (901) is slidably connected to a locking rod (902). A pull rod (903) is fixedly connected to the side of the locking rod (902). 3) A limiting ring (904) is rotatably connected to the side away from the outer side of the frame (5) and on the locking rod (902). A limiting cover (905) is rotatably connected to the end of the limiting cylinder (901) away from the outer side of the frame. A spring (906) is sleeved on the locking rod (902) between the limiting ring (904) and the limiting cover (905). The two ends of the spring (906) are fixedly connected to the limiting ring (904) and the limiting cover (905) respectively. An L-shaped limiting groove (907) and a U-shaped groove (908) are respectively opened on the cylinder wall of the limiting cylinder (901). The L-shaped limiting groove (907) and the U-shaped groove (908) are connected through a strip through groove (909). A first through hole (910) is opened at the center of the limiting cover (905) for one end of the locking rod (902) to pass through.

2. The screening device for sunflower production according to claim 1, characterized in that: The side wall of the frame (5) is provided with a second through hole (501) through which the other end of the locking rod (902) passes.

3. The screening device for sunflower production according to claim 1, characterized in that: The first sieve plate (6) and the second sieve plate (7) have a third through hole (601) and a fourth through hole (701) coaxial with the second through hole (501) on their side ends. The other end of the locking rod (902) can be inserted into the third through hole (601) and the fourth through hole (701).

4. A screening device for sunflower production according to claim 1, characterized in that: On the inner wall of the frame (5), there are two support bars (10) arranged from top to bottom to support the first sieve plate (6) and the second sieve plate (7). One end of the support bar (10) is provided with a stop (11).

5. A screening device for sunflower production according to claim 1, characterized in that: A first waste discharge port (12), a discharge port (13), and a second waste discharge port (14) are respectively provided at one end of the first screen plate (6), the second screen plate (7), and the impurity guide plate (8) and are fixedly connected to the end of the frame (5).

Images