Screening device for wheat processing

Abstract

The utility model discloses a screening device for wheat processing, which belongs to the technical field of wheat processing equipment and comprises a fixing frame and a support frame, the inner wall of the fixing frame is respectively connected with a first screening plate and a second screening plate, one side of the first screening plate is connected with a first guide plate, and one side of the first guide plate is connected with one side of the fixing frame; according to the anti-blocking screening device, the first anti-blocking mechanism is arranged, the bottom of the second screening plate is knocked through a first knocking block, and the bottom of the first screening plate is knocked through a third knocking block and a second knocking block; therefore, large and hard impurities clamped in screen holes of the first screen plate and small and soft impurities clamped in screen holes of the second screen plate can be vibrated out of the screen holes, the situation that materials cannot pass through the screen plates due to blockage of the screen holes is avoided, the screening speed is increased, and the screening efficiency is improved. And impurities can be smoothly screened out through the screen holes, so that the screening effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheat processing equipment, and particularly relates to a screening device for wheat processing. Background Art

[0002] Wheat is a plant of the genus Triticum in the family Poaceae, and is also one of the most widely distributed, largest in area, second in total output, most in trade volume, and highest in nutritional value among food crops in the world. A wheat screening device is a piece of equipment mainly used for screening wheat to improve the quality and purity of wheat, so as to facilitate further processing of wheat later.

[0003] When the existing wheat screening device is in use, the screen of the screening device is often blocked by impurities attached to the wheat. Therefore, the material cannot pass through the screen smoothly, resulting in a slow screening speed, reduced screening efficiency, and the inability to completely screen out the impurities, reducing the screening effect. In addition, the feeding port of the feeding hopper of the existing wheat screening device is limited in size. When there is a large amount of wheat in the feeding hopper, it is easy to block the feeding port, so that normal feeding cannot be carried out, and further affect the screening efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems that when the existing wheat screening device is in use, the screen of the screening device is often blocked by impurities attached to the wheat, so the material cannot pass through the screen smoothly, resulting in a slow screening speed, reduced screening efficiency, and the inability to completely screen out the impurities, reducing the screening effect, and the feeding port of the feeding hopper of the existing wheat screening device is limited in size. When there is a large amount of wheat in the feeding hopper, it is easy to block the feeding port, so that normal feeding cannot be carried out, and further affect the screening efficiency, and to propose a screening device for wheat processing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A screening device for wheat processing, including a fixed frame and a support frame. The inner walls of the fixed frame are respectively connected with a first sieve plate and a second sieve plate. One side of the first sieve plate is connected with a first guiding plate, and one side of the first guiding plate is connected with one side of the fixed frame. One side of the second sieve plate is connected with a second guiding plate, and one side of the second guiding plate is connected with both sides of the fixed frame. A second anti-blocking mechanism is arranged on one side of the support frame, and a first anti-blocking mechanism is arranged on one side of the second sieve plate;

[0007] The first anti-blocking mechanism includes a motor and a first through groove. One side of the motor is connected to the bottom of the second sieve plate through a mounting seat. The output shaft of the motor is connected to a cam. The first through groove is opened in the second sieve plate. A first connecting rod is slidably connected to the inner wall of the first through groove. Both ends of the first connecting rod extend outside the first through groove. One end of the first connecting rod is connected to a fixing plate, and the other end of the first connecting rod is connected to a third connecting rod. The top of the fixing plate is connected to a first knocking block. The top of the first knocking block is in contact with the bottom of the second sieve plate. A first through hole is opened in the first knocking block. The inner wall of the first through hole is connected to the outer wall of the first connecting rod. A first spring is sleeved outside the first knocking block. Both ends of the first spring are respectively connected to the bottom of the second sieve plate and the top of the fixing plate. Both ends of the third connecting rod are connected to third knocking blocks. Two second connecting rods are connected to the outer wall of the third knocking block. The other ends of the second connecting rods are connected to second knocking blocks. The tops of the third knocking block and the second knocking block are both in contact with the bottom of the first sieve plate.

[0008] As a further description of the above technical solution:

[0009] Both sides of the fixed frame are connected with two rotating rods. The other ends of the rotating rods are rotatably connected with swing blocks. A second through groove is opened in the swing blocks. Both sides of the support frame are connected with two fixed rods. The outer walls of the fixed rods are rotatably connected with the inner walls of the second through grooves. One side of the support frame is connected with a feed funnel.

[0010] As a further description of the above technical solution:

[0011] The second anti-blocking mechanism includes two cylinders. One side of the cylinders is connected to one side of the support frame, and the ejector rods of the two cylinders are connected to the same moving plate.

[0012] As a further description of the above technical solution:

[0013] Two second through holes are opened in the moving plate. A sliding rod is slidably connected to the inner walls of the second through holes, and both ends of the sliding rod extend outside the second through holes.

[0014] As a further description of the above technical solution:

[0015] One end of the sliding rod is connected to a connecting plate. One side of the connecting plate is connected to one side of the feed funnel. A second spring is sleeved outside the sliding rod. Both ends of the second spring are respectively connected to the bottom of the connecting plate and one side of the moving plate.

[0016] As a further description of the above technical solution:

[0017] One side of the moving plate is connected to an anti-blocking plate. One side of the anti-blocking plate extends into the feed funnel. Both sides of the anti-blocking plate are in contact with the inner walls of the feed funnel.

[0018] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0019] 1. In the present utility model, by setting the first anti-blocking mechanism, the rotation of the output shaft of the motor drives the rotation of the cam, so that the cam contacts the fixed plate and drives the fixed plate to move downward. At the same time, the first spring generates elastic force. The downward movement of the fixed plate drives the first knocking block, the first connecting rod, the third connecting rod, the third knocking block, the second connecting rod and the second knocking block to move downward together. When the fixed plate is separated from the cam, the first spring drives the first knocking block through the fixed plate to knock on the bottom of the second sieve plate. At the same time, the first knocking block drives the third knocking block through the first connecting rod and the third connecting rod to knock on the bottom of the first sieve plate, and the third knocking block also drives the second knocking block through the second connecting rod to knock on the bottom of the first sieve plate. As a result, larger and harder impurities stuck in the sieve holes of the first sieve plate and smaller and softer impurities stuck in the sieve holes of the second sieve plate can be shaken out of the sieve holes, so that the material will not be unable to pass through the sieve plate due to the blockage of the sieve holes, which speeds up the screening speed, improves the screening efficiency, and all impurities can pass through the sieve holes smoothly to be screened out, improving the screening effect.

[0020] 2. In the present utility model, by setting the second anti-blocking mechanism, the up and down movement of the cylinder ejector rod drives the moving plate and the anti-blocking plate to move up and down, so that the anti-blocking plate can move up and down in the discharge port of the feed hopper, thereby being able to push the wheat in the feed hopper to prevent the wheat from accumulating around the discharge port and causing blockage of the discharge port, avoiding the situation that the discharge port cannot discharge normally after being blocked and delaying the wheat screening time, saving the time required for dredging the discharge port, and thus improving the working efficiency of wheat screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is an exploded structural schematic diagram of the first sieve plate of the present utility model;

[0023] Figure 3 is a sectional structural schematic diagram of the second sieve plate of the present utility model;

[0024] Figure 4 is a structural schematic diagram of the second anti-blocking mechanism of the present utility model;

[0025] Figure 5 is a structural schematic diagram of the connecting plate of the present utility model.

[0026] Legend: 1. Fixed frame; 2. Rotating rod; 3. Swing block; 4. First anti-blocking mechanism; 401. Motor; 402. Cam; 403. Fixed plate; 404. First through hole; 405. First spring; 406. First knocking block; 407. First connecting rod; 408. Second connecting rod; 409. Second knocking block; 410. Third knocking block; 411. First through groove; 412. Third connecting rod; 5. Second anti-blocking mechanism; 501. Connecting plate; 502. Moving plate; 503. Cylinder; 504. Second through hole; 505. Slide bar; 506. Second spring; 507. Anti-blocking plate; 6. Support frame; 7. Fixed rod; 8. Feed hopper; 9. First sieve plate; 10. First guiding plate; 11. Second guiding plate; 12. Second sieve plate; 13. Second through groove. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-5 , the present invention provides a technical solution: a screening device for wheat processing, including a fixed frame 1 and a support frame 6. The inner walls of the fixed frame 1 are respectively connected with a first sieve plate 9 and a second sieve plate 12. One side of the first sieve plate 9 is connected with a first guiding plate 10, and one side of the first guiding plate 10 is connected with one side of the fixed frame 1. One side of the second sieve plate 12 is connected with a second guiding plate 11, and one side of the second guiding plate 11 is connected with both sides of the fixed frame 1. A second anti-blocking mechanism 5 is arranged on one side of the support frame 6, and a first anti-blocking mechanism 4 is arranged on one side of the second sieve plate 12;

[0029] The first anti-blocking mechanism 4 includes a motor 401 and a first through groove 411. One side of the motor 401 is connected to the bottom of the second sieve plate 12 through a mounting seat. A cam 402 is connected to the output shaft of the motor 401. The first through groove 411 is formed in the second sieve plate 12. A first connecting rod 407 is slidably connected to the inner wall of the first through groove 411. Both ends of the first connecting rod 407 extend outside the first through groove 411. One end of the first connecting rod 407 is connected to a fixing plate 403, and the other end of the first connecting rod 407 is connected to a third connecting rod 412. A first knocking block 406 is connected to the top of the fixing plate 403. The top of the first knocking block 406 is in contact with the bottom of the second sieve plate 12. A first through hole 404 is formed in the first knocking block 406. The inner wall of the first through hole 404 is connected to the outer wall of the first connecting rod 407. A first spring 405 is sleeved outside the first knocking block 406. Both ends of the first spring 405 are respectively connected to the bottom of the second sieve plate 12 and the top of the fixing plate 403. Both ends of the third connecting rod 412 are connected to third knocking blocks 410. Two second connecting rods 408 are connected to the outer wall of the third knocking blocks 410. The other ends of the second connecting rods 408 are connected to second knocking blocks 409. The tops of the third knocking blocks 410 and the second knocking blocks 409 are both in contact with the bottom of the first sieve plate 9.

[0030] The specific implementation method is as follows: By setting the first anti-blocking mechanism 4, the rotation of the output shaft of the motor 401 drives the rotation of the cam 402. During the rotation of the cam 402, it will contact the fixing plate 403 on one side of the cam 402 and can drive the fixing plate 403 to move downward. The downward movement of the fixing plate 403 drives the stretching of the first spring 405, causing the first spring 405 to generate an upward elastic force. At the same time, it drives the first knocking block 406 to move downward. The first knocking block 406 drives the two third knocking blocks 410 to move downward through the first connecting rod 407 and the third connecting rod 412. The third knocking block 410 drives the second knocking block 409 to move downward through the second connecting rod 408. When the fixing plate 403 is separated from the cam 402, the first spring 405 releases the elastic force to drive the fixing plate 403 and the first knocking block 406 to move upward, so that the first knocking block 406 knocks on the bottom of the second sieve plate 12. At the same time, the first knocking block 406 drives the third knocking block 410 to knock on the bottom of the first sieve plate 9 through the first connecting rod 407 and the third connecting rod 412. And the third knocking block 410 will also drive the second knocking block 409 to knock on the bottom of the first sieve plate 9 through the second connecting rod 408. Through the knocking of the first knocking block 406, the second knocking block 409 and the third knocking block 410, the larger and harder impurities stuck in the sieve holes of the first sieve plate 9 and the smaller and softer impurities stuck in the sieve holes of the second sieve plate 12 can be shaken out of the sieve holes, so that the material will not be unable to pass through the sieve plate due to the blockage of the sieve holes, accelerating the screening speed, improving the screening efficiency, and enabling the impurities to pass through the sieve holes smoothly and be screened out, improving the screening effect.

[0031] Two rotating rods 2 are connected to both sides of the fixed frame 1. The other end of the rotating rod 2 is rotatably connected to a swinging block 3. A second through groove 13 is formed in the swinging block 3. Two fixed rods 7 are connected to both sides of the support frame 6. The outer wall of the fixed rod 7 is rotatably connected to the inner wall of the second through groove 13. A feeding funnel 8 is connected to one side of the support frame 6. The second anti-blocking mechanism 5 includes two cylinders 503. One side of the cylinder 503 is connected to one side of the support frame 6. The ejector rods of the two cylinders 503 are connected to the same moving plate 502. Two second through holes 504 are formed in the moving plate 502. A sliding rod 505 is slidably connected to the inner wall of the second through hole 504. Both ends of the sliding rod 505 extend outside the second through hole 504. One end of the sliding rod 505 is connected to a connecting plate 501. One side of the connecting plate 501 is connected to one side of the feeding funnel 8. A second spring 506 is sleeved on the sliding rod 505. The two ends of the second spring 506 are respectively connected to the bottom of the connecting plate 501 and one side of the moving plate 502. One side of the moving plate 502 is connected to a blocking plate 507. One side of the blocking plate 507 extends into the feeding funnel 8. Both sides of the blocking plate 507 are in contact with the inner wall of the feeding funnel 8.

[0032] The specific implementation method is as follows: By setting the second anti-blocking mechanism 5, the up and down movement of the ejector rod of the cylinder 503 drives the up and down movement of the moving plate 502. The up and down movement of the moving plate 502 drives the blocking plate 507 to move up and down in the discharge port of the feeding funnel 8, so that the blocking plate 507 can push the wheat in the feeding funnel 8, preventing the wheat from accumulating around the discharge port and causing the blockage of the discharge port, thereby avoiding the inability to discharge normally after the discharge port is blocked and delaying the time for wheat screening, saving the time required for dredging the discharge port, and thus improving the working efficiency of wheat screening.

[0033] Working principle: When in use, put the wheat mixed with impurities into the feeding hopper 8. At the same time, start the cylinder 503. The ejector rod of the cylinder 503 moves up and down to drive the moving plate 502 to move up and down. The up and down movement of the moving plate 502 drives the anti-blocking plate 507 to move up and down in the discharge port of the feeding hopper 8, so that the anti-blocking plate 507 can push the wheat in the feeding hopper 8 to prevent the wheat from accumulating around the discharge port and causing the blockage of the discharge port. When the wheat and impurities fall onto the first sieve plate 9, since the sieve holes of the first sieve plate 9 are larger than the wheat, the wheat can fall through the sieve holes of the first sieve plate 9 onto the second sieve plate 12, while the impurities larger than the wheat will remain on the first sieve plate 9 and be discharged from the first guiding plate 10. After the wheat falls onto the second sieve plate 12, the impurities smaller than the wheat will be filtered out by the second sieve plate 12, and finally the clean wheat will be discharged from the second guiding plate 11. When screening the wheat, start the motor 401. The output shaft of the motor 401 rotates to drive the cam 402 to rotate. During the rotation of the cam 402, it will contact the fixed plate 403 on one side of the cam 402 and can drive the fixed plate 403 to move downward. The downward movement of the fixed plate 403 drives the first spring 405 to stretch, causing the first spring 405 to generate an upward elastic force. At the same time, it drives the first knocking block 406 to move downward. The first knocking block 406 drives the two third knocking blocks 410 to move downward through the first connecting rod 407 and the third connecting rod 412. The third knocking block 410 drives the second knocking block 409 to move downward through the second connecting rod 408. When the fixed plate 403 is separated from the cam 402, the first spring 405 releases the elastic force to drive the fixed plate 403 and the first knocking block 406 to knock upward on the bottom of the second sieve plate 12, so that the small and soft impurities stuck in the sieve holes of the second sieve plate 12 can be shaken out of the sieve holes to prevent the impurities from blocking the second sieve plate 12. At the same time, the first knocking block 406 drives the third knocking block 410 to knock on the bottom of the first sieve plate 9 through the first connecting rod 407 and the third connecting rod 412, and the third knocking block 410 also drives the second knocking block 409 to knock on the bottom of the first sieve plate 9 through the second connecting rod 408, so that the large and hard impurities stuck in the sieve holes of the first sieve plate 9 can be shaken out of the sieve holes to prevent the impurities from blocking the first sieve plate 9.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A screening device for wheat processing, comprising a fixed frame (1) and a support frame (6), characterized in that: The inner walls of the fixed frame (1) are respectively connected with a first sieve plate (9) and a second sieve plate (12). One side of the first sieve plate (9) is connected with a first guiding plate (10), and one side of the first guiding plate (10) is connected with one side of the fixed frame (1). One side of the second sieve plate (12) is connected with a second guiding plate (11), and one side of the second guiding plate (11) is connected with both sides of the fixed frame (1). A second anti-blocking mechanism (5) is arranged on one side of the support frame (6), and a first anti-blocking mechanism (4) is arranged on one side of the second sieve plate (12). The first anti-blocking mechanism (4) includes a motor (401) and a first through groove (411). One side of the motor (401) is connected to the bottom of the second sieve plate (12) through a mounting seat. The output shaft of the motor (401) is connected with a cam (402). The first through groove (411) is opened in the second sieve plate (12). A first connecting rod (407) is slidably connected to the inner wall of the first through groove (411). Both ends of the first connecting rod (407) extend outside the first through groove (411). One end of the first connecting rod (407) is connected with a fixing plate (403), and the other end of the first connecting rod (407) is connected with a third connecting rod (412). The top of the fixing plate (403) is connected with a first knocking block (406). The top of the first knocking block (406) is in contact with the bottom of the second sieve plate (12). A first through hole (404) is opened in the first knocking block (406). The inner wall of the first through hole (404) is connected with the outer wall of the first connecting rod (407). A first spring (405) is sleeved outside the first knocking block (406). Both ends of the first spring (405) are respectively connected with the bottom of the second sieve plate (12) and the top of the fixing plate (403). Both ends of the third connecting rod (412) are connected with third knocking blocks (410). Two second connecting rods (408) are connected to the outer wall of the third knocking blocks (410). The other ends of the second connecting rods (408) are connected with second knocking blocks (409). The tops of the third knocking blocks (410) and the second knocking blocks (409) are both in contact with the bottom of the first sieve plate (9).

2. The screening device for wheat processing according to claim 1, wherein: Two rotating rods (2) are respectively connected to both sides of the fixed frame (1). The other ends of the rotating rods (2) are rotatably connected with swing blocks (3). A second through groove (13) is opened in the swing blocks (3). Two fixed rods (7) are respectively connected to both sides of the support frame (6). The outer walls of the fixed rods (7) are rotatably connected with the inner walls of the second through grooves (13). A feed funnel (8) is connected to one side of the support frame (6).

3. The screening device for wheat processing according to claim 1, characterized in that: The second anti-blocking mechanism (5) includes two cylinders (503). One side of the cylinders (503) is connected with one side of the support frame (6), and the ejector rods of the two cylinders (503) are connected with the same moving plate (502).

4. A screening device for wheat processing according to claim 3, characterized in that: Two second through holes (504) are opened in the moving plate (502). A sliding rod (505) is slidably connected to the inner walls of the second through holes (504), and both ends of the sliding rod (505) extend outside the second through holes (504).

5. The screening device for wheat processing according to claim 4, characterized in that: One end of the sliding rod (505) is connected with a connecting plate (501). One side of the connecting plate (501) is connected with one side of the feeding funnel (8). A second spring (506) is sleeved outside the sliding rod (505). Two ends of the second spring (506) are respectively connected with the bottom of the connecting plate (501) and one side of the moving plate (502).

6. The screening device for wheat processing according to claim 3, wherein: One side of the moving plate (502) is connected with a blocking prevention plate (507). One side of the blocking prevention plate (507) extends into the feeding funnel (8). Both sides of the blocking prevention plate (507) are attached to the inner wall of the feeding funnel (8).

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