Bean particle size screening machine

By designing a screw and auger structure in the bean screening machine, the size of the screen holes can be flexibly adjusted, solving the screening complexity and cost problems caused by fixed screen holes and improving the applicability of the equipment to multiple specifications.

CN224237518UActive Publication Date: 2026-05-15MEIZHOU JINLV FEED CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MEIZHOU JINLV FEED CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing bean screening machines have fixed screen hole sizes, which cannot be adjusted according to the size of the bean particles, resulting in increased screening complexity and cost.

Method used

A bean particle size screening machine was designed. By rotating the screw block, the screw is rotated, which pushes the adjusting plate to move along the sliding rod, so as to flexibly control the size of the screen holes to meet the screening needs of beans with different particle sizes.

Benefits of technology

The process of adjusting the screening size has been simplified, enabling single-time matching of aperture and improving the equipment's applicability to materials of various specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of screening equipment, in particular to a bean particle size screening machine which comprises a bottom plate. The top of the bottom plate is fixedly connected with the screening box, the left side of the screening box is provided with the conveying assembly, the exterior of the screening box is fixedly connected with a mounting frame, the exterior of the mounting frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a double-end cam rod, and the interior of the screening box is fixedly connected with an inclined plate; a limiting rod is fixedly connected into the screening box. The screw rod can be driven to rotate by rotating the screwing block, the adjusting plate is pushed to move along the sliding rod when the screw rod rotates, and the size of a hole between the adjusting plate and the screen mesh can be flexibly controlled by adjusting the distance between the adjusting plate and the screen mesh so as to meet the screening requirements of beans with different particle sizes. According to the design, the adjusting process of the screening size is simplified, aperture matching can be achieved only through one-time operation, and the applicability of equipment to materials of multiple specifications is improved.
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Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, and in particular to a bean particle size screening machine. Background Technology

[0002] Legumes and legume products are high in protein, generally between 20% and 40%, and have a wide range of nutritional value. Legumes are typically classified into high, medium, and low grades based on their particle size, resulting in significant price differences. Therefore, a legume particle size screening machine is needed to categorize them.

[0003] According to the description in the patent application CN 221772772 U, a bean screening mechanism is disclosed, comprising a screening box with openings at the top and bottom, and a cover plate and a guide plate respectively provided at the opening ends; an arc-shaped screen disposed inside the screening box, maintaining a gap between the screen and the inner wall of the screening box for material passage; a stirring structure disposed inside the screening box, opposite to the arc-shaped screen, used to throw the material inside the arc-shaped screen upwards; and a movable baffle, movably disposed on any inner wall of the screening box to block or open the gap between the arc-shaped screen and the inner wall of the screening box; a fixed baffle is also provided opposite to the movable baffle on the inner wall of the screening box, which is used to block the gap between the arc-shaped screen and the inner wall of the screening box. This screening mechanism can easily screen out stones and dust contained in beans, greatly improving the screening quality.

[0004] Regarding the above description, the applicant believes the following problems exist: While the curved screen and agitation structure allow material within the screen to be thrown upwards for thorough screening, effectively removing impurities and improving screening quality and efficiency, different varieties of beans vary significantly in size. For example, mung beans, soybeans, and black beans range in diameter from a few millimeters to over ten millimeters. The screen plate of this device has fixed hole sizes, meaning this type of non-adjustable screen is only suitable for beans within a specific size range. Screening other sizes of beans would require replacing the entire screen, undoubtedly increasing operational complexity and cost. Utility Model Content

[0005] To overcome the problem of not being able to adjust the sieve according to the size of the beans.

[0006] The technical solution of this utility model is as follows: a bean particle size screening machine, including a base plate; it also includes a screening box and a conveying assembly. The screening box is fixedly connected to the top of the base plate, and the conveying assembly is arranged on the left side of the screening box. A mounting frame is fixedly connected to the outside of the screening box, and a motor is fixedly connected to the outside of the mounting frame. A double-headed cam rod is fixedly connected to the output end of the motor. An inclined plate is fixedly connected inside the screening box, and a limit rod is fixedly connected inside the screening box. A vibrating box is slidably connected to the outside of the limit rod, and a connecting seat is fixedly connected to the outside of the screening box. An I-shaped plate is fixedly connected to the outside of the vibrating box, and an auxiliary screening plate is fixedly connected to the outside of the I-shaped plate away from the vibrating box. A screw block is rotatably connected inside the vibrating box, and a screw rod is fixedly connected to the outside of the screw block. A sliding rod is fixedly connected inside the vibrating box, and an adjusting plate is threadedly connected to the outside of the screw rod. A screen is fixedly connected to the inside of the vibrating box, and a slider is fixedly connected to the outside of the vibrating box. A spring is arranged at the middle position between the outside of the slider and the inside of the screening box.

[0007] Preferably, the connecting seat has a through hole and an I-shaped plate is slidably connected inside the connecting seat through the through hole.

[0008] Preferably, the screening box is provided with a sliding groove, and the slider is slidably connected to the inside of the screening box through the sliding groove.

[0009] Preferably, the adjusting plate has a second through hole, and the adjusting plate is slidably connected to the outside of the sliding rod through the second through hole.

[0010] Preferably, when the adjusting plate slides, the size of the holes between the adjusting plate and the screen is adjusted.

[0011] Preferably, when the double-headed cam rod moves away from the I-shaped plate, the I-shaped plate moves downward; when the double-headed cam rod moves closer to the I-shaped plate, the I-shaped plate moves upward.

[0012] Preferably, the conveying assembly includes a mounting plate, which is fixedly connected to the outside of the screening box. A second motor is fixedly connected to the outer surface of the mounting plate. A first rotating roller is fixedly connected to the output end of the second motor. A transmission belt is driven to the outer surface of the first rotating roller. A second rotating roller is driven to the end of the transmission belt away from the first rotating roller. A baffle is fixedly connected to the inner side of the mounting plate.

[0013] The beneficial effects of this invention are as follows: Rotating the screw block drives the screw to rotate, and the rotating screw pushes the adjusting plate along the sliding rod. By adjusting the distance between the adjusting plate and the screen, the size of the holes between them can be flexibly controlled to adapt to the screening needs of beans with different particle sizes. This design simplifies the adjustment process of the screening size, achieving hole size matching with only a single operation, and improving the equipment's applicability to materials of various specifications. Attached Figure Description

[0014] Figure 1The diagram shown is a schematic representation of the overall structure of this utility model.

[0015] Figure 2 The diagram shown is a partial structural schematic of a bean particle size screening machine according to this utility model;

[0016] Figure 3 The diagram shown is a schematic representation of the internal structure of the screening box of this utility model.

[0017] Figure 4 The diagram shown is a schematic representation of the sieve structure of this utility model.

[0018] Figure 5 The diagram shown is a schematic representation of the structure of the adjustment plate of this utility model.

[0019] Figure 6 The diagram shown is a schematic representation of the conveying component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 21. Screening box; 22. Mounting frame; 23. Motor 1; 24. Connecting seat; 25. Double-headed cam rod; 26. I-beam plate; 27. Inclined plate; 28. Vibration box; 29. ​​Limiting rod; 210. Sliding block; 211. Spring; 212. Tightening block; 213. Screw; 214. Sliding rod; 215. Screen; 216. Adjusting plate; 217. Auxiliary screening plate; 31. Mounting plate; 32. Motor 2; 33. Rotating roller 1; 34. Conveyor belt; 35. Rotating roller 2; 36. Baffle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-6This utility model provides an embodiment of a bean particle size screening machine, including a base plate 1; it also includes a screening box 21 and a conveying assembly. The screening box 21 is fixedly connected to the top of the base plate 1, and the conveying assembly is arranged on the left side of the screening box 21. A mounting frame 22 is fixedly connected to the outside of the screening box 21, and a motor 23 is fixedly connected to the outside of the mounting frame 22. A double-headed cam rod 25 is fixedly connected to the output end of the motor 23. An inclined plate 27 is fixedly connected to the inside of the screening box 21, and a limit rod 29 is fixedly connected to the inside of the screening box 21. A vibrating box 28 is slidably connected to the outside of the limit rod 29. A series of components are fixedly connected to the outside of the screening box 21. A connecting seat 24 and an I-beam plate 26 are fixedly connected to the outside of the vibrating box 28. An auxiliary screening plate 217 is fixedly connected to the outer end of the I-beam plate 26 away from the vibrating box 28. A screw block 212 is rotatably connected inside the vibrating box 28. A screw 213 is fixedly connected to the outside of the screw block 212. A sliding rod 214 is fixedly connected inside the vibrating box 28. An adjusting plate 216 is threadedly connected to the outside of the screw 213. A screen 215 is fixedly connected to the inside of the vibrating box 28. A slider 210 is fixedly connected to the outside of the vibrating box 28. A spring 211 is set at the middle position between the outside of the slider 210 and the inside of the screening box 21. By rotating the screw block... 212, causing the screw 213 to rotate, and the screw 213 will drive the adjusting plate 216 to slide outside the sliding rod 214. At this time, the size of the hole between the adjusting plate 216 and the screen 215 will be adjusted according to the size of the beans being screened. A through hole is provided on the connecting seat 24, and the I-shaped plate 26 is slidably connected to the inside of the connecting seat 24 through the through hole. The connection seat 24 facilitates the sliding of the I-shaped plate 26. A sliding groove is provided on the screening box 21, and the slider 210 is slidably connected to the inside of the screening box 21 through the sliding groove. The screening box 21 facilitates the installation of other components through the foundation. The adjusting plate 216 has a second through hole, and the adjusting plate 216 is slidably connected to the outside of the sliding rod 214 through the second through hole. The adjusting plate 216 is convenient for adjusting the size of the holes in the screen 215. When the adjusting plate 216 slides, the size of the holes between the adjusting plate 216 and the screen 215 is adjusted. The screen 215 is convenient for screening beans. When the double-headed cam rod 25 moves away from the I-shaped plate 26, the I-shaped plate 26 moves downward. When the double-headed cam rod 25 moves close to the I-shaped plate 26, the I-shaped plate 26 moves upward. The double-headed cam rod 25 is convenient for driving the I-shaped plate 26 to move up and down.

[0023] Please see Figure 6In this embodiment, the conveying assembly includes a mounting plate 31, which is fixedly connected to the outside of the screening box 21. A second motor 32 is fixedly connected to the outer surface of the mounting plate 31. A first rotating roller 33 is fixedly connected to the output end of the second motor 32. A transmission belt 34 is driven to the outer surface of the first rotating roller 33. A second rotating roller 35 is driven to the end of the transmission belt 34 away from the first rotating roller 33. A baffle 36 is fixedly connected to the inner side of the mounting plate 31. Due to the presence of the second motor 32, it is beneficial to drive the transmission belt 34 outside the first rotating roller 33 to rotate outside the second rotating roller 35.

[0024] During operation, rotating the screw block 212 causes the screw 213 to rotate. The screw 213 then causes the adjusting plate 216 to slide outside the sliding rod 214. The size of the holes between the adjusting plate 216 and the screen 215 is adjusted according to the size of the beans being screened. The beans to be screened are then placed outside the conveyor belt 34. The motor 32 drives the conveyor belt 34, outside the rotating roller 33, to rotate outside the rotating roller 35, causing the conveyor belt... 34. The beans are transported to the top of the vibrating box 28. The double-headed cam rod 25 is rotated by the motor 23. When the double-headed cam rod 25 moves away from the I-shaped plate 26, the I-shaped plate 26 drives the vibrating box 28 and the auxiliary screening plate 217 to move downward. When the double-headed cam rod 25 approaches one end of the I-shaped plate 26, the I-shaped plate 26 drives the vibrating box 28 and the auxiliary screening plate 217 to move upward. This process is repeated, causing the vibrating box 28 and the auxiliary screening plate 217 to vibrate continuously, thereby screening the beans.

[0025] Through the above steps, rotating the screw block 212 drives the screw 213 to rotate, and the rotation of the screw 213 pushes the adjusting plate 216 to move along the sliding rod 214. By adjusting the distance between the adjusting plate 216 and the screen 215, the size of the holes between them can be flexibly controlled to adapt to the screening needs of beans with different particle sizes. This design simplifies the process of adjusting the screening size, and the aperture matching can be achieved in a single operation, improving the applicability of the equipment to materials of various specifications.

Claims

1. A bean particle size screening machine, comprising a base plate (1); characterized in that: It also includes a screening box (21) and a conveying assembly. The screening box (21) is fixedly connected to the top of the base plate (1). The conveying assembly is provided on the left side of the screening box (21). The screening box (21) is fixedly connected to the outside of the screening box (21). The mounting frame (22) is fixedly connected to the outside of the mounting frame (22). A motor (23) is fixedly connected to the outside of the mounting frame (22). A double-headed cam rod (25) is fixedly connected to the output end of the motor (23). An inclined plate (27) is fixedly connected to the inside of the screening box (21). A limit rod (29) is fixedly connected to the inside of the screening box (21). A vibrating box (28) is slidably connected to the outside of the limit rod (29). A connecting seat (24) is fixedly connected to the outside of the screening box (21). The vibrating box (28) is slidably connected to the outside of the vibrating box (28). An I-shaped plate (26) is fixedly connected. An auxiliary screening plate (217) is fixedly connected to the outer end of the I-shaped plate (26) away from the vibrating box (28). A screw block (212) is rotatably connected inside the vibrating box (28). A screw rod (213) is fixedly connected to the outside of the screw block (212). A sliding rod (214) is fixedly connected inside the vibrating box (28). An adjusting plate (216) is threadedly connected to the outside of the screw rod (213). A screen (215) is fixedly connected to the inside of the vibrating box (28). A slider (210) is fixedly connected to the outside of the vibrating box (28). A spring (211) is provided at the middle position between the outside of the slider (210) and the inside of the screening box (21).

2. The bean particle size screening machine according to claim 1, characterized in that: A through hole is provided on the connecting seat (24), and an I-shaped plate (26) is slidably connected to the inside of the connecting seat (24) through the through hole.

3. The bean particle size screening machine according to claim 1, characterized in that: A sliding groove is provided on the screening box (21), and the slider (210) is slidably connected to the inside of the screening box (21) through the sliding groove.

4. A bean particle size screening machine according to claim 1, characterized in that: A second through hole is provided on the adjusting plate (216), and the adjusting plate (216) is slidably connected to the outside of the sliding rod (214) through the second through hole.

5. A bean particle size screening machine according to claim 1, characterized in that: When the adjusting plate (216) slides, the size of the hole between the adjusting plate (216) and the screen (215) is adjusted.

6. A bean particle size screening machine according to claim 1, characterized in that: When the double-headed cam rod (25) moves away from the I-shaped plate (26), the I-shaped plate (26) moves downward. When the double-headed cam rod (25) moves close to the I-shaped plate (26), the I-shaped plate (26) moves upward.

7. A bean particle size screening machine according to claim 1, characterized in that: The conveying assembly includes a mounting plate (31), which is fixedly connected to the outside of the screening box (21). A second motor (32) is fixedly connected to the outer surface of the mounting plate (31). A first rotating roller (33) is fixedly connected to the output end of the second motor (32). A transmission belt (34) is driven to the outer surface of the first rotating roller (33). A second rotating roller (35) is driven to the end of the transmission belt (34) away from the first rotating roller (33). A baffle (36) is fixedly connected to the inner side of the mounting plate (31).