Rice length grading and screening device

Abstract

The utility model belongs to the technical field of screening devices, and particularly relates to a rice length grading screening device which comprises a square-shaped frame and further comprises a porous screen plate, the porous screen plate is arranged in an inclined mode and installed in the square-shaped frame in a drawing mode, a disassembly and assembly opening for the porous screen plate to penetrate through is machined in the outer wall of the square-shaped frame, and the porous screen plate is arranged in the square-shaped frame. A discharging opening is formed in the position, corresponding to the bottom end of the porous sieve plate, of the square-shaped frame; the positioning column is fixed to the top end of the square-shaped frame, and a positioning groove allowing the positioning column to be embedded therein is machined in the bottom end of the square-shaped frame; after the two square frames are assembled in a stacked mode, the two square frames are locked through the limiting mechanism; the multi-hole sieve plate is installed in a drawing mode and is convenient to assemble and disassemble, meanwhile, a plurality of square-shaped frames can be combined according to actual machining requirements to achieve multi-stage screening, only one square-shaped frame can be used for screening operation, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screening device technical field, concretely relates to a rice length grading screening device. BACKGROUND

[0002] In the rice processing process, it is often necessary to screen the rice to separate the rice of different particle sizes.

[0003] At present, there are many devices that can be used for screening rice, and the vibrating screen is a commonly used device for rice grading screening. However, the screen of the prior art vibrating screen is usually fixed and installed using bolts, which is more troublesome to disassemble, and is not convenient for disassembly, maintenance or replacement of different specifications of the screen.

[0004] In the prior art, the Chinese utility model patent with the authorization announcement number CN221934585U discloses a "grading screen for rice processing", which includes a device main body, the device main body includes a screening box, the inside of the screening box is provided with a mounting frame, the inside of the mounting frame is provided with a clamping groove, the inside of the clamping groove is connected with a sieve plate in a plug-in manner, which is simple to operate, convenient and fast, and facilitates the replacement of the sieve plate.

[0005] Although the grading screen in the prior art including the above facilitates the replacement of the sieve plate, it is difficult to combine multiple device main bodies to achieve multi-stage screening according to different needs in actual use, and there is a high use limitation.

[0006] To solve the above problems, the utility model provides a rice length grading screening device. UTILITY MODEL CONTENTS

[0007] To solve the above problems in the prior art, the utility model provides a rice length grading screening device, which has the characteristics of convenient use, easy combination and wide application range.

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a rice length grading screening device, which includes a mouth-shaped frame, and further includes:

[0009] A multi-hole sieve plate is arranged in an inclined manner and installed in the mouth-shaped frame by pulling, a dismounting opening is formed in the outer wall of the mouth-shaped frame for the multi-hole sieve plate to pass through, and a discharge opening is formed on the mouth-shaped frame corresponding to the bottom end of the multi-hole sieve plate;

[0010] A positioning column is fixed to the top end of the mouth-shaped frame, and a positioning groove is formed in the bottom end of the mouth-shaped frame for the positioning column to be embedded;

[0011] The limiting mechanism is used for locking after two said H-shaped frame layers are stacked and assembled.

[0012] As a preferred technical scheme of the utility model, the transverse section of the H-shaped frame is a square structure.

[0013] As a preferred technical scheme of the utility model, the positioning column and the positioning groove are both distributed with four in the circumferential direction.

[0014] As a preferred technical scheme of the utility model, further comprising:

[0015] The limiting plate is fixed to one end of the multi-hole sieve plate, and a fixed block is fixed on the limiting plate;

[0016] The locking bolt is screwed into the threaded hole in the outer wall of the H-shaped frame through the fixed block in a threaded manner.

[0017] As a preferred technical scheme of the utility model, further comprising:

[0018] The U-shaped insertion frame is fixed in the H-shaped frame in a position corresponding to the disassembly opening in an inclined manner, and an insertion slot for embedding the multi-hole sieve plate is processed in the U-shaped insertion frame.

[0019] As a preferred technical scheme of the utility model, a discharging notch is processed on the top surface of the U-shaped insertion frame near the discharging opening, and the bottom surface of the discharging notch is level with the inner bottom surface of the discharging opening and is lower than the top surface of the multi-hole sieve plate.

[0020] As a preferred technical scheme of the utility model, the limiting mechanism comprises:

[0021] The positioning stub is fixed to the outer wall of the H-shaped frame;

[0022] The positioning plate is processed with a positioning hole for the positioning stub to penetrate;

[0023] The mounting column is fixed to the outer wall of the H-shaped frame and penetrates the positioning plate;

[0024] The limiting disc is fixed to the protruding end of the mounting column;

[0025] The reset spring is sleeved on the mounting column and is between the positioning plate and the limiting disc.

[0026] As a preferred technical scheme of the utility model, the limiting mechanism further comprises:

[0027] A pull ring is fixed to the outer wall of the positioning plate.

[0028] Compared with the prior art, the beneficial effects of this utility model are:

[0029] In this invention, the perforated sieve plate is a pull-out type, which is convenient to install and remove. At the same time, multiple U-shaped frames can be combined to achieve multi-stage screening according to actual processing needs, or only one U-shaped frame can be used for screening operations, making it widely applicable.

[0030] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0034] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0035] Figure 4 This utility model Figure 2 A schematic diagram of the enlarged structure of the limiting mechanism in the middle;

[0036] Figure 5 This is a schematic diagram of the U-shaped insert frame structure in this utility model.

[0037] In the diagram: 1. U-shaped frame; 11. Disassembly / assembly port; 12. Feeding port; 13. Positioning post; 14. Positioning groove; 15. Threaded hole; 2. Perforated screen plate; 3. U-shaped insert frame; 31. Slot; 32. Feeding notch; 4. Limiting mechanism; 41. Positioning short post; 42. Positioning plate; 421. Positioning hole; 43. Mounting post; 44. Limiting plate; 45. Return spring; 46. Pull ring; 5. Limiting plate; 51. Fixing block; 6. Locking bolt. Detailed Implementation

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0039] Please refer to Figures 1-5 The utility model provides the following technical scheme: a rice length grading screening device, including a square frame 1, further comprising: a perforated sieve plate 2, a positioning column 13 and a limiting mechanism 4.

[0040] Further, as shown in the drawings, Figure 1 In the embodiment, the perforated sieve plate 2 is arranged in an inclined manner and is installed in the square frame 1 by pulling, a dismounting opening 11 is processed on the outer wall of the square frame 1 for the perforated sieve plate 2 to pass through, a discharge opening 12 is processed on the square frame 1 at a position corresponding to the bottom end of the perforated sieve plate 2, the positioning column 13 is fixed to the top end of the square frame 1, a positioning groove 14 is processed on the bottom end of the square frame 1 for the positioning column 13 to be embedded, and the two square frames 1 are locked after being stacked and assembled by using the limiting mechanism 4. After the above scheme is used, in use, the square frame 1 is fixed on the vibrating base of the vibrating screen by using bolts, the perforated sieve plate 2 is installed in the square frame 1 by pulling, the material is fed from above the square frame 1, the vibrating base drives the square frame 1 to vibrate, the perforated sieve plate 2 vibrates, and the rice is screened. The rice with a smaller particle size will pass through the screen holes of the perforated sieve plate 2 and be discharged from the bottom end of the square frame 1, and the rice with a larger particle size will slide along the inclined surface of the perforated sieve plate 2 and finally be discharged from the discharge opening 12. When necessary, the square frames 1 can be stacked and combined, the positioning column 13 is positioned by being embedded in the positioning groove 14 of the upper square frame 1, and the limiting mechanism 4 is used for locking, so as to ensure the stability of the combined square frames 1, multi-stage screening can be realized, the perforated sieve plate 2 of the utility model is installed by pulling, is convenient to mount and dismount, can be combined with the square frames 1 according to actual processing needs to realize multi-stage screening, or only one square frame 1 can be used for screening operation, and the utility model is widely applicable.

[0041] It should be noted that the vibrating base of the vibrating screen is a very common device, and its structure and vibration principle are all prior art which has been fully disclosed, and therefore will not be described in detail herein.

[0042] It should be noted that when the plurality of Kouzi frame 1 is combined, the Kouzi frame 1 needs to be rotated by a certain angle, so that the discharging port 12 on different Kouzi frames 1 is staggered, so that different sizes of rice are not mixed after discharging. In addition, the pore size of the multi-hole sieve plate 2 in each layer is different, specifically, the pore size of the upper multi-hole sieve plate 2 is larger, and the pore size of the multi-hole sieve plate 2 decreases from top to bottom.

[0043] Optionally, as shown in Figure 1 and Figure 2 , in the embodiment, the transverse section of the Kouzi frame 1 is a square structure. After using the above scheme, the screening device of the utility model can combine four Kouzi frames 1 under the premise of ensuring safe discharging, and the four discharging ports 12 are in different directions after combination, that is, the four sides of the four Kouzi frame 1 combination.

[0044] It should be noted that the above scheme is only an exemplary scheme of the utility model and is not used to limit the utility model, because in principle, three or four levels of screening can completely meet the actual production needs. If more levels of screening are needed, more Kouzi frames 1 can be combined, and the shape of the Kouzi frame 1 is not limited to a square structure. When more than four Kouzi frames 1 are combined, the top and bottom of the Kouzi frame 1 is preferably designed as a circle, and the middle part still adopts a square structure. The square structure in the middle part facilitates the pull-out installation of the multi-hole sieve plate 2, and the circular structure at the top and bottom can be freely rotated at a suitable angle. This can not only ensure the reliable combination of the Kouzi frames 1, but also stagger the discharging ports 12 on different Kouzi frames 1 to avoid mixing of different sizes of rice after discharging.

[0045] Optionally, as shown in Figure 1 , in the embodiment, the positioning column 13 and the positioning groove 14 are equally spaced in the circumferential direction. In principle, the number of positioning columns 13 and positioning grooves 14 is more than two, which can avoid relative rotation of the Kouzi frame 1 after combination and improve the stability of the Kouzi frame 1 after combination.

[0046] Preferably, as shown in Figure 1 and Figure 3 , in the embodiment, it further includes a limiting plate 5 and a locking bolt 6. The limiting plate 5 is fixed to one end of the multi-hole sieve plate 2, and a fixed block 51 is fixed on the limiting plate 5. Threaded holes 15 are processed on the outer wall of the Kouzi frame 1. The locking bolt 6 penetrates the fixed block 51 and is screwed into the threaded hole 15 by screwing. After using the above scheme, after the multi-hole sieve plate 2 is pushed into the Kouzi frame 1 from the dismounting port 11, the locking bolt 6 is tightened to ensure the stability of the multi-hole sieve plate 2. After the locking bolt 6 is unscrewed, the multi-hole sieve plate 2 can be pulled out, which is convenient for dismounting.

[0047] Preferably, as shown in Figure 1 In the embodiment, a U-shaped insertion frame 3 is fixed in an inclined manner in the mouth-shaped frame 1 at a position corresponding to the disassembly opening 11, and an insertion slot 31 for embedding the multi-hole sieve plate 2 is processed in the U-shaped insertion frame 3. After the above scheme is adopted, in use, the multi-hole sieve plate 2 is supported by the U-shaped insertion frame 3, further improving the stability of the installation of the multi-hole sieve plate 2, and the U-shaped insertion frame 3 is also used for positioning the installation position of the multi-hole sieve plate 2, ensuring the reliability of the installation position of the multi-hole sieve plate 2.

[0048] Preferably, as shown in Figure 1 and Figure 5 In the embodiment, a discharging gap 32 is processed on the top surface of the U-shaped insertion frame 3 near the discharging opening 12, the bottom surface of the discharging gap 32 is level with the inner bottom surface of the discharging opening 12, and is lower than the top surface of the multi-hole sieve plate 2. After the above scheme is adopted, in use, the design of the discharging gap 32 is conducive to the reliable discharge of rice from the discharging opening 12, avoiding the blocking of rice by the U-shaped insertion frame 3.

[0049] Optionally, as shown in Figure 1 , Figure 2 and Figure 4 In the embodiment, the limiting mechanism 4 includes a positioning short column 41, a positioning plate 42, a mounting column 43, a limiting disc 44, and a return spring 45. The positioning short column 41 is fixed to the outer wall of the mouth-shaped frame 1, the positioning plate 42 is provided with a positioning hole 421 through which the positioning short column 41 penetrates, the mounting column 43 is fixed to the outer wall of the mouth-shaped frame 1 and penetrates the positioning plate 42, the limiting disc 44 is fixed to the protruding end of the mounting column 43, and the return spring 45 is sleeved on the mounting column 43 and is between the positioning plate 42 and the limiting disc 44. After the above scheme is adopted, in use, when the mouth-shaped frames 1 are combined, the positioning plate 42 is pulled out, at which time the return spring 45 is in a contracted state. When the positioning plate 42 passes the positioning short column 41, the positioning plate 42 is rotated by a certain angle until the positioning hole 421 corresponds to the positioning short column 41, at which time the positioning plate 42 is loosened, the return spring 45 releases the elastic force to reset the positioning plate 42, and the positioning short column 41 penetrates the positioning hole 421 to avoid the rotation of the positioning plate 42. The positioning plate 42 further improves the stability of the combined mouth-shaped frames 1, avoiding the vertical separation of adjacent mouth-shaped frames 1.

[0050] Preferably, as shown in Figure 1 , Figure 2 and Figure 4 In the embodiment, the limiting mechanism 4 further includes a pull ring 46 fixed to the outer wall of the positioning plate 42. After the above scheme is adopted, in use, the pull ring 46 is easy to pull the positioning plate 42.

[0051] The components not described in detail herein are prior art.

[0052] The working principle and use process of the utility model: the screening device of the utility model, when using, the character frame 1 is fixed on the vibrating base of the vibrating screen by bolt, and the perforated screen plate 2 is installed in the character frame 1 by pulling mode, after the perforated screen plate 2 is pushed into the character frame 1 from the dismounting opening 11, positioning and supporting are realized through the U-shaped inserting frame 3, and the locking bolt 6 is screwed tightly, so that the stability of the installation of the perforated screen plate 2 is ensured;

[0053] The material is fed from the top of the character frame 1, the vibrating base drives the character frame 1 to vibrate, the perforated screen plate 2 vibrates, and the rice is screened, the rice with smaller granularity can pass through the screen hole of the perforated screen plate 2 and is discharged from the bottom end of the character frame 1, and the rice with larger granularity can slide along the inclined surface of the perforated screen plate 2 and is finally discharged from the discharge opening 12;

[0054] When necessary, the plurality of character frames 1 can be combined in layers, the positioning column 13 is embedded into the positioning groove 14 of the upper character frame 1 for positioning, and the limiting mechanism 4 is locked, so that the stability of the combined character frames 1 is ensured, and multi-stage screening can be realized;

[0055] The perforated screen plate 2 of the utility model is installed in the pulling mode, is convenient to assemble and disassemble, can be combined with the plurality of character frames 1 according to actual processing needs to realize multi-stage screening, or only one character frame 1 can be used for screening operation, and the utility model is widely applicable.

[0056] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rice length grading and sorting device comprising a Chinese character frame (1), characterized in that, Also include: Porous sieve plate (2), the porous sieve plate (2) is arranged in an inclined manner and is installed in the mouth-shaped frame (1) by pulling, a dismounting opening (11) is processed on the outer wall of the mouth-shaped frame (1) for the porous sieve plate (2) to pass through, and a discharging opening (12) is processed on the mouth-shaped frame (1) corresponding to the position of the bottom end of the porous sieve plate (2); Positioning column (13), the positioning column (13) is fixed to the top end of the mouth-shaped frame (1), and a positioning groove (14) is processed at the bottom end of the mouth-shaped frame (1) for the positioning column (13) to be embedded; Limiting mechanism (4), two mouth-shaped frames (1) are stacked and assembled, and then locked by the limiting mechanism (4); The limiting mechanism (4) comprises: Positioning stub (41), the positioning stub (41) is fixed to the outer wall of the mouth-shaped frame (1); Positioning plate (42), a positioning hole (421) is processed on the positioning plate (42) for the positioning stub (41) to pass through; Mounting column (43), the mounting column (43) is fixed to the outer wall of the mouth-shaped frame (1) and passes through the positioning plate (42); Limiting disc (44), the limiting disc (44) is fixed to the protruding end of the mounting column (43); Reset spring (45), the reset spring (45) is sleeved on the mounting column (43) and is between the positioning plate (42) and the limiting disc (44).

2. A rice length grading and sorting apparatus according to claim 1, wherein: The transverse section of the mouth-shaped frame (1) is a square structure.

3. A rice length grading and sorting apparatus as claimed in claim 1, wherein: The positioning column (13) and the positioning groove (14) are both distributed in a circumferential direction with four equal intervals.

4. The rice length grading and sorting apparatus according to claim 1, wherein: Also include: Limiting plate (5), the limiting plate (5) is fixed to one end of the porous sieve plate (2), and a fixing block (51) is fixed to the limiting plate (5); Locking bolt (6), a threaded hole (15) is processed on the outer wall of the mouth-shaped frame (1), and the locking bolt (6) is screwed into the threaded hole (15) after passing through the fixing block (51) in a threaded manner.

5. A rice length grading and sorting apparatus as claimed in claim 1, wherein: Also include: U-shaped insertion frame (3), the U-shaped insertion frame (3) is fixed in an inclined manner in the mouth-shaped frame (1) corresponding to the position of the dismounting opening (11), and an insertion groove (31) is processed in the U-shaped insertion frame (3) for the porous sieve plate (2) to be embedded.

6. A rice length grading and sorting apparatus as claimed in claim 5, wherein: A discharging notch (32) is processed on the top surface of the U-shaped insertion frame (3) near the discharging opening (12), the bottom surface of the discharging notch (32) is level with the inner bottom surface of the discharging opening (12), and is lower than the top surface of the porous sieve plate (2).

7. A rice length grading and sorting apparatus as claimed in claim 1, wherein: The limiting mechanism (4) further comprises: Pull ring (46), the pull ring (46) is fixed to the outer wall of the positioning plate (42).

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