Rice screening machine capable of achieving efficient screening

Abstract

The utility model provides a rice screening machine capable of efficiently screening, which relates to the technical field of screening machines and comprises a fixing frame, a storage barrel and a vibration frame are respectively arranged on the outer top of the fixing frame, a sealing cover is arranged on the outer top of the storage barrel, and a filter screen barrel is further arranged in the storage barrel. A first screen and a second screen are connected to the inner side wall of the vibration frame at equal intervals, and a driving mechanism capable of synchronously driving the filter screen drum to rotate and the vibration frame to slide back and forth is arranged on the inner bottom face of the fixing frame. According to the utility model, the driving motor is used as a power source, and under the mutual cooperation of the first belt pulley, the second belt pulley and the transmission belt, the first rotating shaft rod and the second rotating shaft rod rotate, and meanwhile, the filter screen drum, the first screen mesh and the second screen mesh can be synchronously linked; and then rice particles of different sizes and fixed sundries of the rice particles are subjected to multi-layer grading screening treatment, so that the rice particles are thoroughly screened.

Description

Technical Field

[0001] The utility model relates to the field of screening machinery, in particular to a rice screening machine capable of efficient screening. Background Art

[0002] After being husked, rice grains are transformed into rice. Due to the quality of the rice itself and mechanical processing, the rice grains vary in size and there are also some impurities mixed in it. In order to ensure the quality of the rice, it is usually necessary to screen the rice.

[0003] At present, most screening machines use a vibrating screen to quickly screen rice. For example, Chinese patent publication number CN214183995U discloses a rice screening machine that can be efficiently screened, including a rice screening machine body, a screening frame is arranged inside the rice screening machine body, a fan mechanism is arranged at the upper end of the screening frame, a feed box is arranged on the upper end outer surface of the rice screening machine body, and a feed mechanism is arranged on the lower end outer wall of the feed box. In the above-mentioned public document, the rice screening machine can be relatively efficiently screened by the fan box and the fan blade, thereby improving the screening efficiency of rice, wherein the fixed block and the fan frame can effectively increase the stability of the fan mechanism, prevent the damage of the fan box caused by the shaking of the screening frame, and the gear and the movable baffle can effectively control the amount of the feed box entering the inside of the rice screening machine body, thereby improving the efficiency of rice screening. However, when the patent is used, it can only perform a simple screening process on the rice, and it is impossible to grade and screen the rice particles, which easily causes the rice screening to be incomplete, thereby making the processing efficiency low. To this end, those skilled in the art provide a rice screening machine that can screen rice efficiently to solve the problems raised in the above background technology. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a rice screening machine that can efficiently screen rice, which can effectively solve the problem that the background technology can only perform simple screening on rice, but cannot grade and screen the rice particles, which easily leads to incomplete rice screening and thus low processing efficiency.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a rice screening machine capable of efficient screening, comprising a fixed frame, a storage cylinder and a vibration frame are respectively arranged on the outer top of the fixed frame, a sealing cover is arranged on the outer top of the storage cylinder, and a filter screen cylinder is also arranged inside the storage cylinder, and a discharge port is opened at the bottom of the outer wall of the storage cylinder and above the vibration frame;

[0006] The inner side wall of the vibration frame is connected with a first screen and a second screen at equal intervals, and the first screen, the second screen and the inclined end of the inner bottom surface of the vibration frame are provided with a through-type feed opening, and the inner bottom surface of the fixed frame is provided with a collection box inserted through a semi-open slot below the feed opening;

[0007] The inner bottom surface of the fixed frame is provided with a driving mechanism which can synchronously drive the filter screen drum to rotate and the vibration frame to slide back and forth.

[0008] As a further technical solution of the utility model, the driving mechanism includes a rotating disk rotatably connected to the inner bottom surface of the storage cylinder, a threaded sleeve hole is opened on the outer top of the rotating disk, and the threaded sleeve hole is threadedly connected to the threaded plug rod fixedly installed on the outer bottom of the filter screen cylinder. The outer bottom of the rotating disk is connected to the output end of the driving motor installed on one end of the inner bottom surface of the fixed frame through a first rotating shaft rod, and the other end of the inner bottom surface of the fixed frame and located below the vibration frame is rotatably connected to the second rotating shaft rod through a connecting frame.

[0009] As a further technical solution of the utility model, a first pulley is fixedly installed inside the fixed frame and on the outer surface of the first rotating shaft rod, a second pulley and an eccentric wheel are respectively installed on one end of the second rotating shaft rod, the first pulley and the second pulley are rotatably connected to each other through a transmission belt, a cross block is fixedly installed on the outer bottom of the vibration frame, and the cross block and the eccentric wheel are movably abutted against each other.

[0010] As a further technical solution of the utility model, fixing rods are installed on the outer walls of two sides of the vibration frame, one end of the two fixing rods is slidably sleeved on the inner walls of both sides of the fixing frame, a reset spring is sleeved between the outer wall of the vibration frame and the inner wall of the fixing frame and on the outer surface of the two fixing rods, and the other two outer walls of the vibration frame are slidably connected to the concave plates installed on the inner walls of both sides of the fixing frame through connecting plates.

[0011] As a further technical solution of the utility model, the inner bottom surface of the sealing cover is mutually sleeved with the storage tube through a limiting ring, and a first handle is installed on the outer top of the sealing cover. The outer bottom of the storage tube is fixedly connected to the fixing frame through bolts, and the inner bottom end of the storage tube is inclined, and the inclined end corresponds to the discharge port.

[0012] As a further technical solution of the utility model, diverter plates are installed inside the vibration frame and at the feed ports of the first screen and the second screen, the interior of the collecting box is divided into different collecting chambers by a baffle, and a second handle is installed on the outer wall of the collecting box, and the diverter end of the diverter plate corresponds to the collecting chamber.

[0013] The utility model provides a rice screening machine that can screen rice efficiently, which has the following beneficial effects compared with the prior art:

[0014] 1. A rice screening machine capable of efficient screening, which uses a driving motor as a power source during screening, and under the cooperation of a first pulley, a second pulley and a transmission belt, allows the first rotating shaft and the second rotating shaft to rotate while the filter screen cylinder and the first screen and the second screen are synchronously linked, thereby performing multi-level graded screening processing on rice particles of different sizes and fixed debris thereon, thereby thoroughly screening the rice particles, which is beneficial to improving the work efficiency of processing and production.

[0015] 2. A rice screening machine capable of efficient screening, which facilitates the disassembly and assembly of the filter screen cylinder through the arrangement of threaded sleeve holes and threaded plug rods, and thus facilitates its later cleaning. At the same time, the arranged diverter plates and baffles facilitate the classification and collection of the screened rice particles, which is conducive to further improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a rice screening machine capable of efficient screening;

[0017] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of a rice screening machine capable of efficient screening;

[0018] Figure 3 The present invention is a schematic diagram of the cross-sectional structure when viewed from above of a rice screening machine capable of efficiently screening rice.

[0019] In the figure: 1. fixed frame; 2. storage cylinder; 3. vibration frame; 4. sealing cover; 5. filter screen cylinder; 6. discharge port; 7. first screen; 8. second screen; 9. discharge port; 10. notch; 11. collection box; 12. rotating disk; 13. threaded sleeve hole; 14. threaded plug rod; 15. first rotating shaft rod; 16. second rotating shaft rod; 17. driving motor; 18. first pulley; 19. second pulley; 20. transmission belt; 21. eccentric wheel; 22. cross block; 23. fixed rod; 24. reset spring; 25. diverter plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3As shown, a rice screening machine capable of efficient screening comprises a fixed frame 1, a storage cylinder 2 and a vibration frame 3 are respectively arranged on the outer top of the fixed frame 1, a sealing cover 4 is arranged on the outer top of the storage cylinder 2, and a filtering screen cylinder 5 is also arranged inside the storage cylinder 2, a discharge port 6 is provided at the bottom of the outer side wall of the storage cylinder 2 and above the vibration frame 3, the inner bottom surface of the sealing cover 4 is mutually sleeved with the storage cylinder 2 through a limiting ring, and a first grip is installed on the outer top of the sealing cover 4, the outer bottom of the storage cylinder 2 is fixedly connected to the fixed frame 1 by bolts, the inner bottom end of the storage cylinder 2 is inclined, and the inclined end corresponds to the discharge port 6, and the inner bottom of the fixed frame 1 A driving mechanism is provided on the surface which can synchronously drive the filter screen drum 5 to rotate and the vibration frame 3 to slide back and forth, the driving mechanism includes a rotating disk 12 rotatably connected to the inner bottom surface of the storage cylinder 2, a threaded sleeve hole 13 is opened on the outer top of the rotating disk 12, and the threaded insertion rod 14 fixedly installed on the outer bottom of the filter screen drum 5 is threadedly connected to each other through the threaded sleeve hole 13, the outer bottom of the rotating disk 12 is connected to the output end of the driving motor 17 installed on one end of the inner bottom surface of the fixed frame 1 through a first rotating shaft rod 15, and the other end of the inner bottom surface of the fixed frame 1 and located below the vibration frame 3 is rotatably connected to a second rotating shaft rod 16 through a connecting frame. When screening, first fix the filter screen 5 of different apertures in the threaded sleeve hole 13 on the rotating disk 12 through the threaded plug rod 14 as needed, then put the rice particles to be screened into the filter screen 5, and close the sealing cover 4. Through the fixing method of threaded sleeve connection, the filter screen 5 can be replaced according to different screening requirements, so as to meet the screening of different crops, thereby increasing the practicality of the screening machine, and at the same time start the driving motor 17 to drive the first rotating shaft 15 to drive the rotating disk 12 to rotate while driving the filter screen 5 to rotate, generate centrifugal force, to perform the initial screening of rice particles, to remove some fixed debris in the rice, and the screened rice particles are discharged into the vibration frame 3 through the discharge port 6 for re-screening, which is conducive to improving the thoroughness of subsequent screening. Secondly, when it is necessary to clean the fixed debris screened in the filter screen 5, remove the sealing cover 4 through the first handle, twist the filter screen 5 to separate it from the rotating disk 12, and take it out from the storage tube 2, and then clean it.

[0022] The first screen 7 and the second screen 8 are connected to the inner wall of the vibration frame 3 at equal intervals, and the first screen 7, the second screen 8 and the inclined end of the inner bottom surface of the vibration frame 3 are provided with a through-type discharge port 9. The inner bottom surface of the fixed frame 1 and the lower part of the discharge port 9 are provided with a collecting box 11 inserted through a semi-open slot 10, and the interior of the fixed frame 1 and the outer surface of the first rotating shaft 15 are fixedly installed with a first pulley 18, and one end of the second rotating shaft 16 is respectively installed with a second pulley 19 and an eccentric wheel 21, and the first pulley 18 and the second pulley 19 are rotatably connected to each other through a transmission belt 20, and a cross block 22 is fixedly installed on the outer bottom of the vibration frame 3, and the cross block 22 and the eccentric wheel 21 are connected to each other. They are movably abutted against each other, and fixed rods 23 are installed on the outer walls of two sides of the vibration frame 3, and one end of the two fixed rods 23 is slidably sleeved on the inner walls of both sides of the fixing frame 1. A return spring 24 is sleeved between the outer wall of the vibration frame 3 and the inner wall of the fixing frame 1 and on the outer surface of the two fixed rods 23. The other two outer walls of the vibration frame 3 are slidably connected to the concave plates installed on the inner walls of both sides of the fixing frame 1 through connecting plates. Diverter plates 25 are installed inside the vibration frame 3 and at the discharge ports 9 of the first screen 7 and the second screen 8. The interior of the collecting box 11 is divided into different collecting chambers by baffles, and a second handle is installed on the outer wall of the collecting box 11. The diverter end of the diverter plate 25 corresponds to the collecting chamber. When the rice particles after the initial screening enter the vibration frame 3, the first pulley 18 is driven by the first rotating shaft 15 to rotate with the second pulley 19 under the action of the transmission belt 20, so that the second rotating shaft 16 is synchronously linked, so that the eccentric wheel 21 pushes the cross block 22 to move back and forth, and the vibration frame 3 slides back and forth on the inner side of the fixed frame 1, so that the first screen 7 and the second screen 8 can screen the rice particles again, and the rice particles of different sizes are left in the first screen 7, the second screen 8 and the upper surface of the vibration frame 3 in turn. At the same time, because the upper surfaces of the first screen 7, the second screen 8 and the vibration frame 3 are inclined, it is convenient for the rice particles screened by grade to enter the collecting box 11 through the diverter plate 25 at the discharge port 9 for unified collection, thereby saving the process of distinguishing rice particles of different sizes again in the later stage, and the rice can be thoroughly screened, which is conducive to improving the screening work efficiency. Secondly, when the vibration frame 3 is screening, the fixing rod 23, the return spring 24, the connecting plate and the concave plate can make the sliding back and forth more stable.

[0023] The working principle of the utility model is as follows: when screening, the rice to be screened is put into the filter screen drum 5, then the sealing cover 4 is closed, and the driving motor 17 is started at the same time, driving the first rotating shaft 15 to drive the rotating disk 12 to rotate, thereby driving the filter screen to rotate, and the rice particles are initially screened under the action of centrifugal force, so that some fixed impurities contained in the rice are intercepted and stored in the filter screen drum 5, and the screened rice enters the vibration frame 3 through the discharge port 6 for re-screening.

[0024] When the initially screened rice grains enter the vibration frame 3, the first pulley 18 on the first rotating shaft 15 drives the second pulley 19 on the second rotating shaft 16 to rotate in cooperation with the transmission belt 20, so that the eccentric wheel 21 on the second rotating shaft 16 pushes the vibration frame 3 to move back and forth, so that the first screen 7 and the second screen 8 screen the rice grains again, and the rice screening is more thorough through multi-level screening.

[0025] The rice that has been screened by layers then enters different collecting chambers in the collecting box 11 along the diverter plate 25 at the discharge port 9 for unified collection. When the collecting box 11 is full, the collecting box 11 is taken out along the slot 10 by the second handle, and the rice is poured out for storage.

[0026] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A rice screening machine capable of efficient screening, characterized in that: The invention comprises a fixed frame (1), a storage cylinder (2) and a vibration frame (3) are respectively arranged on the outer top of the fixed frame (1), a sealing cover (4) is arranged on the outer top of the storage cylinder (2), and a filter screen cylinder (5) is also arranged inside the storage cylinder (2), and a discharge port (6) is opened at the bottom of the outer wall of the storage cylinder (2) and located above the vibration frame (3); The inner side wall of the vibration frame (3) is connected with a first screen (7) and a second screen (8) at equal intervals, and the first screen (7), the second screen (8) and the inclined end of the inner bottom surface of the vibration frame (3) are all provided with a through-type discharge port (9), and the inner bottom surface of the fixed frame (1) is located below the discharge port (9) and is plugged with a collection box (11) through a semi-open slot (10); The inner bottom surface of the fixed frame (1) is provided with a driving mechanism capable of synchronously driving the filter screen cylinder (5) to rotate and the vibration frame (3) to slide back and forth.

2. A rice screening machine capable of efficient screening according to claim 1, characterized in that: The driving mechanism comprises a rotating disk (12) rotatably connected to the inner bottom surface of the storage cylinder (2); a threaded sleeve hole (13) is provided on the outer top of the rotating disk (12), and the rotating disk (12) is threadedly connected to a threaded plug rod (14) fixedly installed on the outer bottom surface of the filter screen cylinder (5) through the threaded sleeve hole (13); the outer bottom surface of the rotating disk (12) is connected to the output end of a driving motor (17) installed on one end of the inner bottom surface of a fixed frame (1) through a first rotating shaft rod (15); the other end of the inner bottom surface of the fixed frame (1) and located below the vibration frame (3) is rotatably connected to a second rotating shaft rod (16) through a connecting frame.

3. A rice screening machine capable of efficient screening according to claim 2, characterized in that: A first pulley (18) is fixedly mounted inside the fixed frame (1) and on the outer surface of the first rotating shaft (15); a second pulley (19) and an eccentric wheel (21) are respectively mounted on one end of the second rotating shaft (16); the first pulley (18) and the second pulley (19) are rotatably connected to each other via a transmission belt (20); a transverse block (22) is fixedly mounted on the outer bottom of the vibration frame (3), and the transverse block (22) and the eccentric wheel (21) are movably abutted against each other.

4. The rice screening machine capable of efficient screening according to claim 1, characterized in that: Fixed rods (23) are installed on two outer side walls of the vibration frame (3), one end of each of the two fixed rods (23) is slidably sleeved on the inner side walls of the fixing frame (1), a return spring (24) is sleeved between the outer side wall of the vibration frame (3) and the inner side wall of the fixing frame (1) and on the outer surface of the two fixed rods (23), and the other two outer side walls of the vibration frame (3) are slidably connected to the concave plates installed on the inner side walls of the fixing frame (1) via connecting plates.

5. The rice screening machine capable of efficient screening according to claim 1, characterized in that: The inner bottom surface of the sealing cover (4) is mutually sleeved with the storage cylinder (2) via a limiting ring, and a first handle is installed on the outer top of the sealing cover (4). The outer bottom of the storage cylinder (2) is fixedly connected to the fixing frame (1) via bolts. The inner bottom end of the storage cylinder (2) is inclined, and the inclined end corresponds to the discharge port (6).

6. The rice screening machine capable of efficient screening according to claim 1, characterized in that: A diverter plate (25) is installed inside the vibration frame (3) and at the feed openings (9) of the first screen (7) and the second screen (8); the interior of the collection box (11) is divided into different collection chambers by a baffle plate; a second handle is installed on the outer side wall of the collection box (11); and the diverter end of the diverter plate (25) corresponds to the collection chamber.

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