A wheat screening device
By employing a dual-layer screening mechanism and automated drive, the problem of existing wheat screening devices being unable to remove impurities and requiring laborious extraction has been solved, achieving efficient screening and automated collection, thereby improving wheat quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU ZHENDA FOOD CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-29
AI Technical Summary
Existing wheat screening devices are ineffective at removing impurities of varying sizes, and the process of removing the screened wheat is laborious, affecting wheat quality and production efficiency.
It adopts a dual-layer screening mechanism, including a large screen and a small screen, which is driven by a vibration motor and a servo motor to achieve multi-stage screening and rotational collection, removing large and small impurities respectively, and using a spring and telescopic rod structure to improve screening efficiency and automate wheat collection.
It improves the quality of wheat by effectively removing impurities through double-layer screening and enables automated wheat collection, reducing manual operation and improving production efficiency.
Smart Images

Figure CN224293920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wheat screening technology, and in particular to a wheat screening device. Background Technology
[0002] Noodle flour typically refers to the special flour used to make noodles. Before making flour, wheat needs to be screened because various impurities, such as stones, soil, straw, and metal objects, can get mixed in during the wheat's growth, harvesting, transportation, and storage. If these impurities are not removed, they will affect the purity and taste of the flour, lowering its quality grade. Wheat screening devices can remove these impurities and improve wheat quality.
[0003] In the process of realizing this application, the inventors discovered the following problems with the prior art: Existing wheat screening devices generally include structures such as screening mechanism, support mechanism, and fixing mechanism. Most existing screening mechanisms use a single sieve for screening. When faced with impurities of different sizes, it is difficult for a single sieve to remove the impurities, and the quality of wheat is difficult to improve significantly. At the same time, after screening, existing wheat is mostly removed manually from the sieve, which is a troublesome and laborious process.
[0004] Therefore, those skilled in the art have provided a wheat screening device to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wheat screening device. The screening mechanism can improve the quality of wheat, and the rotating mechanism can improve the overall production efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wheat screening device, comprising a screening mechanism and a rotating mechanism, wherein the screening mechanism includes a large screen and a small screen, wherein multiple first springs are fixedly connected to the bottom of the large screen away from the center, and multiple second springs are fixedly connected to the bottom of the small screen away from the center, wherein a first frame is fixedly provided at the bottom of the multiple first springs, and a second frame is fixedly connected to the bottom of the multiple second springs, and a vibration motor is fixedly provided on the rear end face of both the large screen and the small screen;
[0007] The rotating mechanism includes a U-shaped frame, two support plates, and a collection groove. A rotating column is rotatably mounted on the inner wall of the rear end of the U-shaped frame. The outer wall of the support plate located at the rear end is fixedly connected to the rear end face of the rotating column. A servo motor is fixedly connected to the inner wall of the support plate located at the front end of the two support plates. The output end of the servo motor is fixedly connected to the center of the front end of the U-shaped frame.
[0008] Furthermore, the inner wall of the spiral frame is slidably connected to the outer wall of the small mesh screen, and the inner wall of the spiral frame near the bottom is fixedly connected to the outer wall of the second frame.
[0009] Furthermore, the top of the two support plates is fixedly connected to the front and back of the first frame, and a top plate is fixedly installed on one side of the top of the collection trough. The upper end of the top plate is located on the lower side of the loop frame to support the loop frame.
[0010] Furthermore, multiple card plates are fixedly installed at the top of the collection tank away from the top plate, and hooks are fixedly installed on the outer walls of the multiple card plates.
[0011] Furthermore, multiple No. 1 springs are movably connected to the inner walls of multiple No. 1 telescopic rods, the tops of multiple No. 1 telescopic rods are fixedly connected to the bottom of the large screen away from the center, and the bottoms of multiple No. 1 telescopic rods are fixedly connected to the top of the No. 1 frame away from the center.
[0012] Furthermore, multiple second-generation springs are movably connected to the inner walls of the second-generation springs, and the tops of the multiple second-generation springs are fixedly connected to the bottom of the small screen away from the center, and the bottoms of the multiple second-generation springs are fixedly connected to the top of the second frame away from the center.
[0013] Furthermore, the bottom of the two support plates is fixedly connected to the front and rear ends of the top of the collection trough.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model proposes a wheat screening device. Wheat enters a large mesh screen, and a vibrating motor causes the large mesh screen to move up and down along multiple No. 1 springs and multiple No. 1 telescopic rods, causing the wheat and smaller impurities to flow into a small mesh screen at the bottom. Then, when the vibrating motor at the rear end of the small mesh screen starts working, the small mesh screen moves up and down along multiple No. 2 springs, multiple No. 2 telescopic rods, and the inner wall of the U-shaped frame, screening the smaller impurities into the bottom collection trough, leaving the plump wheat grains inside the small mesh screen. Through two screenings, both larger and smaller impurities can be removed, improving the quality of the wheat.
[0016] 2. The wheat screening device proposed in this utility model first fixes the bag on multiple hooks, then the servo motor starts to work. The output end of the servo motor drives the loop frame, multiple No. 2 springs, multiple No. 2 telescopic rods, and small screen to rotate to the left along the rotating column, pouring the wheat inside into the pre-arranged bag for collection. All the wheat is collected at once, without the need for manual removal of the wheat bit by bit. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;
[0019] Figure 3 This is a schematic diagram of the screening mechanism structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the screening mechanism of this utility model from another perspective.
[0021] Legend:
[0022] 1. Screening mechanism; 2. Rotating mechanism; 3. Servo motor; 101. Large screen; 102. Frame 1; 103. Small screen; 104. Vibration motor; 105. Spring 1; 106. Telescopic rod 1; 107. Frame 2; 108. Spring 2; 109. Telescopic rod 2; 201. U-shaped frame; 202. Support plate; 203. Top plate; 204. Collection trough; 205. Card plate; 206. Hook; 207. Rotating column. Detailed Implementation
[0023] 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.
[0024] Reference Figures 1-4 This utility model provides an embodiment of a wheat screening device, comprising a screening mechanism 1 and a rotating mechanism 2. The screening mechanism 1 includes a large mesh screen 101 and a small mesh screen 103. Multiple first-order springs 105 are fixedly connected to the bottom of the large mesh screen 101 away from the center. Multiple second-order springs 108 are fixedly connected to the bottom of the small mesh screen 103 away from the center. A first-order frame 102 is fixedly installed at the bottom of each first-order spring 105, and a second-order frame 107 is fixedly connected to the bottom of each second-order spring 108. The large mesh screen 101... Vibration motors 104 are fixedly installed on the rear end face of both the small screen 103 and the rotating mechanism 2. The rotating mechanism 2 includes a loop frame 201, two support plates 202, and a collection trough 204. A rotating column 207 is rotatably installed on the inner wall of the rear end of the loop frame 201. The outer wall of the support plate 202 located at the rear end is fixedly connected to the rear end face of the rotating column 207. A servo motor 3 is fixedly connected to the inner wall of the support plate 202 located at the front end. The output end of the servo motor 3 is fixedly connected to the center of the front end of the loop frame 201.
[0025] Specifically, wheat is placed inside the large mesh screen 101. The vibration motor 104 at the top operates. When the vibration motor 104 rotates at high speed via the eccentric block on the rotating shaft, centrifugal force is generated because the center of gravity of the eccentric block deviates from the center of the rotating shaft. This centrifugal force causes the motor to vibrate periodically, thereby driving the large mesh screen 101 to move up and down along multiple No. 1 springs 105 and multiple No. 1 telescopic rods 106 at the bottom. Because the mesh of the large mesh screen 101 is relatively large, it can retain larger impurities, while the wheat and smaller impurities flow into the small mesh screen 103 at the bottom. The vibration motor 104 at the rear end of the small mesh screen 103 operates, causing the small mesh screen 103 to move up and down along multiple No. 2 springs 108 at the bottom. Multiple telescopic rods 109 and the inner wall of the U-shaped frame 201 move up and down, sifting smaller impurities into the bottom collection trough 204 for collection. The combination of the large mesh screen 101 and the small mesh screen 103 can improve the quality of wheat. At this time, only wheat remains in the small mesh screen 103. First, the bag is fixed on multiple hooks 206, and then the servo motor 3 is activated. The output end of the servo motor 3 drives the U-shaped frame 201, multiple springs 108, multiple telescopic rods 109, and the small mesh screen 103 to rotate to the left along the rotating column 207, pouring the wheat inside into the pre-arranged bag for collection. There is no need for workers to take out the wheat bit by bit, which increases the overall production efficiency.
[0026] Reference Figures 1-4 The inner wall of the U-shaped frame 201 is slidably connected to the outer wall of the small mesh screen 103. The inner wall of the U-shaped frame 201 near the bottom is fixedly connected to the outer wall of the second frame 107. The top of the two support plates 202 near the first frame 102 is fixedly connected to the front and back of the first frame 102. A top plate 203 is fixedly installed on one side of the top of the collection trough 204. The upper end of the top plate 203 is located on one side of the lower end of the U-shaped frame 201 and supports the U-shaped frame 201. Multiple clamping plates 205 are fixedly installed on the top of the collection trough 204 away from the top plate 203. Hooks 206 are fixedly installed on the outer wall of each clamping plate 205. Multiple first springs 10 5. The inner wall is movably connected to a first telescopic rod 106. The top of multiple first telescopic rods 106 is fixedly connected to the bottom of the large screen 101 away from the center. The bottom of multiple first telescopic rods 106 is fixedly connected to the top of the first frame 102 away from the center. Multiple second springs 108 are movably connected to second telescopic rods 109. The top of multiple second telescopic rods 109 is fixedly connected to the bottom of the small screen 103 away from the center. The bottom of multiple second telescopic rods 109 is fixedly connected to the top of the second frame 107 away from the center. The bottom of the two support plates 202 is fixedly connected to the front and rear ends of the top of the collection trough 204.
[0027] Specifically, the U-shaped frame 201 provides fixation and support for the second frame 107, the two support plates 202 provide fixation and support for the first frame 102, the top plate 203 can provide support for the U-shaped frame 201 when it is not rotating, the multiple clamping plates 205 provide fixation and support for the hook 206, the multiple first telescopic rods 106 can prevent the multiple first springs 105 from tilting, ensuring that they can only move up and down, the multiple second telescopic rods 109 prevent the multiple second springs 108 from tilting, and the collection trough 204 provides fixation and support for the two support plates 202.
[0028] Working principle: Wheat is poured into the large mesh screen 101. The vibration motor 104 at the top is started, which drives the large mesh screen 101 to move up and down along multiple No. 1 springs 105 and multiple No. 1 telescopic rods 106 at the bottom. When the wheat and smaller impurities flow into the small mesh screen 103 at the bottom, the vibration motor 104 at the rear end of the small mesh screen 103 is started, which drives the small mesh screen 103 to move up and down along multiple No. 2 springs 108 and multiple No. 2 telescopic rods 109 at the bottom and the inner wall of the U-shaped frame 201, so that the smaller impurities are screened out and enter the collection tank 204 at the bottom.
[0029] Secondly, when only wheat remains in the small mesh sieve 103, the bag is fixed to the hook 206 of the multiple card plates 205, and then the servo motor 3 is started. Its output end drives the loop frame 201, multiple second springs 108 and multiple second telescopic rods 109, and the small mesh sieve 103 to rotate to the left along the rotating column 207, so that the wheat inside is poured into the pre-arranged bag for collection.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wheat screening device, comprising a screening mechanism (1) and a rotating mechanism (2), characterized in that: The screening mechanism (1) includes a large screen (101) and a small screen (103). Multiple first springs (105) are fixedly connected to the bottom of the large screen (101) away from the center. Multiple second springs (108) are fixedly connected to the bottom of the small screen (103) away from the center. A first frame (102) is fixedly installed at the bottom of the multiple first springs (105). A second frame (107) is fixedly connected to the bottom of the multiple second springs (108). A vibration motor (104) is fixedly installed on the rear end face of both the large screen (101) and the small screen (103). The rotating mechanism (2) includes a spiral frame (201), two support plates (202), and a collection trough (204). A rotating column (207) is rotatably provided on the inner wall of the rear end of the spiral frame (201). The outer wall of the support plate (202) located at the rear end is fixedly connected to the rear end face of the rotating column (207). A servo motor (3) is fixedly connected to the inner wall of the support plate (202) located at the front end. The output end of the servo motor (3) is fixedly connected to the center of the front end of the spiral frame (201).
2. The wheat screening device according to claim 1, characterized in that: The inner wall of the spiral frame (201) is slidably connected to the outer wall of the small mesh screen (103), and the inner wall of the spiral frame (201) is fixedly connected to the outer wall of the second frame (107) near the bottom.
3. The wheat screening device according to claim 1, characterized in that: The top of the two support plates (202) is fixedly connected to the front and back of the first frame (102) on the side near the first frame (102). A top plate (203) is fixedly installed on one side of the top of the collection trough (204). The upper end of the top plate (203) is located on the lower side of the loop frame (201) to support the loop frame (201).
4. The wheat screening device according to claim 1, characterized in that: Multiple card plates (205) are fixedly installed at the top of the collection trough (204) away from the top plate (203), and hooks (206) are fixedly installed on the outer walls of the multiple card plates (205).
5. A wheat screening device according to claim 1, characterized in that: Multiple first springs (105) are movably connected to the inner walls of multiple first telescopic rods (106). The tops of multiple first telescopic rods (106) are fixedly connected to the bottom of the large screen (101) away from the center. The bottoms of multiple first telescopic rods (106) are fixedly connected to the top of the first frame (102) away from the center.
6. The wheat screening device according to claim 1, characterized in that: Multiple second springs (108) are movably connected to the inner walls of multiple second telescopic rods (109). The tops of multiple second telescopic rods (109) are fixedly connected to the bottom of the small screen (103) away from the center. The bottoms of multiple second telescopic rods (109) are fixedly connected to the top of the second frame (107) away from the center.
7. A wheat screening device according to claim 1, characterized in that: The bottom of the two support plates (202) is fixedly connected to the front and rear ends of the top of the collection trough (204).