Buckwheat processing and screening device

Abstract

The utility model discloses a buckwheat processing screening device which comprises a machine frame, a screening frame is installed above the machine frame through a telescopic rod, a spring is installed on the outer side of the telescopic rod in a sleeved mode, a vibration motor is arranged on the side wall of the screening frame, a pair of screen cloth is arranged in the screening frame in an inclined mode, and a pair of discharging ports for the screen cloth to use are formed in the side wall of the screening frame. The utility model relates to the technical field of buckwheat processing, and the device realizes double screening of buckwheat grains through a pair of screen meshes which are obliquely arranged and have different pore diameters, ensures that qualified buckwheat grains are screened out, effectively separates out large-volume impurities such as straws and small-volume impurities such as sandy soil grains, and improves the quality of buckwheat grains. The elastic pieces on the pair of main shafts can make contact with the lower wall of the screen in the rotating process, the elastic flapping effect is achieved, buckwheat grains and impurities embedded in meshes of the screen are popped out in time, the screen is prevented from being blocked, and the screening process is kept unobstructed.

Description

Technical Field

[0001] The utility model relates to the technical field of buckwheat processing, in particular to a buckwheat processing and screening device. Background Art

[0002] In the agricultural product processing industry, buckwheat is one of the important food crops, and the screening process during its processing is crucial to ensuring product quality and improving processing efficiency.

[0003] The Chinese patent with the announcement number CN217857300U discloses a buckwheat hulling and vibrating screening integrated machine for flour processing, which relates to the technical field of buckwheat flour processing. The buckwheat hulling and vibrating screening integrated machine for flour processing comprises a hulling and screening box, a buffer mechanism is arranged on one side of the hulling and screening box, filter screens are fixedly installed on the inner walls of both sides of the hulling and screening box, and a collecting box is fixedly installed on the outer surface of one side of the hulling and screening box.

[0004] The device can achieve buckwheat screening through the cooperation of the vibration mechanism, the first sub-screen plate and the second sub-screen plate. However, during the screening process, foreign particles are easily stuck in the sieve holes, causing the screen to be blocked, affecting the screening effect, and requiring frequent shutdowns for cleaning, which reduces the operating efficiency of the equipment and is inconvenient to use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a buckwheat processing and screening device, which solves the problem that impurity particles in the prior art buckwheat processing are easily stuck in the sieve holes, causing clogging of the sieve and affecting the screening effect.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a buckwheat processing and screening device, comprising a frame, a screening frame is installed above the frame through a telescopic rod, a spring is mounted on the outer side of the telescopic rod, a vibration motor is provided on the side wall of the screening frame, a pair of screens are obliquely provided in the screening frame, a pair of discharge ports for the screens are provided on the side wall of the screening frame, a pair of support plates are provided on the upper wall of the frame, a hopper is fixedly provided between the pair of support plates and above the screening frame, a discharge port is provided at the bottom of the hopper, a material equalizing assembly is provided in the hopper, a pair of main shafts are rotatably installed in the screening frame, a pair of side walls of the main shafts are provided with a plurality of elastic sheets along the length direction, the elastic sheets can contact the lower wall of the screen, and a driving assembly connected to the main shaft is provided on the outer wall of the screening frame.

[0007] Preferably, the driving assembly includes a pair of supports arranged on the outer wall of the screening frame, a driving shaft is rotatably installed between the pair of supports, a pair of main gears are installed on the driving shaft, one end of the main shaft passes through the screening frame and is installed with a secondary gear meshing with the main gear, and a first motor connected to one end of the driving shaft is provided on one side of the supports.

[0008] Preferably, the material distribution assembly includes a discharge shaft rotatably installed in the hopper, a discharge roller is provided on the discharge shaft, the outer wall of the discharge roller is slidingly fitted with the discharge port, the outer wall of the discharge roller is provided with a discharge groove, and the outer wall of the hopper is provided with a second motor connected to one end of the discharge shaft.

[0009] Preferably, a guide platform fixedly connected to the frame is provided below the screening frame.

[0010] Preferably, the mesh diameter of the upper mesh is larger than the mesh diameter of the lower mesh.

[0011] Preferably, the number of the telescopic rods is at least four and they are distributed at the four corners of the lower wall of the screening frame.

[0012] Beneficial Effects

[0013] The utility model discloses a buckwheat processing and screening device, which has the following beneficial effects:

[0014] 1. This device realizes double screening of buckwheat grains through a pair of inclined screens with different apertures, ensuring that qualified buckwheat grains are screened out, effectively separating large-volume impurities such as straw and small-volume impurities such as sand particles, and improving the screening effect.

[0015] 2. A pair of elastic sheets on the main shaft can contact the lower wall of the screen during rotation, playing an elastic flapping role, and timely ejecting the buckwheat grains and impurities embedded in the mesh of the screen, preventing the screen from being blocked and keeping the screening process unimpeded.

[0016] 3. The material distribution component in the hopper can evenly and quantitatively deliver buckwheat grains to the screening frame through the design of the discharge shaft, discharge roller and discharge trough, avoiding excessive one-time input that leads to a decrease in screening efficiency, and ensuring a stable and efficient screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0019] In the figure: 1. frame; 2. telescopic rod; 3. screening frame; 4. spring; 5. vibration motor; 6. screen; 7. discharge port; 8. support plate; 9. hopper; 10. main shaft; 11. elastic sheet; 12. support; 13. drive shaft; 14. main gear; 15. sub-gear; 16. first motor; 17. discharge shaft; 18. discharge roller; 19. discharge trough; 20. second motor; 21. guide table. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 The utility model provides a technical solution: a buckwheat processing and screening device, comprising a frame 1, a screening frame 3 is installed above the frame 1 through a telescopic rod 2, a spring 4 is sleeved on the outer side of the telescopic rod 2, a vibration motor 5 is arranged on the side wall of the screening frame 3, a pair of screens 6 are inclinedly arranged in the screening frame 3, and a pair of discharge ports 7 for the screens 6 are arranged on the side wall of the screening frame 3, a pair of support plates 8 are arranged on the upper wall of the frame 1, a hopper 9 is fixedly arranged between the pair of support plates 8 and above the screening frame 3, a discharge port 7 is arranged at the bottom of the hopper 9, a material equalizing component is arranged in the hopper 9, a pair of main shafts 10 are rotatably installed in the screening frame 3, a pair of side walls of the main shafts 10 are provided with a plurality of elastic sheets 11 along the length direction, the elastic sheets 11 can contact the lower wall of the screen 6, and the outer wall of the screening frame 3 is provided with a driving component connected with the main shaft 10.

[0022] By adopting the above technical solution, a screening frame 3 is installed above the frame 1 through a telescopic rod 2. A spring 4 is mounted on the outside of the telescopic rod 2 to buffer vibration and keep the screening frame 3 stable. A vibration motor 5 is provided on the side wall of the screening frame 3 to drive the screening frame 3 to perform vibration screening. The inclined setting of the screen 6 is conducive to the flow of materials from top to bottom, thereby improving the screening efficiency. The elastic sheet 11 generates high-frequency knocking when the main shaft 10 rotates, which assists the screen 6 in fine screening and prevents particles from clogging the screen holes.

[0023] This embodiment is further configured as follows: the driving assembly includes a pair of supports 12 arranged on the outer wall of the screening frame 3, a driving shaft 13 is rotatably installed between the pair of supports 12, a pair of main gears 14 are installed on the driving shaft 13, one end of the main shaft 10 passes through the screening frame 3 and is installed with a sub-gear 15 meshing with the main gear 14, and a first motor 16 connected to one end of the driving shaft 13 is provided on one side of the supports 12.

[0024] By adopting the above technical solution, the first motor 16 drives the driving shaft 13 to rotate, and then the pair of main gears 14 drives the pair of sub-gears 15 to rotate, thereby driving the main shaft 10 and the elastic sheet 11 to rotate synchronously.

[0025] This embodiment is further configured such that the material distribution assembly includes a discharge shaft 17 rotatably installed in the hopper 9, a discharge roller 18 is provided on the discharge shaft 17, the outer wall of the discharge roller 18 is slidingly fitted with the discharge port 7, a discharge groove 19 is provided on the outer wall of the discharge roller 18, and the outer wall of the hopper 9 is provided with a second motor 20 connected to one end of the discharge shaft 17.

[0026] By adopting the above technical solution, the second motor 20 can drive the discharge roller 18 to rotate. As the discharge roller 18 rotates, when a gap is generated between the discharge trough 19 and the discharge port 7, the material in the hopper 9 will fall through the gap onto the screen 6 for screening. As the discharge roller 18 continues to rotate, the discharge trough 19 is separated from the discharge port 7. At this time, the discharge port 7 is blocked by the discharge roller 18 and material discharge is stopped. Through the continuous rotation of the discharge roller 18, intermittent material discharge can be achieved to avoid accumulation caused by a large amount of material falling, which affects the screening efficiency.

[0027] This embodiment is further configured such that a guide platform 21 fixedly connected to the frame 1 is provided below the screening frame 3 .

[0028] The above technical solution is used to receive and discharge the small particle impurities separated by screening.

[0029] The present embodiment is further configured such that the diameter of the mesh holes of the upper mesh 6 is greater than the diameter of the mesh holes of the lower mesh 6 .

[0030] By adopting the above technical solution, a double-layer grading screening structure is formed to achieve coarse and fine separation of buckwheat particles.

[0031] This embodiment is further configured such that the number of the telescopic rods 2 is at least four and they are distributed at the four corners of the lower wall of the screening frame 3 .

[0032] By adopting the above technical solution, it is ensured that the screening frame 3 is subjected to balanced force and operates stably.

[0033] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0034] Embodiment: During operation, the buckwheat raw material is fed into the hopper 9, the second motor 20 is started, and the discharging shaft 17 is driven to rotate. The discharging groove 19 on the discharging roller 18 evenly disperses the raw material, so that it intermittently falls into the screening frame 3 from the discharging port 7 at the bottom of the hopper 9 to avoid uneven screening caused by local accumulation. The vibration motor 5 is started, and the screening frame 3 begins to vibrate. Buckwheat particles jump on the screen 6 and slide downward under the action of vibration. At the same time, the first motor 16 is started, and the driving assembly drives the main shaft 10 to rotate. The elastic sheet 11 knocks the screen 6 at a high frequency to further prevent the sieve holes from being blocked and improve the screening efficiency. Small particles of impurities and buckwheat particles can pass through the aperture of the upper screen 6 and fall onto the next screen 6, while large impurities cannot pass through the screen holes and are discharged from the upper discharging port 7; the lower screen 6 can air the buckwheat particles and small impurities, and discharge the buckwheat from the lower discharging port 7, and the small impurities pass through the lower filter and fall onto the guide table 21 for discharge, and finally complete the fine screening of buckwheat.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buckwheat processing and screening device, comprising a frame (1), characterized in that: A screening frame (3) is installed above the frame (1) via a telescopic rod (2), a spring (4) is sleeved on the outer side of the telescopic rod (2), a vibration motor (5) is provided on the side wall of the screening frame (3), a pair of screens (6) are obliquely arranged in the screening frame (3), a pair of discharge ports (7) for the screens (6) are provided on the side wall of the screening frame (3), a pair of support plates (8) are provided on the upper wall of the frame (1), a hopper (9) is fixedly provided between the pair of support plates (8) and located above the screening frame (3), a discharge port (7) is provided at the bottom of the hopper (9), a material equalization component is provided in the hopper (9), a pair of main shafts (10) are rotatably installed in the screening frame (3), a pair of side walls of the main shafts (10) are provided with a plurality of elastic sheets (11) along the length direction, the elastic sheets (11) can contact the lower wall of the screen (6), and a driving component connected to the main shaft (10) is provided on the outer wall of the screening frame (3).

2. A buckwheat processing and screening device according to claim 1, characterized in that: The driving assembly comprises a pair of supports (12) arranged on the outer wall of the screening frame (3), a driving shaft (13) is rotatably mounted between the pair of supports (12), a pair of main gears (14) are mounted on the driving shaft (13), one end of the main shaft (10) passes through the screening frame (3) and is mounted with a sub-gear (15) meshing with the main gear (14), and a first motor (16) connected to one end of the driving shaft (13) is arranged on one side of the supports (12).

3. A buckwheat processing and screening device according to claim 2, characterized in that: The material distribution assembly includes a discharge shaft (17) rotatably mounted in the hopper (9), a discharge roller (18) is provided on the discharge shaft (17), the outer wall of the discharge roller (18) is slidably fitted with the discharge port (7), the outer wall of the discharge roller (18) is provided with a discharge groove (19), and the outer wall of the hopper (9) is provided with a second motor (20) connected to one end of the discharge shaft (17).

4. The buckwheat processing and screening device according to claim 1, characterized in that: A flow guide platform (21) fixedly connected to the frame (1) is provided below the screening frame (3).

5. The buckwheat processing and screening device according to claim 1, characterized in that: The diameter of the mesh holes of the upper sieve (6) is greater than the diameter of the mesh holes of the lower sieve (6).

6. The buckwheat processing and screening device according to claim 1, characterized in that: The number of the telescopic rods (2) is at least four and they are distributed at the four corners of the lower wall of the screening frame (3).

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