Multi-stage screening mechanism for soybean processing

Abstract

The utility model belongs to the technical field of soybean processing, and particularly relates to a multistage screening mechanism for soybean processing, which comprises a box body, a screening assembly, a blocking assembly and a receiving assembly, the screening assembly is arranged to incline by 8 degrees and is located below the blocking assembly, and the screening assembly and the blocking assembly are both arranged on the upper side in the box body. The receiving assembly is arranged in the box body and located below the screening assembly, and a feeding hopper is correspondingly installed on the portion, located on the upwarp side of the screening assembly, of the surface of the box body. The screening assembly, the receiving assembly and the blocking assembly are cooperatively matched, linkage control of the transmission assembly and the driving assembly is combined, and the dual functions of dynamic screening and flow speed adjustment are achieved. The receiving assembly and the suction fan set form a secondary sorting system, gravity winnowing is achieved through the specific gravity difference, broken beans, mildewed beans and other defective goods can be effectively separated, the soybean impurity rate is reduced, and the screening quality and the practical value of equipment are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to soybean processing technical field, concretely relates to a multistage screening mechanism for soybean processing. BACKGROUND

[0002] The existing soybean screening equipment generally has low screening efficiency and insufficient sorting precision, and the main reason is that the traditional vibrating screen structure design has inherent defects: firstly, the single-layer screen structure leads to incomplete separation of impurities and qualified soybeans, and the screen is frequently blocked; secondly, the soybeans lack effective speed control mechanisms during the falling process on the inclined screen surface, and the material flow speed is too fast, so that small-particle impurities are taken away from the screening area without being fully screened; thirdly, the existing equipment mostly adopts a single particle size screening mode, and cannot simultaneously realize multi-dimensional sorting such as specific gravity grading, particle size screening and light impurity separation, so that broken beans, moldy beans and other substandard products cannot be effectively removed. SUMMARY

[0003] The utility model aims at providing a multistage screening mechanism for soybean processing, which can solve the above technical problems.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] The multistage screening mechanism for soybean processing comprises a box body, a screening assembly, a blocking assembly and a receiving assembly, the screening assembly is arranged to be inclined by 8° and located below the blocking assembly, the screening assembly and the blocking assembly are both arranged on the upper side of the box body, the receiving assembly is arranged in the box body and located below the screening assembly, and a feed hopper is installed on the surface of the box body corresponding to the side of the screening assembly that is upwarping.

[0006] The screening assembly comprises a reciprocating frame, a smooth shaft, a transmission plate and an elastic member, the reciprocating frame is arranged on the upper side of the box body, the smooth shaft is arranged in two groups and installed on the two sides of the reciprocating frame, a screen surface is installed in the reciprocating frame, the transmission plate is arranged on one side of the box body, the two groups of smooth shafts are respectively slidingly installed on the two side plates of the box body, two clamping nuts are arranged on one side of the box body, the clamping nuts are threadedly arranged on the free ends of one group of smooth shafts, and the two sides of the transmission plate are sleeved on one group of smooth shafts and located between the two clamping nuts.

[0007] The other side of the box body is provided with two limiting nuts, and the limiting nuts are threadedly arranged on the free ends of the other group of smooth shafts, the elastic member is arranged in two groups and located on the other side of the box body, and the elastic member is sleeved on the other group of smooth shafts and located between the other side of the box body and the limiting nuts.

[0008] As preferred, the blocking assembly comprises two rotating shafts, a transmission assembly and a driving assembly, the two rotating shafts are arranged in the same straight line and parallel to the screen surface, the rotating shafts are rotatably installed on the side plates of the box, the side of the box is provided with a belt pulley set, the belt pulley set is installed on one side of the two rotating shafts, two sets of blocking plates are arranged above the screen surface in the box, each set of the blocking plates comprises four vertically symmetrical blocking plates, and the four blocking plates are fixedly arranged on the rotating shafts, the distance between the bottom surface of the blocking plate and the surface of the screen surface is 3mm when the blocking plate rotates around the rotating shaft as the center, and two symmetrical blocking plates in each set of the blocking plates are provided with a leakage hole.

[0009] As preferred, the transmission assembly is arranged on one side of the box and connected with one of the rotating shafts, the transmission assembly comprises a transmission main bevel gear, a transmission secondary bevel gear, a cam and a reciprocating shaft, the transmission main bevel gear is key-connected to the free end of one of the rotating shafts, the transmission secondary bevel gear is meshed and matched with the transmission main bevel gear, the side of the box is rotatably installed with a stable shaft through a bearing seat, and the transmission secondary bevel gear is key-connected and installed on the upper side of the stable shaft.

[0010] As preferred, the cam is arranged on the side of the box and installed on the lower side of the stable shaft, the reciprocating shaft is arranged on the side of the box and movably sleeved in a transmission hole, the transmission hole is arranged through the transmission plate, and the reciprocating shaft is installed on the side close to the outer periphery of the cam, and the length of the transmission hole is 1.2 times the diameter of the cam rotating around the stable shaft as the center.

[0011] As preferred, the driving assembly comprises a driving main bevel gear, a driving secondary bevel gear and a driving motor, the driving motor is installed on the other side of the box, the driving main bevel gear is key-connected and installed on the output shaft of the driving motor, the driving secondary bevel gear is meshed and matched with the driving main bevel gear and is key-connected and installed on the other free end of the other rotating shaft.

[0012] As preferred, the receiving assembly comprises two symmetrically arranged receiving guide plates and a bent-shaped separation guide plate, the separation guide plate is arranged below the two receiving guide plates, the separation guide plate and the two receiving guide plates are installed in the box and below the screen surface, and the bending part of the separation guide plate is located at the up-down staggered position on the opposite sides of the two receiving guide plates.

[0013] As preferred, the side of the box is installed with a suction fan set, the suction fan set is located between the separation guide plate and the receiving guide plate and corresponds to the bending part on the separation guide plate.

[0014] The beneficial effects are:

[0015] This invention achieves the dual functions of dynamic screening and flow rate regulation through the coordinated operation of screening, receiving, and blocking components, combined with the linkage control of transmission and drive components. Specifically, the drive motor drives two rotating shafts to rotate synchronously via the drive component. This causes the blocking plates on the shafts to move in a circular motion above the screen openings, effectively reducing the rolling speed of the soybeans. Simultaneously, the transmission component converts the rotational motion into linear reciprocating motion, pushing the reciprocating frame to move the screen openings back and forth. The intermittent interception by the blocking plates creates a combined "blocking-screening" effect. The receiving component and the suction fan assembly constitute a secondary sorting system, utilizing gravity differences to achieve gravity air separation. This effectively separates broken and moldy soybeans, reducing the impurity content of the soybeans and significantly improving screening quality and the equipment's practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the screening component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the blocking component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the other side of the blocking component of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Housing; 2. Screening assembly; 21. Reciprocating frame; 22. Screen hole surface; 23. Smoothing shaft; 24. Transmission plate; 24a. Transmission hole; 25. Elastic element; 3. Blocking assembly; 31. Rotating shaft; 32. Blocking plate; 32a. Leakage hole; 33. Pulley assembly; 34. Transmission main bevel gear; 35. Transmission secondary bevel gear; 36. Stabilizing shaft; 37. Cam; 38. Reciprocating shaft; 39. Drive secondary bevel gear; 310. Drive main bevel gear; 311. Drive motor; 4. Feed hopper; 5. Switch; 6. Suction fan assembly; 7. Receiving guide plate; 8. Separation guide plate. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] likeFigures 1-5 As shown, a multi-stage screening mechanism for soybean processing includes a housing 1, a screening component 2, a blocking component 3, and a receiving component. The screening component 2 is set at an 8° inclination and is located below the blocking component 3. Both the screening component 2 and the blocking component 3 are located on the upper side inside the housing 1. The receiving component is located inside the housing 1 and below the screening component 2. A feed hopper 4 is installed on the surface of the housing 1 on the side of the screening component 2 that is tilted upwards.

[0025] The screening assembly 2 includes a reciprocating frame 21, a smooth shaft 23, a transmission plate 24, and an elastic element 25. The reciprocating frame 21 is located on the upper side inside the housing 1. The smooth shaft 23 is configured in two sets, and the two sets are respectively installed on both sides of the reciprocating frame 21. The screen hole surface 22 is installed inside the reciprocating frame 21. The transmission plate 24 is located on one side of the housing 1. The two sets of smooth shafts 23 are slidably installed on the two side plates of the housing 1. Two sets of clamping nuts are provided on one side of the housing 1, and the clamping nuts are threaded on the free end of one set of smooth shafts 23. The two sides of the transmission plate 24 are sleeved on one set of smooth shafts 23 and located between the two clamping nuts.

[0026] Two limiting nuts are provided on the other side of the housing 1, and the limiting nuts are threaded on the free end of another set of smooth shafts 23. Two elastic elements 25 are provided, both located on the other side of the housing 1. The elastic elements 25 are sleeved on the other set of smooth shafts 23 and located between the other side of the housing 1 and the limiting nuts. The elastic elements 25 can be springs.

[0027] As an optional implementation, the blocking assembly 3 includes two rotating shafts 31, a transmission assembly, and a drive assembly. The two rotating shafts 31 are aligned in a straight line and arranged parallel to each other above the screen hole surface 22. The rotating shafts 31 are rotatably mounted on the side plate of the housing 1. A pulley assembly 33 is provided on the side of the housing 1, and the pulley assembly 33 is mounted on one side of the two rotating shafts 31. The pulley assembly 33 includes two pulleys and a transmission belt, with the transmission belt sleeved on the two pulleys. The two pulleys are mounted on one side of the two rotating shafts 31. Two sets of blocking assemblies are provided above the screen hole surface 22 inside the housing 1. Each set of baffles 32 includes four vertically symmetrical baffles 32, and all four baffles 32 are fixed on the rotating shaft 31. When the baffles 32 rotate around the rotating shaft 31, the distance between the bottom surface and the surface of the screen hole 22 is set to 3mm. Two symmetrical baffles 32 on each set of baffles 32 are provided with through holes 32a. During the rotation of the baffles 32, the baffles 32 can block the rolling soybeans on the one hand, and use the through holes 32a to allow the impurities or soybeans intercepted by the screening to continue to roll downwards and be discharged, so as to achieve continuous screening.

[0028] See attached document Figure 4 and attached Figure 5The transmission assembly is located on one side of the housing 1 and connected to one of the rotating shafts 31. The transmission assembly includes a main bevel gear 34, a secondary bevel gear 35, a cam 37, and a reciprocating shaft 38. The main bevel gear 34 is keyed to the free end of one of the rotating shafts 31. The secondary bevel gear 35 meshes with the main bevel gear 34. A stabilizing shaft 36 is rotatably mounted on the side of the housing 1 via a bearing seat. The secondary bevel gear 35 is keyed to the upper side of the stabilizing shaft 36, so that the blocking assembly 3 uses the transmission assembly to reciprocate the transmission plate 24 on the screening assembly 2, thereby driving the reciprocating frame 21 to slide back and forth, improving the soybean screening effect.

[0029] Furthermore, the cam 37 is located on the side of the housing 1 and installed below the stabilizing shaft 36. The reciprocating shaft 38 is located on the side of the housing 1 and is movably fitted inside the transmission hole 24a. The transmission hole 24a is opened through the transmission plate 24. The reciprocating shaft 38 is installed on the side of the cam 37 near the outer circumference. The length of the transmission hole 24a is set to 1.2 times the diameter of the cam 37 rotating around the stabilizing shaft 36, ensuring that when the cam 37 rotates, it drives the reciprocating shaft 38 to move freely within the transmission hole 24a, thereby improving the reciprocating pushing effect on the transmission plate 24.

[0030] Furthermore, the drive assembly includes a main bevel gear 310, a secondary bevel gear 39, and a drive motor 311. The drive motor 311 is mounted on the other side of the housing 1. The main bevel gear 310 is keyed to the output shaft of the drive motor 311. The secondary bevel gear 39 meshes with the main bevel gear 310 and is keyed to the free end of another rotating shaft 31. A switch 5 is mounted on the housing 1, and the output end of the switch 5 is electrically connected to the input end of the drive motor 311, so that the drive motor 311 drives the blocking assembly 3 to rotate through the bevel gear set, thereby intercepting the soybeans on the screening assembly 2 and improving the sorting effect.

[0031] Furthermore, the receiving assembly includes two symmetrically arranged receiving guide plates 7 and a bent-shaped separation guide plate 8. The separation guide plate 8 is located below the two receiving guide plates 7. Both the separation guide plate 8 and the two receiving guide plates 7 are installed inside the housing 1 and located below the sieve hole surface 22. The bent part of the separation guide plate 8 is located at the vertically offset position on the opposite side of the two receiving guide plates 7. The lower side of the two side plates of the housing 1 is provided with discharge holes, and the two discharge holes correspond to the two sides of the separation guide plate 8, so that the bent part of the separation guide plate 8 can guide the soybeans falling from the receiving guide plates 7 to the two sides of the separation guide plate 8 for rolling discharge.

[0032] Furthermore, a suction fan assembly 6 is installed on the side of the housing 1. The suction fan assembly 6 is located between the separation guide plate 8 and the receiving guide plate 7, and corresponds to the bend on the separation guide plate 8. The suction fan assembly 6 includes a fan that integrates a circular cover and a motor. The fan is installed inside the circular cover, which is installed on the side of the housing 1. The side of the housing 1 has through holes that correspond to the circular cover, so that the suction fan assembly 6 can suction the soybeans that are guided to the separation guide plate 8 by the receiving component, and further sort and separate the soybeans after screening to remove defective products and improve the screening effect.

[0033] With the above structure, the drive motor 311 drives the two rotating shafts 31 to rotate synchronously through the drive assembly. This causes the baffle plate 32 on the rotating shaft 31 to move in a circular motion above the screen hole surface 22 with a constant gap, effectively controlling the rolling speed of the soybeans. At the same time, the transmission assembly converts the rotational motion into linear reciprocating motion, pushing the reciprocating frame 21 to move the screen hole surface 22 in a regular reciprocating motion. With the intermittent interception of the baffle plate 32, a dynamic composite effect of "impedance-screening" is formed. The receiving guide plate 7 and the separation guide plate 8 on the receiving assembly, together with the suction fan group 6, constitute a secondary sorting system. By utilizing the difference in specific gravity, gradient air separation is achieved, which can efficiently separate broken soybeans, moldy soybeans, and other defective products, realizing the fine screening and impurity removal of soybeans.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A multi-stage screening mechanism for soybean processing, characterized in that: The device includes a housing (1), a screening component (2), a blocking component (3), and a receiving component. The screening component (2) is set to be inclined at 8° and located below the blocking component (3). Both the screening component (2) and the blocking component (3) are located on the upper side inside the housing (1). The receiving component is located inside the housing (1) and below the screening component (2). A feed hopper (4) is installed on the surface of the housing (1) on the side where the screening component (2) is tilted upwards. The screening assembly (2) includes a reciprocating frame (21), a smooth shaft (23), a transmission plate (24), and an elastic element (25). The reciprocating frame (21) is located on the upper side inside the housing (1). The smooth shaft (23) is configured in two sets, and the two sets are respectively installed on both sides of the reciprocating frame (21). The reciprocating frame (21) is equipped with a screen hole surface (22). The transmission plate (24) is located on one side of the housing (1). The two sets of smooth shafts (23) are slidably installed on the two side plates of the housing (1). Two sets of clamping nuts are provided on one side of the housing (1), and the clamping nuts are threaded on the free end of one set of smooth shafts (23). The two sides of the transmission plate (24) are sleeved on one set of smooth shafts (23) and located between the two clamping nuts. Two limiting nuts are provided on the other side of the housing (1), and the limiting nuts are threaded on the free end of another set of smooth shafts (23). Two elastic elements (25) are provided, both located on the other side of the housing (1). The elastic elements (25) are sleeved on the other set of smooth shafts (23) and located between the other side of the housing (1) and the limiting nuts.

2. The multi-stage screening mechanism for soybean processing according to claim 1, characterized in that: The blocking assembly (3) includes two rotating shafts (31), a transmission assembly and a drive assembly. The two rotating shafts (31) are on the same straight line and are arranged parallel to each other above the screen hole surface (22). The rotating shafts (31) are rotatably mounted on the side plate of the box body (1). A pulley group (33) is provided on the side of the box body (1). The pulley group (33) is installed on one side of the two rotating shafts (31). Two sets of blocking plates (32) are provided above the screen hole surface (22) inside the box body (1). Each set of blocking plates (32) includes four vertically symmetrical blocking plates (32), and all four blocking plates (32) are fixed on the rotating shaft (31). When the blocking plate (32) rotates around the rotating shaft (31) as the center, the distance between the bottom surface of the blocking plate (32) and the surface of the screen hole surface (22) is set to 3mm. The two symmetrical blocking plates (32) on each set of blocking plates (32) have through holes (32a).

3. The multi-stage screening mechanism for soybean processing according to claim 2, characterized in that: The transmission assembly is located on one side of the housing (1) and connected to one of the rotating shafts (31). The transmission assembly includes a main bevel gear (34), a secondary bevel gear (35), a cam (37), and a reciprocating shaft (38). The main bevel gear (34) is keyed to the free end of one of the rotating shafts (31). The secondary bevel gear (35) meshes with the main bevel gear (34). A stabilizing shaft (36) is rotatably mounted on the side of the housing (1) via a bearing seat. The secondary bevel gear (35) is keyed to the upper side of the stabilizing shaft (36).

4. The multi-stage screening mechanism for soybean processing according to claim 3, characterized in that: The cam (37) is located on the side of the housing (1) and installed on the lower side of the stabilizing shaft (36). The reciprocating shaft (38) is located on the side of the housing (1) and is movably fitted in the transmission hole (24a). The transmission hole (24a) is opened through the transmission plate (24). The reciprocating shaft (38) is installed on the side of the cam (37) near the outer circumference. The length of the transmission hole (24a) is set to 1.2 times the diameter of the cam (37) rotating around the stabilizing shaft (36).

5. The multi-stage screening mechanism for soybean processing according to claim 4, characterized in that: The drive assembly includes a drive main bevel gear (310), a drive secondary bevel gear (39), and a drive motor (311). The drive motor (311) is mounted on the other side of the housing (1). The drive main bevel gear (310) is keyed to the output shaft of the drive motor (311). The drive secondary bevel gear (39) meshes with the drive main bevel gear (310) and is keyed to the free end of the other side of another rotating shaft (31).

6. The multi-stage screening mechanism for soybean processing according to claim 5, characterized in that: The receiving assembly includes two symmetrically arranged receiving guide plates (7) and a bent separation guide plate (8). The separation guide plate (8) is located below the two receiving guide plates (7). Both the separation guide plate (8) and the two receiving guide plates (7) are installed inside the housing (1) and located below the sieve hole surface (22). The bend of the separation guide plate (8) is located at the vertical misalignment of the two receiving guide plates (7) on opposite sides.

7. The multi-stage screening mechanism for soybean processing according to claim 6, characterized in that: A suction fan assembly (6) is installed on the side of the housing (1). The suction fan assembly (6) is located between the separation guide plate (8) and the receiving guide plate (7) and corresponds to the bend on the separation guide plate (8).

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