Screening machine for coarse cereal processing
By designing a screening machine that includes an arc-shaped screen plate and a chain drive system, the problems of low efficiency and insufficient precision in traditional grain screening have been solved, achieving efficient and accurate grain particle size screening and improving product quality and production efficiency.
Patent Information
- Application Number
- CN202520036276.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Traditional methods of screening grains are inefficient and lack precision, failing to meet the needs of large-scale production and resulting in inconsistent product quality.
A screening machine including a material selection component and a screening actuation component was designed. The material selection component consists of multiple arc-shaped screen plates with gradually increasing screen hole diameters, connected by springs. The screening actuation component is driven by a rotating shaft, a water droplet plate, and a chain drive system to vibrate and screen the screen plates. Combined with the discharge component, it achieves precise and efficient particle size screening.
It improves the accuracy and efficiency of grain screening, ensures product quality, reduces labor and time costs, and supports large-scale and refined production of grain processing.
Smart Images
Figure CN223748024U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coarse grain processing, especially to a screening machine for coarse grain processing. BACKGROUND
[0002] In the current food market, coarse grains are gradually favored by consumers and the market size continues to expand because they are rich in various nutrients such as dietary fiber, vitamins and minerals. Coarse grains include a wide variety of species such as wheat, corn, sorghum, oats, buckwheat and various beans, and their sources are widespread, planting areas are scattered, and growth environments and harvesting conditions are different.
[0003] The current traditional coarse grain screening method is relatively extensive, relying on manual screening or simple screening equipment. Manual screening is inefficient and costly, and cannot meet the demand of large-scale production. Simple screening equipment often lacks screening precision and cannot effectively separate coarse grains of different particle sizes, resulting in uneven product quality and affecting the production quality of coarse grains. Therefore, we propose a screening machine for coarse grain processing to solve the above problems. SUMMARY
[0004] The utility model discloses a screening machine for coarse grain processing which overcomes the shortcomings in the background art.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] The screening machine for coarse grain processing comprises a box body, an inlet and an outlet respectively arranged on the top and the outer side wall of the box body, two fixed grooves arranged on the inner side wall of the box body, and a screening mechanism arranged in the fixed grooves.
[0007] The screening mechanism comprises a material selection assembly and a screening assembly.
[0008] The material selection assembly comprises a plurality of arc-shaped screen plates slidingly connected to the inner side wall of the fixed groove. The inner diameters of the screen holes in the arc-shaped screen plates gradually increase from the inlet to the outlet. The top of the arc-shaped screen plate is connected to the top of the fixed groove by two springs. The outer side walls of two adjacent arc-shaped screen plates are slidingly connected to each other.
[0009] The screening assembly comprises an expansion groove arranged in the bottom of the fixed groove. A plurality of rotating shafts are rotatably connected to the inner side wall of the expansion groove. A plurality of water droplet plates are fixedly sleeved on the rotating shafts. A connecting shaft is rotatably connected to the box body. Two adjacent rotating shafts on the same side are connected by a first chain. The connecting shaft and the adjacent two rotating shafts are connected by a second chain. A motor is fixedly installed on the box body. The output shaft of the motor is fixedly connected to one end of one of the rotating shafts.
[0010] Preferably, two ends of the spring are fixedly connected with the top of the arc-shaped screen plate and the top of the fixed groove respectively.
[0011] Preferably, a first chain disc adapted to the first chain is sleeved on the outer side wall of each of the two adjacent rotating shafts, and a second chain disc adapted to the second chain is sleeved on the connecting shaft and the outer side wall of each of the two adjacent rotating shafts.
[0012] Preferably, a feeding funnel communicating with the feeding port is fixedly installed on the top of the box body, the feeding funnel is located directly above the arc-shaped screen plate with the smallest inner diameter of the screen hole, and a discharging funnel communicating with the discharging port is fixedly installed on the outer side wall of the box body, the discharging funnel is located on one side of the arc-shaped screen plate with the largest inner diameter of the screen hole.
[0013] Preferably, a discharging assembly is arranged below the box body, the discharging assembly comprises a plurality of inclined discharge hoppers fixedly installed on the bottom of the box body, and the discharge directions of the hopper mouths of the two adjacent inclined discharge hoppers are opposite.
[0014] Preferably, the outer side walls of the two adjacent inclined discharge hoppers are fixedly connected.
[0015] Preferably, the inclined discharge hoppers are located directly below the arc-shaped screen plate in the vertical direction.
[0016] The beneficial effects of the utility model are as follows:
[0017] Under the interaction of the box body, the fixed groove, the material selecting assembly, the screen moving assembly and the discharging assembly, the arc-shaped screen plate in the screening mechanism cooperates with the screen moving assembly, can accurately and efficiently screen the coarse cereals according to the particle size, improves the screening quality and precision, ensures the product quality, the reasonable feeding and discharging assemblies and the stable transmission structure optimize the screening process, improve the production efficiency, reduce the labor cost and time cost, and provide strong support for the large-scale and fine production of the coarse cereal processing industry. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The utility model provides a structure diagram of the screening machine for coarse cereal processing.
[0019] Figure 2 The utility model provides a top view of multiple arc-shaped screen plates in the screening machine for coarse cereal processing.
[0020] Figure 3 The utility model provides a side sectional view of the expansion groove in the screening machine for coarse cereal processing.
[0021] Figure 4 The utility model provides a top view of the screening machine for coarse cereal processing.
[0022] In the figure: 1, box; 2, feed inlet; 3, discharge outlet; 4, fixed groove; 5, arc screen plate; 6, spring; 7, expansion groove; 8, rotating shaft; 9, water droplet plate; 10, connecting shaft; 11, first chain; 12, second chain; 13, motor; 14, feed hopper; 15, discharge hopper; 16, inclined discharge hopper. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0024] Referring to Figures 1-4 , the screening machine for processing coarse grains comprises a box 1 and a feed inlet 2 and a discharge outlet 3 respectively arranged on the top and the outer side wall of the box 1, two fixed grooves 4 are arranged on the inner side wall of the box 1, and a screening mechanism is arranged in the fixed groove 4;
[0025] It is further explained that the screening mechanism comprising the material selecting assembly and the screen moving assembly can finely and effectively screen the coarse grains.
[0026] As shown in Figure 1 and Figure 2 , the material selecting assembly comprises a plurality of arc screen plates 5 slidingly connected to the inner side wall of the fixed groove 4, the inner diameter of the screen hole of the arc screen plate 5 gradually increases along the direction from the feed inlet 2 to the discharge outlet 3, the top of the arc screen plate 5 and the inner top of the fixed groove 4 are connected by two springs 6, and the outer side walls of the adjacent two arc screen plates 5 are slidingly connected to each other.
[0027] It is further explained that the plurality of arc screen plates 5 in the material selecting assembly are slidingly connected to the inner side wall of the fixed groove 4, and the inner diameter of the screen hole gradually increases along the direction from the feed inlet 2 to the discharge outlet 3, so that the coarse grains of different particle sizes can be gradually screened and separated, the small-particle-size impurities or coarse grains are screened out first, the large-particle-size ones are sequentially screened out, and the accuracy and comprehensiveness of the screening are improved.
[0028] As shown in Figure 4 , the top of the box 1 is fixedly provided with a feed hopper 14 in communication with the feed inlet 2, the feed hopper 14 is located directly above the arc screen plate 5 with the smallest inner diameter of the screen hole, and the outer side wall of the box 1 is fixedly provided with a discharge hopper 15 in communication with the discharge outlet 3, and the discharge hopper 15 is located on one side of the arc screen plate 5 with the largest inner diameter of the screen hole.
[0029] Further illustrate, such design can facilitate, accurate guide to be screened coarse grains to the initial position of screening, ensure that coarse grains can be designed in good order arc screen plate 5 screening, box 1 outside wall on the discharge funnel 15 and discharge port 3 communication and located in the largest arc screen plate 5 screen hole inner diameter side, facilitate screening after different specifications of coarse grains or impurities can smoothly discharge box 1, realize the orderly collection and subsequent processing of screened material, improve the convenience and rationality of the whole screening process.
[0030] As shown in Figure 1 and Figure 3 , the screen assembly includes the expansion slot 7 opened in the fixed groove 4 inner bottom, the expansion slot 7 inner wall is rotatably connected with a plurality of shafts 8, the shaft 8 is fixedly sleeved with a plurality of water drop plates 9, the box 1 is rotatably connected with a connecting shaft 10, the same side between two adjacent shafts 8 is drivenly connected through the first chain 11, the connecting shaft 10 and the adjacent two shafts 8 are drivenly connected through the second chain 12, the box 1 is fixedly installed with a motor 13, the motor 13 output shaft and one end of the shaft 8 are fixedly connected.
[0031] Further illustrate, the screen assembly utilizes a plurality of shafts 8, water drop plates 9 and first chain 11 and second chain 12 transmission structure, which can make the arc screen plate 5 produce regular screening action under the driving of the motor 13, promote the coarse grains to roll and move better on the arc screen plate 5, further improve the screening efficiency and ensure the screening quality.
[0032] As shown in Figure 3 , both ends of the spring 6 are fixedly connected with the top of the arc screen plate 5 and the inner top of the fixed groove 4.
[0033] Further illustrate, such fixed connection mode ensures that the spring 6 can stably provide elastic support force for the arc screen plate 5, and the spring 6 can reset the arc screen plate 5 in time when the screen assembly drives the arc screen plate 5 to vibrate and screen, so as to maintain stable vibration screening state, and also helps to buffer the impact force generated by vibration, reduces the wear of parts and prolongs the service life of the screening mechanism.
[0034] As shown in Figure 4 , the outer side wall of the adjacent two shafts 8 is sleeved with the first chain disc matched with the first chain 11, and the outer side wall of the connecting shaft 10 and the adjacent two shafts 8 is sleeved with the second chain disc matched with the second chain 12.
[0035] Further illustrate, this transmission mode through chain disc and chain cooperation can ensure the accuracy and stability of transmission, and can efficiently transmit the power of the motor 13 to each shaft 8, so that the water drop plates 9 on each shaft 8 rotate synchronously, thereby coordinately driving the arc screen plate 5 to produce regular screening, ensuring the smooth and orderly screening of the whole screening machine.
[0036] As Figure 1 shown, the box 1 below is provided with a discharge assembly, the discharge assembly includes a plurality of inclined discharge hopper 16 fixedly installed at the bottom of the box 1, the hopper of adjacent two inclined discharge hopper 16 is opposite in discharge direction.
[0037] Further illustrate, such design is beneficial to the collection and guide of the different direction of the grain or impurities falling after screening by different arc screen mesh plate 5, facilitate subsequent classification processing, storage and other operations of different specifications of materials, improve the fine degree of material classification collection in the whole grain screening process.
[0038] As Figure 1 shown, the outer wall of adjacent two inclined discharge hopper 16 is fixedly connected.
[0039] Further illustrate, enhance the structural stability of the discharge assembly as a whole, so that it is not easy to cause structural deformation or position deviation due to material impact and other reasons in the process of long time bearing the grain and other materials falling from the arc screen mesh plate 5, ensure that the discharge assembly can reliably complete the guide and collection of materials, maintain the normal operation of the discharge link of the whole screening machine.
[0040] As Figure 1 shown, the vertical direction inclined discharge hopper 16 is located directly below the arc screen mesh plate 5.
[0041] Further illustrate, ensure that the grain or impurities falling from the arc screen mesh plate 5 can accurately fall into the corresponding inclined discharge hopper 16, avoid material scattering or entering the wrong collection area, improve the accuracy of material collection, make the screening and discharge process of the whole screening machine cooperate more closely and efficiently.
[0042] The utility model can be described by the following operation mode to explain its function principle:
[0043] Start the equipment: connect the power supply of motor 13, start motor 13, make motor 13 begin to run, and the output shaft of motor 13 drives one of the rotating shafts 8 fixedly connected with it to rotate, and through the transmission of first chain 11 and first chain disc, the adjacent rotating shaft 8 on the same side is driven to rotate synchronously, and through the transmission of second chain 12 and second chain disc, the connecting shaft 10 and the adjacent two rotating shafts 8 are driven to rotate, so that the water droplet plate 9 on all rotating shafts 8 begins to rotate, providing vibration source for screening work.
[0044] Feeding: pour the grain to be screened into the feeding hopper 14, and the grain enters the box 1 inside along the hopper and falls on the arc screen mesh plate 5 with the smallest inner diameter of the sieve hole, because the inner diameter of the sieve hole of the plurality of arc screen mesh plates 5 gradually increases along the feeding port 2 to the discharge port 3 direction, so the grain will first be preliminarily screened on the arc screen mesh plate 5 with the smallest sieve hole on one side.
[0045] Screening process:
[0046] With the rotation of the water droplet plate 9, the water droplet plate 9 will abut against the arc-shaped screen plate 5 in the fixed groove 4, so that the arc-shaped screen plate 5 is vibrated, and then the vibration is transmitted to the arc-shaped screen plate 5, causing the vibration of the arc-shaped screen plate 5. At the same time, since the top of the arc-shaped screen plate 5 and the top of the fixed groove 4 are connected by two springs 6, the springs 6 will assist the arc-shaped screen plate 5 to slide up and down on the inner side wall of the fixed groove 4, further enhancing the screening effect.
[0047] During the screening process, the coarse grains with a particle size smaller than the screen hole of the current arc-shaped screen plate 5 will fall through the screen hole and fall into the inclined discharge hopper 16 below, while the coarse grains with a particle size larger than the screen hole of the current arc-shaped screen plate 5 will be left on the arc-shaped screen plate 5 and gradually move to the arc-shaped screen plate 5 with a larger screen hole under the vibration and the subsequent pushing of the coarse grains, for further screening.
[0048] The outer side walls of the two adjacent arc-shaped screen plates 5 are slidably connected to each other, which enables them to maintain a stable relative position during vibration and material pushing, and also helps the transition screening of the materials between different arc-shaped screen plates 5, preventing the materials from leaking or being stuck between the arc-shaped screen plates 5.
[0049] Discharging:
[0050] After multiple screenings, the coarse grains of different particle size ranges fall through the screen holes of the corresponding arc-shaped screen plates 5 and into the corresponding inclined discharge hoppers 16. Since the discharge directions of the hopper mouths of the two adjacent inclined discharge hoppers 16 are opposite, the materials of different specifications will be guided in different directions, facilitating collection and subsequent separate processing.
[0051] The larger impurities or large-particle-size materials that do not pass through the screen holes of any arc-shaped screen plate 5 will eventually move to one side of the arc-shaped screen plate 5 with the largest screen hole under the vibration of the arc-shaped screen plate 5 and the pushing of the materials, and then be discharged from the discharge port 3 of the box body 1 into the discharge funnel 15 connected thereto, realizing separation and collection from the screened qualified coarse grains.
[0052] Turning off the equipment: when all the coarse grains to be screened are screened, turn off the power supply of the motor 13 to stop the operation of the motor 13. After the equipment completely stops running, clean up the small amount of residual materials in the equipment to complete the screening work.
[0053] The above description is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A screening machine for processing coarse grains, comprising a box body (1) and a feeding port (2) and a discharging port (3) respectively arranged on the top and the lateral wall of the box body (1), characterized in that, Two fixed slots (4) are formed in the inner side wall of the box (1), and a screening mechanism is arranged in the fixed slots (4); The screening mechanism comprises a material selecting assembly and a screening moving assembly; The material selecting assembly comprises a plurality of arc-shaped screen plates (5) which are slidably connected to the inner side wall of the fixed slots (4), the inner diameters of the screen holes of the arc-shaped screen plates (5) gradually increase from the inlet (2) to the outlet (3), the top of the arc-shaped screen plate (5) and the inner top of the fixed slot (4) are connected by two springs (6), and the outer side walls of two adjacent arc-shaped screen plates (5) are slidably connected to each other. The screening moving assembly comprises an expansion slot (7) formed in the bottom of the fixed slot (4), a plurality of rotating shafts (8) are rotatably connected to the inner side wall of the expansion slot (7), a plurality of water drop plates (9) are fixedly sleeved on the rotating shafts (8), a connecting shaft (10) is rotatably connected to the box (1), the first chain (11) is drivingly connected between two adjacent rotating shafts (8) on the same side, the second chain (12) is drivingly connected between the connecting shaft (10) and two adjacent rotating shafts (8), and a motor (13) is fixedly installed on the box (1), and the output shaft of the motor (13) is fixedly connected to the end of one of the rotating shafts (8).
2. The machine for screening of coarse cereals according to claim 1, characterized in that, The two ends of the spring (6) are fixedly connected to the top of the arc-shaped screen plate (5) and the inner top of the fixed slot (4) respectively.
3. The machine according to claim 1, wherein First chain discs matched with the first chain (11) are sleeved on the outer side walls of the two adjacent rotating shafts (8), and second chain discs matched with the second chain (12) are sleeved on the outer side walls of the connecting shaft (10) and the two adjacent rotating shafts (8).
4. The machine for screening grains according to claim 1, characterized in that, A feeding funnel (14) which is in communication with the inlet (2) is fixedly installed on the top of the box (1), the feeding funnel (14) is located directly above the arc-shaped screen plate (5) with the smallest inner diameter of the screen hole, a discharging funnel (15) which is in communication with the outlet (3) is fixedly installed on the outer side wall of the box (1), and the discharging funnel (15) is located on one side of the arc-shaped screen plate (5) with the largest inner diameter of the screen hole.
5. The machine for screening grains according to claim 1, characterized in that, A discharging assembly is arranged below the box (1), the discharging assembly comprises a plurality of inclined discharge hoppers (16) which are fixedly installed on the bottom of the box (1), and the discharge directions of the hopper mouths of two adjacent inclined discharge hoppers (16) are opposite.
6. The machine according to claim 5, characterized in that, The outer side walls of two adjacent inclined discharge hoppers (16) are fixedly connected.
7. The machine according to claim 5, wherein The inclined discharge hoppers (16) are located directly below the arc-shaped screen plates (5) in the vertical direction.