Negative pressure separation device for screening empty and shriveled rice

Abstract

The utility model discloses a negative-pressure separation device for screening empty and shriveled rice, which comprises a separation box, a separation box and a negative-pressure separation device, wherein a protective frame is arranged outside the separation box; the adsorption mechanism is connected with the separation box; the material dispersing mechanism is connected to the upper part of the separation box; and the feeding mechanism is connected to one side of the separation box. According to the negative-pressure separation device for screening out empty and shriveled rice, rice to be separated is poured into the bottom of the feeding belt, the driving motor drives the transmission shaft to rotate, the feeding belt is driven to work, the rice can be automatically lifted to the receiving hopper through the partition plate, and the rice enters the separation box through the receiving hopper and the scattering mechanism to be subjected to negative-pressure separation; the rice is automatically conveyed to the position of the feeding port through the feeding belt, the burden of manual carrying is greatly relieved, when a large amount of rice needs to be carried, the feeding belt can continuously feed the rice into the feeding port, and the problems of fatigue accumulation and efficiency reduction in the manual carrying process are solved.

Description

Technical Field

[0001] This utility model relates to the field of grain processing equipment technology, and in particular to a negative pressure separation device for screening out empty and shriveled rice grains. Background Technology

[0002] Empty and shriveled rice refers to rice grains that appear normal on the outside but are very light inside, or even have no grains or only a few grains. Because empty and shriveled rice lacks a complete grain structure, it is more likely to absorb moisture, thus becoming a breeding ground for mold during storage. Therefore, empty and shriveled rice grains need to be removed before storage.

[0003] A screening device for removing empty and shriveled rice grains, disclosed in CN220160546U, includes a shell. A feed hopper is fixedly connected to the top of the shell near one side. The top of a chute is fixedly connected to the inside of the shell below the feed hopper. Another chute is mirror-imagely arranged and fixedly connected to the inside of the shell below the lower chute. A discharge chute is fixedly installed on the side wall of the shell extending from the bottom of the lower chute. Several fans are fixedly installed on the side wall of the shell along the inclined edge of the chute. This invention separates empty and shriveled rice grains from normal rice grains by pouring rice from the feed hopper onto the chute, causing the rice to slide down the chute while being repeatedly blown by multiple fans. This blows out empty and shriveled rice grains and dust, while the separated normal rice grains are discharged through the discharge chute. The empty and shriveled rice grains remain inside and are collected by other structures within the device, thus achieving the separation of empty and shriveled rice grains from normal rice grains. However, in the existing equipment, during the feeding process, workers often have to pick up the storage bags full of rice and pour the rice into the inlet on the shell, or use tools such as wooden shovels to transport the rice directly to the inlet on the shell. Because the inlet on the shell is located high, the workload of workers is large, especially when a large amount of rice needs to be transported, resulting in low work efficiency and high labor intensity for workers. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, and it includes: a separation box with a protective frame on the outside; an adsorption mechanism connected to the separation box; a material dispersing mechanism connected above the separation box; a feeding mechanism connected to one side of the separation box, with a receiving hopper connected to the material dispersing mechanism below the feeding mechanism; the feeding mechanism includes a feeding frame with a drive motor on it, the drive motor being connected to a feeding belt via a transmission shaft, the feeding belt having multiple partitions evenly spaced, and baffles on the side of the feeding belt.

[0005] As a further description of the above technical solution: a mounting frame is connected to the feeding frame, a brush roller is rotatably connected to the mounting frame, the brush roller is in contact with the bottom of the feeding belt, and a first receiving box is provided below the brush roller.

[0006] As a further description of the above technical solution: the adsorption mechanism includes an exhaust fan and a fan. The exhaust fan is connected to the outside of the separation box. One side of the exhaust fan is connected to the negative pressure pipe through a conduit, and the other side of the exhaust fan is connected to the impurity collection box through a conduit. A suction pipe is provided on the negative pressure pipe, and the fan is located inside the separation box.

[0007] As a further description of the above technical solution: the bulk material mechanism includes a housing, the upper part of which is detachably connected to a receiving hopper, the lower part of which is connected to a separation box, a bulk material shaft is provided inside the housing, a bulk material plate is connected to the bulk material shaft, one end of the bulk material shaft is connected to a drive wheel, and the drive wheel is connected to a servo motor through a transmission belt.

[0008] As a further description of the above technical solution: a second receiving box is provided at the bottom of the feeding rack.

[0009] As a further description of the above technical solution: multiple straws are provided, and the straws are equally spaced on the negative pressure tube.

[0010] As a further description of the above technical solution: a guide plate is provided inside the separation box, and a discharge pipe is provided on one side of the separation box.

[0011] As a further description of the above technical solution: the separation box is equipped with a control box and a control panel.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] This invention involves pouring the rice to be separated into the bottom of a feeding belt. A drive motor rotates the transmission shaft, which in turn drives the feeding belt. A partition automatically lifts the rice to the receiving hopper, and then through the hopper and the dispersing mechanism, it enters the separation box for negative pressure separation. The feeding belt automatically transports the rice to the inlet, greatly reducing the burden of manual handling. When a large amount of rice needs to be handled, the feeding belt can continuously deliver rice to the inlet, avoiding the problems of fatigue accumulation and efficiency reduction during manual handling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the negative pressure separation device in one embodiment of the present invention;

[0015] Figure 2 This is a front view of the negative pressure separation device in one embodiment of the present invention;

[0016] Figure 3 for Figure 1 A schematic diagram of the adsorption mechanism in a negative pressure separation device;

[0017] Figure 4 for Figure 1 A schematic diagram of the adsorption mechanism in the bulk material handling system.

[0018] Legend:

[0019] 1. Separation box; 2. Protective frame; 3. Adsorption mechanism; 4. Distributing mechanism; 5. Feeding mechanism; 6. Receiving hopper; 7. Mounting frame; 8. Brush roller; 9. First receiving box; 10. Second receiving box; 11. Guide plate; 12. Discharge pipe; 13. Control box; 14. Control panel; 31. Exhaust fan; 32. Fan; 33. Negative pressure pipe; 34. Collection box; 35. Suction pipe; 41. Housing; 42. Distributing shaft; 43. Distributing plate; 44. Drive wheel; 45. Transmission belt; 46. Servo motor; 51. Feeding rack; 52. Drive motor; 53. Transmission shaft; 54. Feeding belt; 55. Partition plate; 56. Baffle plate. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1-4As shown, a negative pressure separation device for screening out empty and shriveled rice grains according to this utility model includes: a separation box 1, with a protective frame 2 installed outside the separation box 1; an adsorption mechanism 3 connected to the separation box 1; a material dispersing mechanism 4 connected above the separation box 1; a feeding mechanism 5 connected to one side of the separation box 1, with a receiving hopper 6 connected to the material dispersing mechanism 4 below the feeding mechanism 5; the feeding mechanism 5 includes a feeding frame 51, with a drive motor 52 installed on the feeding frame 51, the drive motor 52 being connected to a feeding belt 54 via a transmission shaft 53, multiple partitions 55 evenly spaced on the feeding belt 54, and baffles 56 on the side of the feeding belt 54.

[0024] In this embodiment, the rice to be separated is poured into the bottom of the feeding belt 54, and the drive motor 52 drives the transmission shaft 53 to rotate, which in turn drives the feeding belt 54 to work. The rice can be automatically lifted to the receiving hopper 6 through the partition 55, and then enter the separation box 1 through the receiving hopper 6 and the dispersing mechanism 4 for negative pressure separation. The feeding belt 54 automatically transports the rice to the inlet, which greatly reduces the burden of manual handling. When a large amount of rice needs to be transported, the feeding belt can continuously feed the rice into the inlet, avoiding the problem of fatigue accumulation and efficiency reduction during manual handling. With the cooperation of multiple partitions 55, the system can efficiently and quantitatively transport materials to adapt to different production needs.

[0025] The feeding belt 54 is equipped with multiple baffles 55. The baffles 55 can prevent the rising rice grains from slipping off, and at the same time, they can make the rice grains flow into the separation box 1 more evenly and stably, effectively avoiding blockage and ensuring the continuity and stability of separation.

[0026] like Figure 1 and Figure 2 As shown, specifically, a mounting frame 7 is connected to the feeding frame 51, and a brush roller 8 is rotatably connected to the mounting frame 7. The brush roller 8 contacts the bottom of the feeding belt 54. A first receiving box 9 is provided below the brush roller 8, and a second receiving box 10 is provided at the bottom of the feeding frame 51. As the returning feeding belt 54 passes through the brush roller 8, the brush roller 8 can scrape the rice stuck to the feeding belt 54 into the first receiving box 9 for recycling, which is convenient for centralized cleaning and prevents the rice stuck to the feeding belt 54 from spilling on the ground.

[0027] The second receiving box 10 is located at the bottom of the feeding belt 54 and can collect the rice that slips off the bottom of the feeding belt 54.

[0028] like Figure 2 and Figure 3As shown, specifically, the adsorption mechanism 3 includes an exhaust fan 31 and a fan 32. The exhaust fan 31 is connected to the outside of the separation box 1. One side of the exhaust fan 31 is connected to the negative pressure pipe 33 through a conduit, and the other side of the exhaust fan 31 is connected to the collection box 34 through a conduit. A suction tube 35 is provided on the negative pressure pipe 33. The fan 32 is located inside the separation box 1. Multiple suction tubes 35 are provided, and the suction tubes 35 are evenly spaced on the negative pressure pipe 33. When the fan 32 works, empty and shriveled rice grains (relatively light impurities) can be effectively separated from normal rice grains (heavier grains). When the exhaust fan 31 works, the suction tubes 35 on the negative pressure pipe 33 adsorb the light impurities such as empty and shriveled rice grains into the collection box 34 for collection. Through multiple equally spaced suction tubes 35, empty and shriveled rice grains can be evenly extracted from all directions, which improves the separation efficiency and accuracy, ensuring that more empty and shriveled rice grains are effectively removed.

[0029] like Figure 2 and Figure 4 As shown, specifically, the bulk material mechanism 4 includes a housing 41. The upper part of the housing 41 is detachably connected to the receiving hopper 6, and the lower part of the housing 41 is connected to the separation box 1. A bulk material shaft 42 is provided inside the housing 41, and a bulk material plate 43 is connected to the bulk material shaft 42. One end of the bulk material shaft 42 is connected to the drive wheel 44, and the drive wheel 44 is connected to the servo motor 46 through the transmission belt 45. By controlling the servo motor 46 to work, the bulk material shaft 42 and the bulk material plate 43 can be driven to rotate, which stirs and disperses the rice that enters the housing 41 from the receiving hopper 6. The clumps of rice can be broken up, and the adsorption mechanism 3 can remove the empty rice, which enhances the practicality of the device.

[0030] like Figure 1 and Figure 2 As shown, specifically, the separation box 1 is equipped with a guide plate 11 inside, a discharge pipe 12 is provided on one side of the separation box 1, and a control box 13 and a control panel 14 are provided on the separation box 1; the device is controlled by the control panel 14.

[0031] Working principle: The operator pours the rice to be separated into the bottom of the feeding belt 54. The drive motor 52 drives the transmission shaft 53 to rotate, which in turn drives the feeding belt 54. The rice is automatically lifted to the receiving hopper 6 by the partition 55, and then enters the separation box 1 through the receiving hopper 6 and the dispersing mechanism 4 for negative pressure separation. The feeding belt 54 automatically transports the rice to the inlet, which greatly reduces the burden of manual handling. When a large amount of rice needs to be transported, the feeding belt can continuously feed rice into the inlet, avoiding the problems of fatigue accumulation and efficiency reduction during manual handling. With the cooperation of multiple partitions 55, the system can efficiently and quantitatively transport materials to meet different production needs.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A negative pressure separation device for screening out empty and shriveled rice grains, characterized in that, include: Separation box (1), with a protective frame (2) installed on the outside of separation box (1); Adsorption mechanism (3), which is connected to the separation box (1); A bulk material handling mechanism (4) is connected above the separation box (1); A feeding mechanism (5) is connected to one side of the separation box (1), and a receiving hopper (6) connected to the bulk material mechanism (4) is provided below the feeding mechanism (5); The feeding mechanism (5) includes a feeding frame (51), on which a drive motor (52) is provided. The drive motor (52) is connected to the feeding belt (54) through a transmission shaft (53). Multiple partitions (55) are provided at equal intervals on the feeding belt (54), and baffles (56) are provided on the side of the feeding belt (54).

2. The negative pressure separation device for screening out empty and shriveled rice grains according to claim 1, characterized in that: The feeding rack (51) is connected to the mounting frame (7), and the mounting frame (7) is rotatably connected to the brush roller (8). The brush roller (8) is in contact with the bottom of the feeding belt (54), and a first receiving box (9) is provided below the brush roller (8).

3. The negative pressure separation device for screening out empty and shriveled rice grains according to claim 1, characterized in that: The adsorption mechanism (3) includes an exhaust fan (31) and a fan (32). The exhaust fan (31) is connected to the outside of the separation box (1). One side of the exhaust fan (31) is connected to the negative pressure pipe (33) through a conduit, and the other side of the exhaust fan (31) is connected to the collection box (34) through a conduit. A suction pipe (35) is provided on the negative pressure pipe (33), and the fan (32) is located inside the separation box (1).

4. The negative pressure separation device for screening out empty and shriveled rice grains according to claim 1, characterized in that: The material dispersing mechanism (4) includes a housing (41), the upper part of which is detachably connected to the receiving hopper (6), the lower part of which is connected to the separation box (1), a material dispersing shaft (42) is provided inside the housing (41), a material dispersing plate (43) is connected to the material dispersing shaft (42), one end of the material dispersing shaft (42) is connected to the drive wheel (44), and the drive wheel (44) is connected to the servo motor (46) through the transmission belt (45).

5. A negative pressure separation device for screening out empty and shriveled rice grains according to claim 1, characterized in that: The bottom of the feeding rack (51) is provided with a second receiving box (10).

6. A negative pressure separation device for screening out empty and shriveled rice grains according to claim 3, characterized in that: Multiple straws (35) are provided, and the straws (35) are equally spaced on the negative pressure tube (33).

7. A negative pressure separation device for screening out empty and shriveled rice grains according to claim 1, characterized in that: The separation box (1) is equipped with a guide plate (11) inside, and a discharge pipe (12) is provided on one side of the separation box (1).

8. A negative pressure separation device for screening out empty and shriveled rice grains according to claim 1, characterized in that: The separation box (1) is equipped with a control box (13) and a control panel (14).

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