A screening conveyor for rice processing

Abstract

The utility model relates to rice processing technical field, and disclose a kind of screening conveyor for rice processing, including screening box, the inside movable sleeve joint of screening box has upper sieve plate and lower sieve plate, the upper sieve plate is located directly above lower sieve plate, and the side of upper sieve plate and lower sieve plate is uniformly connected with arc limit plate with fixed connection.This utility model is supported by the cooperation of the support table, steering handle, rotating rod and connecting block of one sieve plate position adjusting mechanism and two sieve plate position adjusting mechanisms, and the upper sieve plate and lower sieve plate can be rotated around the rotating rod, which can quickly rotate the upper sieve plate and lower sieve plate to the outside of the screening box, making it easy to clean the sieve plate afterwards and improving the cleaning efficiency of the sieve plate. After cleaning the upper sieve plate and lower sieve plate, rotate them to the inside of the screening box in the same way, and then use the cooperation of the limit rod and threaded port to limit and fix the steering handle, so that the upper sieve plate and lower sieve plate can be fixed inside the screening box.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and more specifically to a screening conveyor for rice processing. Background Technology

[0002] Rice processing refers to the process of cleaning, hulling, milling, grading, and packaging paddy rice to transform it into rice products that can be directly consumed or further processed. During rice processing, due to various reasons, the size of the processed rice grains is not uniform; some grains are larger, and some are smaller. However, large and small grains of rice have completely different prices in the market. Moreover, if the rice sold is of inconsistent grain size, it will seriously reduce the quality and selling price of the rice. Therefore, in order to improve the commercial value of the product and obtain higher-quality rice, large and small grains need to be screened at the end of rice processing. Currently, multi-stage vibrating screens are used to screen rice of different sizes. However, the screen plates are usually fixed inside the machine with multiple bolts. If the screen plates become clogged or require periodic cleaning, it is difficult to quickly remove them from the machine, thus affecting the cleaning efficiency, which needs improvement. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a screening conveyor for rice processing to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a screening conveyor for rice processing, comprising a screening box, wherein an upper screen plate and a lower screen plate are movably sleeved inside the screening box, the upper screen plate being located directly above the lower screen plate, and an arc-shaped limiting plate being fixedly connected to one side of both the upper and lower screen plates; two arc-shaped grooves are formed on the outer wall of the screening box, and the outer wall of the arc-shaped limiting plate is movably sleeved inside the arc-shaped grooves; a first screen plate position adjustment mechanism is installed on the left side of the screening box, the first screen plate position adjustment mechanism comprising a support platform, the right side of the support platform being fixedly installed on the left side of the screening box, a rotating rod being rotatably mounted on the top of the support platform via a bearing, a connecting block being fixedly connected to the right side of the rotating rod, the right side of the connecting block being fixedly connected to the left side of the upper screen plate, and a rotating handle being fixedly connected to the top of the rotating rod.

[0005] Furthermore, a threaded opening is provided on one side of the top of the support platform, and a limit rod is movably sleeved on one side inside the throttle, with the bottom end of the limit rod threadedly connected to the inside of the threaded opening.

[0006] Furthermore, both the upper and lower sieve plates are provided with multiple sieve holes. The diameter of the sieve holes on the upper sieve plate is larger than that on the lower sieve plate. The top of the upper sieve plate is inclined to the lower right. A first discharge port is provided on the right side of the screening box. The first discharge port is located above the right side of the upper sieve plate. A first discharge cover is fixedly connected to the right side of the screening box. The first discharge cover is located below the first discharge port.

[0007] Furthermore, the top of the lower screen plate is inclined downwards and backwards, and a second discharge port is provided on the back of the screening box. The second discharge port is located above the back of the lower screen plate. A second discharge cover is fixedly connected to the back of the screening box. The second discharge cover is located below the second discharge port. A second screen plate position adjustment mechanism is installed on the front of the screening box. The structure of the second screen plate position adjustment mechanism is the same as that of the first screen plate position adjustment mechanism.

[0008] Furthermore, a discharge plate is fixedly connected to the bottom of the inner wall of the screening box, the top of the discharge plate is inclined to the lower left, a third discharge port is opened on the left side of the screening box, the third discharge port is located above the left side of the discharge plate, a third discharge cover is fixedly connected to the left side of the screening box, the third discharge cover is located below the third discharge port, and belt conveyors are provided below the first discharge cover, the second discharge cover and the third discharge cover, and there are a total of three belt conveyors.

[0009] Furthermore, a base is provided below the screening box, a vibrator is fixedly installed in the middle of the top of the base, the vibrating end of the vibrator is fixedly installed in the middle of the bottom of the screening box, and multiple support springs are fixedly installed around the bottom of the screening box, with the bottom end of the support springs fixedly connected to the top of the base.

[0010] The technical effects and advantages of this utility model are as follows: 1. This utility model utilizes the support platform, handle, rotating rod, and connecting block of the No. 1 and No. 2 screen plate position adjustment mechanisms to facilitate the rotation of the upper and lower screen plates around the rotating rod. This allows the upper and lower screen plates to be quickly rotated to the outside of the screening box, facilitating subsequent cleaning and improving cleaning efficiency. After cleaning, the upper and lower screen plates are rotated to the inside of the screening box in the same manner. The limiting rod and threaded joint are then used to limit and fix the rotating handle, thus securing the upper and lower screen plates inside the screening box.

[0011] 2. This utility model, through the combination of a vibrator, a base, a support spring, and a screening box, facilitates the vibration of the upper and lower screen plates, thereby classifying and screening rice. The arrangement of a first discharge port, a first discharge hood, a second discharge port, a second discharge hood, a third discharge port, and a third discharge hood facilitates the discharge of rice of different particle sizes. At the same time, the use of three belt conveyors facilitates the transportation of rice of different particle sizes, making it convenient for subsequent processing of rice of different particle sizes. 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 second-view schematic diagram of the overall structure of this utility model.

[0014] Figure 3 This is a third-view schematic diagram of the overall structure of this utility model.

[0015] Figure 4 This is a fourth-view schematic diagram of the overall structure of this utility model.

[0016] Figure 5 This is a cross-sectional view of the screening box structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the support platform, throttle, rotating rod, limiting rod, and threaded joint structure of this utility model.

[0018] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0019] The attached diagram is labeled as follows: 1. Screening box; 2. Upper screen plate; 21. First discharge port; 22. First discharge hood; 3. No. 1 screen plate position adjustment mechanism; 31. Support platform; 32. Rotary handle; 33. Rotating rod; 34. Connecting block; 35. Limiting rod; 36. Threaded port; 4. Lower screen plate; 41. Second discharge port; 42. Second discharge hood; 5. No. 2 screen plate position adjustment mechanism; 6. Arc-shaped limiting plate; 7. Discharge plate; 71. Third discharge port; 8. Third discharge hood; 9. Base; 10. Vibrator; 11. Support spring; 12. Belt conveyor. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The screening conveyor for rice processing involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: like Figure 1-7 As shown, a screening conveyor for rice processing includes a screening box 1. An upper screen plate 2 and a lower screen plate 4 are movably fitted inside the screening box 1. The upper screen plate 2 is located directly above the lower screen plate 4. Both the upper screen plate 2 and the lower screen plate 4 have multiple screen holes. The diameter of the screen holes in the upper screen plate 2 is larger than that in the lower screen plate 4. The top of the upper screen plate 2 is inclined downwards to the right. A first discharge port 21 is located on the right side of the screening box 1, above the right side of the upper screen plate 2. A first discharge cover 22 is fixedly connected to the right side of the screening box 1, below the first discharge port 21. The top of the lower screen plate 4 is inclined downwards and backwards. A second discharge port 41 is located on the back of the screening box 1, above the rear of the lower screen plate 4. A second discharge cover 42 is fixedly connected to the back of the screening box 1, below the second discharge port 41. A second screen plate is installed on the front of the screening box 1. The position adjustment mechanism 5 and the second screen plate position adjustment mechanism 5 have the same structure as the first screen plate position adjustment mechanism 3. The bottom of the inner wall of the screening box 1 is fixedly connected to the discharge plate 7. The top of the discharge plate 7 is tilted to the lower left. The left side of the screening box 1 is provided with a third discharge port 71, which is located above the left side of the discharge plate 7. The left side of the screening box 1 is fixedly connected to a third discharge cover 8, which is located below the third discharge port 71. The first discharge cover 22, the second discharge cover 42 and the third discharge cover 8 are all provided with belt conveyors 12. There are a total of three belt conveyors 12. The bottom of the screening box 1 is provided with a base 9. The top center of the base 9 is fixedly installed with a vibrator 10. The vibrating end of the vibrator 10 is fixedly installed in the center of the bottom of the screening box 1. Multiple support springs 11 are fixedly installed around the bottom of the screening box 1. The bottom end of the support springs 11 is fixedly connected to the top of the base 9.

[0022] In this embodiment, the screening box 1 is elastically supported by multiple support springs 11. The screening box 1 can be driven to vibrate by the vibrator 10. The upper sieve plate 2 facilitates the initial screening of rice particle size, and the lower sieve plate 4 facilitates further screening of rice particle size. The rice particle size can be screened into three grades. The three particle size grades of rice are discharged through the first discharge port 21, the first discharge hood 22, the second discharge port 41, the second discharge hood 42, the third discharge port 71, and the third discharge hood 8. The three belt conveyors 12 facilitate the transportation of rice of different particle sizes, which is convenient for subsequent processing of rice of different particle sizes.

[0023] Example 2: like Figure 1-7 As shown, an arc-shaped limiting plate 6 is fixedly connected to one side of both the upper screen plate 2 and the lower screen plate 4. Two arc-shaped grooves are opened on the outer wall of the screening box 1. The outer wall of the arc-shaped limiting plate 6 is movably fitted inside the arc-shaped groove. A first screen plate position adjustment mechanism 3 is installed on the left side of the screening box 1. The first screen plate position adjustment mechanism 3 includes a support platform 31. The right side of the support platform 31 is fixedly installed on the left side of the screening box 1. A rotating rod 33 is rotatably installed on the top of the support platform 31 through a bearing. A connecting block 34 is fixedly connected to the right side of the rotating rod 33. The right side of the connecting block 34 is fixedly connected to the left side of the upper screen plate 2. A rotating handle 32 is fixedly connected to the top of the rotating rod 33. A threaded opening 36 is opened on one side of the top of the support platform 31. A limiting rod 35 is movably fitted inside one side of the rotating handle 32. The bottom end of the limiting rod 35 is threadedly connected inside the threaded opening 36.

[0024] In this embodiment, the limiting rod 35 and the threaded opening 36 facilitate the limiting of the handle 32, preventing the handle 32 from rotating on its own when no one is touching it. The limiting rod 35 is removed by screwing it out, and the handle 32, the rotating rod 33 and the connecting block 34 are rotated. One side of the connecting block 34 can drive the upper screen plate 2 and the arc-shaped limiting plate 6 to move, making it easy to rotate the upper screen plate 2 to the outside of the screening box 1, which is convenient for cleaning the upper screen plate 2. The connecting block 34 of the second screen plate position adjustment mechanism 5 is fixedly installed on the front of the lower screen plate 4. The operator can use the second screen plate position adjustment mechanism 5 in the same way to move the lower screen plate 4 out of the screening box 1, which is convenient for cleaning the lower screen plate 4.

[0025] Working principle, such as Figure 1-7As shown, this screening conveyor for rice processing allows rice to be continuously fed into the screening box 1. A vibrator 10 drives the screening box 1 to vibrate, causing initial screening of the rice through the upper screen plate 2. Larger grains are discharged through the first outlet 21 and the first discharge hood 22, and then conveyed by the first belt conveyor 12. Medium or smaller grains fall through the sieve holes on the upper screen plate 2 onto the lower screen plate 4. Medium-sized grains then discharge through the second outlet 41 and the second discharge hood 42, and are conveyed by the second belt conveyor 12. Smaller grains fall through the sieve holes on the lower screen plate 4 onto the discharge plate 7, and are discharged through the third outlet 71 and the third discharge hood 8, and then conveyed by the third belt conveyor 12. This facilitates grain size screening of the rice and allows for the conveying of rice of different sizes. If cleaning of the upper screen plate 2 and the lower screen plate 4 is required, [the following steps are taken]. The operator can screw the bottom end of the limiting rod 35 of the No. 1 screen plate position adjustment mechanism 3 out of the inside of the threaded opening 36 and pull the outer wall of the limiting rod 35 out of the inside of the handle 32. At this time, the operator can rotate the rotating rod 33 and the connecting block 34 through the handle 32. One side of the connecting block 34 drives the upper screen plate 2 and the arc-shaped limiting plate 6 to move. The upper screen plate 2 can be rotated to the outside of the screening box 1. At this time, the upper screen plate 2 can be cleaned. After cleaning, the handle 32 is rotated in the opposite direction and the upper screen plate 2 is moved to the inside of the screening box 1 in the same way for reset. Then, the bottom end of the limiting rod 35 is inserted through the handle 32 and screwed into the inside of the threaded opening 36 on the top of the support platform 31. The handle 32 can be limited and the upper screen plate 2 can be fixed inside the screening box 1. The lower screen plate 4 can be moved out of the inside of the screening box 1 through the No. 2 screen plate position adjustment mechanism 5 in the same way to facilitate the cleaning of the lower screen plate 4.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 screening conveyor for rice processing, comprising a screening box (1), characterized in that, The screening box (1) is internally fitted with an upper screen plate (2) and a lower screen plate (4). The upper screen plate (2) is located directly above the lower screen plate (4). An arc-shaped limiting plate (6) is fixedly connected to one side of both the upper screen plate (2) and the lower screen plate (4). Two arc-shaped grooves are opened on the outer wall of the screening box (1). The outer wall of the arc-shaped limiting plate (6) is movably fitted inside the arc-shaped groove. A first screen plate position adjustment mechanism (3) is installed on the left side of the screening box (1). The first screen plate position adjustment mechanism (3) includes a support platform (31). The right side of the support platform (31) is fixedly installed on the left side of the screening box (1). A rotating rod (33) is rotatably installed on the top of the support platform (31) through a bearing. A connecting block (34) is fixedly connected to the right side of the rotating rod (33). The right side of the connecting block (34) is fixedly connected to the left side of the upper screen plate (2). A rotating handle (32) is fixedly connected to the top of the rotating rod (33).

2. The screening conveyor for rice processing according to claim 1, characterized in that: The support platform (31) has a threaded opening (36) on one side of its top. A limit rod (35) is movably sleeved on one side inside the handle (32). The bottom end of the limit rod (35) is threaded into the inside of the threaded opening (36).

3. The screening conveyor for rice processing according to claim 1, characterized in that: Multiple sieve holes are provided on both the upper sieve plate (2) and the lower sieve plate (4). The diameter of the sieve holes on the upper sieve plate (2) is larger than that on the lower sieve plate (4). The top of the upper sieve plate (2) is tilted to the lower right. A first discharge port (21) is provided on the right side of the screening box (1). The first discharge port (21) is located above the right side of the upper sieve plate (2). A first discharge cover (22) is fixedly connected to the right side of the screening box (1). The first discharge cover (22) is located below the first discharge port (21).

4. The screening conveyor for rice processing according to claim 1, characterized in that: The top of the lower screen plate (4) is tilted downwards and backwards. The back of the screening box (1) is provided with a second discharge port (41). The second discharge port (41) is located above the back of the lower screen plate (4). The back of the screening box (1) is fixedly connected with a second discharge cover (42). The second discharge cover (42) is located below the second discharge port (41). The front of the screening box (1) is equipped with a second screen plate position adjustment mechanism (5). The structure of the second screen plate position adjustment mechanism (5) is the same as that of the first screen plate position adjustment mechanism (3).

5. The screening conveyor for rice processing according to claim 3, characterized in that: A discharge plate (7) is fixedly connected to the bottom of the inner wall of the screening box (1). The top of the discharge plate (7) is tilted to the lower left. A third discharge port (71) is opened on the left side of the screening box (1). The third discharge port (71) is located above the left side of the discharge plate (7). A third discharge cover (8) is fixedly connected to the left side of the screening box (1). The third discharge cover (8) is located below the third discharge port (71). A belt conveyor (12) is provided below the first discharge cover (22), the second discharge cover (42) and the third discharge cover (8). There are a total of three belt conveyors (12).

6. The screening conveyor for rice processing according to claim 1, characterized in that: The screening box (1) is provided with a base (9) below it. A vibrator (10) is fixedly installed in the middle of the top of the base (9). The vibrating end of the vibrator (10) is fixedly installed in the middle of the bottom of the screening box (1). Multiple support springs (11) are fixedly installed around the bottom of the screening box (1). The bottom end of the support springs (11) is fixedly connected to the top of the base (9).

Images