Screening device for grain purchasing
By introducing conical components and vibration mechanisms into the grain purchasing device, the problem of traditional screening devices being unable to effectively remove dust has been solved, achieving integrated high-efficiency screening and dust removal, and improving grain screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI TIANMEN QINGLONG RICE IND CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional screening devices cannot effectively remove dust from the surface of grains, resulting in low screening efficiency and the need for additional dust removal processes, which wastes manpower.
A screening device for grain purchasing was designed, comprising a conical component and a vibration mechanism. The grain impacts the conical component, raising dust which is then discharged through a dust discharge pipe. Simultaneously, the vibrating screen removes larger impurities, and finally, clean grain is discharged through the discharge port.
It effectively removes dust from the grain surface, saves on the ash removal process, and improves screening efficiency.
Smart Images
Figure CN224208543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening device technology, specifically a screening device for grain purchasing. Background Technology
[0002] Grains refer to the general term for various plant seeds used in cooking, and can also be broadly referred to as "cereals". Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, starch, etc. Grains are often screened by screening devices before being purchased.
[0003] Traditional screening devices simply shake the grain a few times, which does not achieve efficient screening. Often, after shaking, dust remains on the surface of the grain, which cannot be removed, often requiring subsequent dust removal processes, which consume manpower and reduce the efficiency of grain screening. Therefore, a screening device for grain purchasing is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a screening device for grain purchasing, which has the advantage of improving grain screening efficiency and solves the technical problem of not being able to effectively treat dust on the surface of grain.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A grain screening device includes a screening box with a feed inlet at the top and a dust discharge pipe on one side of the screening box. The dust discharge pipe is located above the interior of the screening box. A conical assembly is located above the interior of the screening box and is fixed inside the screening box by a connecting rod. The conical assembly includes a small conical part and a large conical part connected below the small conical part. A vibration mechanism is located below the conical assembly, and a discharge port is located at the bottom of the screening box.
[0007] Furthermore, a driving component is provided inside the large conical component, and the output end of the driving component is connected to the bottom of the small conical component.
[0008] Furthermore, the vibration mechanism includes a fixing member with a through hole in the middle, a vibrating screen is slidably connected to the fixing member, and a driving mechanism for driving the vibrating screen to rotate back and forth is provided on the fixing member.
[0009] Furthermore, the driving mechanism includes a second driving component fixedly mounted on the fixed member, an incomplete gear fixedly connected to the second driving component, a gear ring meshing with the incomplete gear on the outer periphery of the vibrating screen, a vibrating element at the bottom of the vibrating screen, and an annular groove on the upper surface of the fixed member, a connecting member fixedly connected to the vibrating element, and springs at both ends of the connecting member.
[0010] Furthermore, a door is provided on the outside of the screening box.
[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects: the device sets a conical component in the screening box. After the grain is put into the screening box through the feed inlet, the grain hits the small cone and the large cone in the conical component in sequence. The impact lifts the dust attached to the surface of the grain and discharges it through the dust discharge pipe. The device can effectively treat the dust on the surface of the grain, save the subsequent ash removal process, and improve the efficiency of grain screening. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the vibration mechanism structure of this utility model;
[0015] Figure 4 for Figure 2 Enlarged view of point A;
[0016] Figure 5 for Figure 3 Enlarged view of point B.
[0017] In the diagram: 1-Screening box; 2-Feed inlet; 3-Dust exhaust pipe; 4-Discharge outlet; 5-Conical assembly; 51-Small conical component; 52-Large conical component; 6-Vibration mechanism; 61-Fixing component; 610-Annular groove; 62-Vibrating screen; 63-Drive mechanism; 631-Drive component two; 632-Incomplete gear; 633-Gear ring; 634-Vibrating component; 635-Connecting component; 636-Spring; 7-Drive component one; 8-Door body. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] Please see Figure 1-2This embodiment of a grain purchasing screening device includes a screening box 1, a feed inlet 2 at the top of the screening box 1, a dust discharge pipe 3 on one side of the screening box 1, the dust discharge pipe 3 being located inside the upper part of the screening box 1, a conical component 5 being provided inside the upper part of the screening box 1, the conical component 5 being fixed inside the screening box 1 by a connecting rod, the conical component 5 including a small conical part 51, a large conical part 52 being connected below the small conical part 51, a vibration mechanism 6 being provided below the conical component 5, and a discharge port 4 being provided at the bottom of the screening box 1.
[0020] In this application, the device feeds grain through the inlet 2, where it sequentially impacts the small conical component 51 and the large conical component 52, generating a large amount of dust. This dust is then discharged through the dust discharge pipe 3. The grain, after impacting the conical components 5, falls onto the vibration mechanism 6, and after being sieved by the vibration mechanism 6, it is finally discharged from the outlet 4, thus completing the grain screening process. This effectively treats the dust on the grain surface, saving on subsequent dust removal processes and improving the efficiency of grain screening.
[0021] Furthermore, a drive component 7 is provided inside the large conical component 52, and the output end of the drive component 7 is connected to the bottom of the small conical component 51.
[0022] like Figure 2 As shown: In this application, the device controls the up and down movement of the small conical part 51 through the drive component 7, so that the small conical part 51 can enter the feed inlet 2, and the rate of grain input can be controlled by the depth of the small conical part 51 entering the feed inlet 2.
[0023] Furthermore, the vibration mechanism 6 includes a fixing member 61 with a through hole in the middle, a vibrating screen 62 is slidably connected to the fixing member 61, and a drive mechanism 63 for driving the vibrating screen 62 to rotate back and forth is provided on the fixing member 61.
[0024] like Figure 3 As shown: In this application, the device uses a vibration mechanism 6. After the grain is dusted, it falls into the vibration mechanism 6. Under the action of the drive mechanism 63, the vibrating screen 62 rotates back and forth to complete the screening of larger impurities in the grain. The screened grain is finally discharged from the discharge port 4.
[0025] Furthermore, the drive mechanism 63 includes a second drive component 631 fixedly mounted on the fixed member 61. An incomplete gear 632 is fixedly connected to the second drive component 631. A gear ring 633 that meshes with the incomplete gear 632 is provided on the outer periphery of the vibrating screen 62. A vibrating element 634 is provided at the bottom of the vibrating screen 62, and an annular groove 610 is provided opposite to the upper surface of the fixed member 61. A connecting member 635 is fixedly connected to the vibrating element 634, and springs 636 are respectively provided at both ends of the connecting member 635.
[0026] like Figure 3-5As shown: In this application, the device drives the incomplete gear 632 to rotate through the second drive component 631, thereby intermittently driving the vibrating screen 62 to rotate. While the second drive component 631 drives the incomplete gear 632 to rotate, the vibrating component 634 moves, thereby causing the spring 636 to stretch. After stretching to a certain extent, the spring contracts, and the vibrating component 634 strikes the annular groove 610, thereby achieving the screening of larger impurities through vibration.
[0027] Furthermore, a door 8 is provided on the outside of the screening box 1.
[0028] like Figure 1 As shown: In this application, after the door 8 is opened, the device can periodically clean the impurities inside the vibrating screen 62, thus avoiding the clogging of the filter holes of the vibrating screen 62.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A screening device for grain purchasing, comprising a screening box (1), wherein a feed inlet (2) is provided on the top of the screening box (1), and a dust discharge pipe (3) is provided on one side of the screening box (1), wherein the dust discharge pipe (3) is located above the interior of the screening box (1), characterized in that: A conical component (5) is provided at the top inside the screening box (1). The conical component (5) is fixed inside the screening box (1) by a connecting rod. The conical component (5) includes a small conical part (51). A large conical part (52) is connected below the small conical part (51). A vibration mechanism (6) is provided below the conical component (5). A discharge port (4) is provided at the bottom of the screening box (1).
2. The screening device for grain purchasing according to claim 1, characterized in that: The large conical component (52) is provided with a drive component (7), and the output end of the drive component (7) is connected to the bottom of the small conical component (51).
3. The screening device for grain purchasing according to claim 1, characterized in that: The vibration mechanism (6) includes a fixing member (61) with a through hole in the middle, a vibrating screen (62) is slidably connected to the fixing member (61), and a driving mechanism (63) for driving the vibrating screen (62) to rotate back and forth is provided on the fixing member (61).
4. The screening device for grain purchasing according to claim 3, characterized in that: The driving mechanism (63) includes a second driving component (631) fixedly mounted on the fixed component (61). An incomplete gear (632) is fixedly connected to the second driving component (631). A gear ring (633) meshing with the incomplete gear (632) is provided on the outer periphery of the vibrating screen (62). A vibrating component (634) is provided at the bottom of the vibrating screen (62), and an annular groove (610) is provided opposite to the upper surface of the fixed component (61). A connecting component (635) is fixedly connected to the vibrating component (634), and springs (636) are respectively provided at both ends of the connecting component (635).
5. A screening device for grain purchasing according to claim 1, characterized in that: The screening box (1) has a door (8) on its outside.