Screening device for laying hen feed production

Abstract

The screening device for laying hen feed production comprises a screening device body, a vibrating device is arranged at the bottom of the screening device body, a screening box is arranged at the upper end of the middle of the vibrating device, and supporting sliding grooves are formed in the left inner side wall and the right inner side wall of the screening box. The left ends and the right ends of the first screening plate, the second screening plate and the magnetic screening plate are located in the supporting sliding grooves and slidably connected with the screening box, the left ends of the first screening plate and the second screening plate are higher than the right ends of the first screening plate and the second screening plate, and a sliding baffle is arranged on the front side wall of the screening box and slidably connected with the screening box in a matched mode. The collecting box is connected with the screening box in a sliding connection mode in a matched mode. In general, the utility model has the advantages that the structure is simple, the occupied space is saved, and the collected feed can be cleaner by arranging a plurality of screening plates.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed production, and in particular relates to a screening device for laying hen feed production. Background Art

[0002] Feed is a general term for food for all animals raised by humans. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, additives, whey powder, oils, meat and bone meal, grains, sweet sorghum, etc. In the process of feed production, some special nutritional costs need to be added: amino acids, whey powder and meat and bone meal, etc. These added ingredients are trace elements and need to be added regularly and quantitatively during the feed processing and production process.

[0003] In the process of animal husbandry, feed needs to be processed. Feed processing involves feed screening so that the particle size of the feed meets the requirements, thereby improving the absorption effect of the animal. Most of the existing feed screening is done manually, and the efficiency of manual operation is relatively low, which cannot meet the needs of large-scale animal breeding. Some of them use mechanical methods to screen the feed, but the existing mechanical screening equipment occupies a large area and is generally composed of multi-stage screening equipment connected together to form a screening equipment. Moreover, during the screening process, it is impossible to select a suitable screening plate according to the screening requirements and it is also impossible to clean the surface of the screening plate in time, resulting in incomplete screening. Therefore, it is of great application significance to develop a screening device for laying hen feed production that has a simple structure, saves space, and can collect cleaner feed by setting multiple screening plates. Utility Model Content

[0004] The utility model aims to provide a screening device for laying hen feed production to solve the problem that the existing feed screening is mostly done manually, the manual operation efficiency is relatively low, and it cannot meet the needs of large-scale animal breeding. Some feeds are screened mechanically, but the existing mechanical screening equipment occupies a large area and is generally composed of a screening system composed of multiple-stage screening equipment connected together. Moreover, during the screening process, it is impossible to select a suitable screening plate according to the screening requirements and it is also impossible to clean the surface of the screening plate in time, resulting in incomplete screening. Therefore, it is of great application significance to develop a wheel hub flip cleaning device with a simple structure, suitable for wheels of different sizes, and reducing water waste.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A screening device for laying hen feed production, comprising a screening device body, a vibrating device is arranged at the bottom of the screening device body, a screening box is arranged at the middle upper end of the vibrating device, and supporting chutes are arranged on the left and right inner walls of the screening box. The left and right ends of the first screening plate, the second screening plate and the magnetic screening plate are located in the supporting chutes and are slidably connected to the screening box. The left ends of the first screening plate and the second screening plate are higher than the right ends. A sliding baffle is arranged on the front side wall of the screening box, and the sliding baffle is connected to the screening box in a sliding connection manner. A collecting box is arranged at the bottom of the screening box, and the collecting box is connected to the screening box in a sliding connection manner.

[0007] Furthermore, a feed hopper is provided at the upper left end of the top of the sub-screening box, a first supporting chute is provided at the top of the left inner wall of the sub-screening box, a second supporting chute is provided at the lower right end of the first supporting chute, a third supporting chute is provided at the lower left end of the second supporting chute, a fourth supporting chute is provided at the lower right end of the third supporting chute, a fifth supporting chute is provided at the lower end of the fourth supporting chute, a limiting slot is fixedly provided on the front side wall of the sub-screening box, and an upper discharge port and a lower discharge port are provided above the second supporting chute and the fourth supporting chute;

[0008] By arranging a supporting slot on the inner side wall of the screening box, the horizontal angle between the first supporting slot and the second supporting slot is between 10° and 15°, and the horizontal angle between the third supporting slot and the fourth supporting slot is between 10° and 15°. The first screening plate and the second screening plate are slidably connected to the supporting slot and the left end is higher than the right end. When the feed falls above the first screening plate and the second screening plate, it can rely on gravity to slide to the right and slide out from the upper and lower discharge ports to achieve the purpose of automatic screening of the feed. In addition, by arranging a limiting slot on the front side wall of the screening box, the sliding baffle is located in the limiting slot and is slidably connected to the screening box. The sliding baffle is a transparent structure. During use, the sliding baffle can block the feed. At the same time, when the first screening plate, the second screening plate, the magnetic screening plate and the collection box need to be taken out, the sliding baffle can be pulled out, which is very convenient to use.

[0009] Furthermore, the first supporting chute, the second supporting chute, the third supporting chute, the fourth supporting chute, the fifth supporting chute and the inner side wall of the sub-screening box are an integrated structure.

[0010] Furthermore, the horizontal angle between the first supporting chute and the second supporting chute is between 10° and 15°; the left end of the first sub-screen plate is cooperatively connected with the first supporting chute, and the right end is cooperatively connected with the second supporting chute and the left end is higher than the right end. When the feed falls above the first sub-screen plate, it can rely on gravity to slide to the right and slide out from the upper discharge port, thereby achieving the purpose of automatically screening the feed.

[0011] Furthermore, the horizontal angle between the third supporting chute and the fourth supporting chute is between 10° and 15°; the left end of the second sub-screen plate is cooperatively connected with the third supporting chute, and the right end is cooperatively connected with the fourth supporting chute and the left end is higher than the right end. When the small feed falls above the first sub-screen plate, it can rely on gravity to slide to the right and slide out from the upper discharge port, thereby achieving the purpose of automatically screening the feed.

[0012] Furthermore, a first sub-screen plate body is provided in the middle of the first sub-screen plate, and first supporting sliding blocks are provided at the upper and lower ends of the first sub-screen plate body. A large leakage hole is provided on the first sub-screen plate body, and first blocks are provided at the upper ends of the first sub-screen plate body at the front and rear ends of the large leakage hole. During the design process of the first sub-screen plate, the left end portion is higher than the right end portion and can be connected with the first supporting chute and the second supporting chute. A large leakage hole is provided in the middle of the first sub-screen plate, and the feed can slide out from the large leakage hole during the sliding process, and the diameter of the large leakage hole is larger than the small leakage hole. By arranging the first block at the front and rear ends of the first sub-screen plate body, the first block can effectively prevent the feed from sliding out from the front and rear ends of the first sub-screen plate.

[0013] Furthermore, a second sub-screen body is arranged in the middle of the second sub-screen plate, and second supporting sliders are arranged at the upper and lower ends of the second sub-screen body. A small leakage hole is opened on the second sub-screen body, and second stoppers are arranged at the upper ends of the second sub-screen body at the front and rear ends of the small leakage hole.

[0014] Furthermore, the magnetic sieve plate includes a magnetic sieve plate body, a magnetic sieve rod is arranged in the middle of the magnetic sieve plate body, and fifth supporting sliders are arranged at the left and right ends of the magnetic sieve plate body; by arranging a magnetic sieve plate below the second sub-sieve plate, and arranging a magnetic sieve rod on the magnetic sieve plate, the falling small feed is mixed with iron powder, and the magnetic sieve plate can effectively absorb the iron powder impurities to make the collected feed cleaner.

[0015] Furthermore, a square card slot is provided at the upper middle end of the vibration device, an electronic display screen is provided at the front end of the square card slot, a control button is provided at the lower end of the electronic display screen, and a vibrator and a control module are provided inside the vibration device; by setting the vibration device, a square card slot is provided above the vibration device, the bottom of the screening box can be located in the square card slot and tightly attached to the inner wall of the square card slot to prevent the screening box from slipping out during the vibration process, and in addition, a vibrator is provided inside the vibration device, the vibrator is a commonly used vibrator on the market, and the frequency of the vibrator can be adjusted by the control button to improve the feed screening efficiency.

[0016] Furthermore, the control buttons, the electronic display screen and the vibrator are electrically connected to the control module respectively; in general, the utility model has the advantages of simple structure, saving space, and the collected feed can be cleaner by setting multiple screening plates.

[0017] Beneficial effect: The utility model is a square frame and does not need to connect multi-stage screening equipment together, which has the advantage of saving floor space. By arranging a supporting chute on the inner wall of the screening box, the horizontal angle between the first supporting chute and the second supporting chute is between 10° and 15°, and the horizontal angle between the third supporting chute and the fourth supporting chute is between 10° and 15°. The first screening plate is located in the screening box and is slidably connected to the first supporting chute and the second supporting chute. The second screening plate is located in the screening box and is slidably connected to the third supporting chute and the fourth supporting chute. The left ends of the first and second screening plates are higher than the right ends and have an angle of 10° to 15° to the horizontal. The feed enters from the feed hopper and falls on the upper left side of the first screening plate. Since the left end is higher than the right end, the feed slides from the left side to the right side. During the sliding process, small feed will be leaked from the large one. The holes fall to the second sub-screen plate, and the large feed slides out from the upper discharge port for separation under the action of gravity. After the small feed is adjusted to the second sub-screen plate, it will continue to slide to the right under the action of gravity. During the sliding process, even smaller feed will fall from the small leakage holes to the magnetic screen plate, and the small feed that has not fallen will slide out from the lower discharge port. A vibration device is provided at the lower end of the sub-screen box. The vibration device can be started by controlling the button and the vibration size can be adjusted to accelerate the sliding speed of the feed, thereby improving the separation efficiency. During the design process of the utility model, the left ends of the first sub-screen plate and the second sub-screen plate are higher than the right ends and the angle with the horizontal is between 10° and 15°. The most suitable angle is obtained through multiple experiments, which can effectively prevent the feed from sliding too fast and causing incomplete separation. The first sub-screen plate and the second sub-screen plate are both slidably connected and matched with the sub-screen box. During use, the appropriate sub-screen plate can be selected as needed and the sub-screen plate can be cleaned in time;

[0018] In addition, a magnetic sieve plate is arranged below the second sub-sieve plate, and a magnetic sieve rod is arranged on the magnetic sieve plate. When the falling small feed is mixed with iron powder, the magnetic sieve plate can effectively absorb the iron powder impurities, so that the collected feed can be cleaner. In addition, magnetic plates can be laid at the upper discharge port and the lower discharge port. When the feed slides out from the upper discharge port and the lower discharge port, the iron powder impurities can be effectively absorbed, so that the collected feed can be cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the screening box of the utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the screening box of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the first sub-screen plate of the utility model;

[0023] Figure 5It is a schematic diagram of the three-dimensional structure of the second sub-screen plate of the utility model;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the magnetic sieve plate of the utility model;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the vibration device of the utility model.

[0026] Figure numerals: 0, screening device body 1, screening box 10, screening box body 11, feed hopper 12, upper discharge port 13, lower discharge port 14, limit slot 15, support slide 150, first support slide 151, second support slide 152, third support slide 153, fourth support slide 154, fifth support slide 2, sliding baffle 20, pull ring 3, first screening plate 30, first block 31, first screening plate body 32, large leakage hole 33, first supporting slide block 4, second screening plate 40, second block 41, second screening plate body 42, small leakage hole 43, second supporting slide block 5, magnetic screening plate 50, magnetic screening plate body 51, magnetic screening rod 53, fifth supporting slide block 6, collecting box 7, vibration device 71, square slot 72, electronic display screen 73, control button. DETAILED DESCRIPTION

[0027] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] The specific implementation of the utility model is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the utility model provides a screening device for laying hen feed production, including a screening device body 0, a vibrating device 7 is arranged at the bottom of the screening device body 0, and is characterized in that: a screening box 1 is arranged at the upper middle end of the vibrating device 7, and support chutes 15 are arranged on the left and right inner walls of the screening box 1, and the left and right ends of the first screening plate 3, the second screening plate 4 and the magnetic screening plate 5 are located in the support chutes 15 and are slidably connected to the screening box 1, and the left ends of the first screening plate 3 and the second screening plate 4 are higher than the right ends, and the front side wall of the screening box 1 is provided with a sliding baffle 2, and the sliding baffle 2 is connected to the screening box 1 in a sliding connection manner, and the bottom of the screening box 1 is provided with a collecting box 6, and the collecting box 6 is connected to the screening box 1 in a sliding connection manner;

[0029] By arranging a supporting chute 15 on the inner wall of the sub-screen box 1, the horizontal angle between the first supporting chute 150 and the second supporting chute 151 is between 10° and 15°, and the horizontal angle between the third supporting chute 152 and the fourth supporting chute 153 is between 10° and 15°. The first sub-screen plate 3 is located in the sub-screen box 1 and is slidably connected to the first supporting chute 150 and the second supporting chute 151. The second sub-screen plate 4 is located in the sub-screen box 1 and is slidably connected to the third supporting chute 152 and the fourth supporting chute 153. The left ends of the first sub-screen plate 3 and the second sub-screen plate 4 are higher than the right ends and have an angle of 10° to 15° with the horizontal. The feed enters from the feed hopper 11 and falls on the upper left side of the first sub-screen plate 3. Since the left end is higher than the right end, the feed slides from the left side to the right side. During the sliding process, small feed will fall from the large leakage hole 32 to the second sub-screen plate 4, and the large The feed slides out from the upper discharge port 12 under the action of gravity for separation. After the small feed falls to the second sub-screen plate 4, it will continue to slide to the right under the action of gravity. During the sliding process, even smaller feed will fall from the small leakage hole 42 to the magnetic screen plate 5, and the small feed that has not fallen will slide out from the lower discharge port 13. A vibration device 7 is provided at the lower end of the sub-screen box 1. The vibration device 7 can be started by controlling the button 73 and the vibration size can be adjusted to accelerate the sliding speed of the feed, thereby improving the separation efficiency. During the design process of the utility model, the left end of the first sub-screen plate 3 and the second sub-screen plate 4 is higher than the right end and the angle with the horizontal is between 10° and 15°. The most suitable angle is obtained by multiple experiments, which can effectively prevent the feed from sliding too fast and causing incomplete separation. The first sub-screen plate 3 and the second sub-screen plate 4 are both slidably connected and cooperate with the sub-screen box 1. During use, the appropriate sub-screen plate can be selected as needed and the sub-screen plate can be cleaned in time;

[0030] In addition, by arranging a magnetic sieve plate 5 below the second sub-sieve plate 4, a magnetic sieve rod 51 is arranged on the magnetic sieve plate 5, and the falling small feed is mixed with iron powder. The magnetic sieve plate 5 can effectively absorb the iron powder impurities, so that the collected feed can be cleaner. In addition, magnetic plates can be laid at the upper discharge port 12 and the lower discharge port 13. When the feed slides out from the upper discharge port 12 and the lower discharge port 13, the iron powder impurities can be effectively absorbed, so that the collected feed can be cleaner.

[0031] like Figure 2 , Figure 3 As shown, a feed hopper 11 is provided at the upper left end of the top of the sub-screening box 1, a first supporting chute 150 is provided at the top of the left inner wall of the sub-screening box 1, a second supporting chute 151 is provided at the lower right end of the first supporting chute 150, a third supporting chute 152 is provided at the lower left end of the second supporting chute 151, a fourth supporting chute 153 is provided at the lower right end of the third supporting chute 152, a fifth supporting chute 154 is provided at the lower end of the fourth supporting chute, a limiting slot 14 is fixedly provided on the front side wall of the sub-screening box 1, an upper discharge port 12 and a lower discharge port 13 are provided above the second supporting chute 151 and the fourth supporting chute 153;

[0032] By arranging a supporting slot 15 on the inner side wall of the screening box 1, the horizontal angle between the first supporting slot 150 and the second supporting slot 151 is between 10° and 15°, and the horizontal angle between the third supporting slot 152 and the fourth supporting slot 153 is between 10° and 15°. The first screening plate 3 and the second screening plate 4 are slidably connected to the supporting slot 15 and the left end is higher than the right end. When the feed falls above the first screening plate 3 and the second screening plate 4, it can slide to the right side by gravity and slide out from the upper discharge port 12 and the lower discharge port 13, thereby achieving the purpose of automatically screening the feed. In addition, by arranging a limiting slot 14 on the front side wall of the screening box 1, the sliding baffle 2 is located in the limiting slot 14 and is slidably connected to the screening box 1. The sliding baffle 2 is a transparent structure. During use, the sliding baffle 2 can block the feed. At the same time, when the first screening plate 3, the second screening plate 4, the magnetic screening plate 5 and the collecting box 6 need to be taken out, the sliding baffle 2 can be pulled out, and the use process is very convenient.

[0033] like Figure 3 As shown, the first supporting chute 150 , the second supporting chute 151 , the third supporting chute 152 , the fourth supporting chute 153 , the fifth supporting chute 154 and the inner wall of the screening box 1 are an integrated structure.

[0034] like Figure 3 As shown, the horizontal angle between the first supporting chute 150 and the second supporting chute 151 is between 10° and 15°; the left end of the first sub-screen plate 3 is connected with the first supporting chute 150, and the right end is connected with the second supporting chute 151, and the left end is higher than the right end. When the feed falls above the first sub-screen plate 3, it can rely on gravity to slide to the right and slide out from the upper discharge port 12, thereby achieving the purpose of automatically screening the feed.

[0035] like Figure 3 As shown, the horizontal angle between the third supporting chute 152 and the fourth supporting chute 153 is between 10° and 15°; the left end of the second sub-screen plate 4 is connected with the third supporting chute 152, and the right end is connected with the fourth supporting chute 153, and the left end is higher than the right end. When the small feed falls above the first sub-screen plate 3, it can slide to the right by gravity and slide out from the upper discharge port 12, thereby achieving the purpose of automatically screening the feed.

[0036] like Figure 4As shown, a first sub-sieve plate body 31 is provided in the middle of the first sub-sieve plate 3, and first supporting sliders 30 are provided at the upper and lower ends of the first sub-sieve plate body 31. A large leakage hole 32 is opened on the first sub-sieve plate body 31, and first stoppers 30 are provided at the upper ends of the first sub-sieve plate body 31 at the front and rear ends of the large leakage hole 32; during the design process of the first sub-sieve plate 3, the left end portion is higher than the right end portion and can be connected with the first supporting chute 150 and the second supporting chute 151, and a large leakage hole 32 is opened in the middle of the first sub-sieve plate 3. During the sliding process, the feed can slide out from the large leakage hole 32 and the diameter of the large leakage hole 32 is larger than the small leakage hole 42. By arranging the first stoppers 30 at the front and rear ends of the first sub-sieve plate body 31, the first stoppers 30 can effectively prevent the feed from sliding out from the front and rear ends of the first sub-sieve plate 3.

[0037] like Figure 4 As shown, a second sub-screen plate body 41 is provided in the middle of the second sub-screen plate 4, second supporting sliders 43 are provided at the upper and lower ends of the second sub-screen plate body 41, a small leakage hole 42 is opened on the second sub-screen plate body 41, and second stoppers 40 are provided at the upper ends of the second sub-screen plate body 41 at the front and rear ends of the small leakage hole 42.

[0038] like Figure 6 As shown, the magnetic sieve plate 5 includes a magnetic sieve plate body 50, a magnetic sieve rod 51 is arranged in the middle of the magnetic sieve plate body 50, and a fifth supporting slider 53 is arranged at the left and right ends of the magnetic sieve plate body 50; by arranging the magnetic sieve plate 5 below the second sub-sieve plate 4, the magnetic sieve rod 51 is arranged on the magnetic sieve plate 5, and the falling small feed is mixed with iron powder, and the magnetic sieve plate 5 can effectively absorb the iron powder impurities to make the collected feed cleaner.

[0039] like Figure 7 As shown, a square card slot 71 is provided at the upper middle end of the vibration device 7, an electronic display screen 72 is provided at the front end of the square card slot 71, a control button 73 is provided at the lower end of the electronic display screen 72, and a vibrator and a control module are provided inside the vibration device 7; by setting the vibration device 7, a square card slot 71 is provided above the vibration device 7, the bottom of the screening box 1 can be located in the square card slot 71 and tightly attached to the inner wall of the square card slot 71 to prevent the screening box 1 from slipping out during the vibration process, and in addition, a vibrator is provided inside the vibration device 7, the vibrator is a commonly used vibrator on the market, and the frequency of the vibrator can be adjusted by the control button 73 to improve the feed screening efficiency.

[0040] like Figure 7 As shown, the control button 73, the electronic display screen 72 and the vibrator are electrically connected to the control module respectively.

[0041] When the utility model is implemented: firstly, the first supporting slider 33 provided at the left end of the first sub-screen plate 3 is located in the first supporting chute 150, the second supporting slider 33 provided at the right end of the first sub-screen plate 3 is placed in the second supporting chute 151, and the first sub-screen plate 3 is slidably connected with the sub-screen box 1, the second supporting slider 43 provided at the left end of the second sub-screen plate 4 is located in the third supporting chute 152, the second supporting slider 43 provided at the right end of the second sub-screen plate 4 is placed in the fourth supporting chute 153, and the second sub-screen plate 4 is connected with the sub-screen box 1 sliding connection, the fifth supporting slider 53 provided at the left and right ends of the magnetic sieve plate 5 is placed in the fifth supporting slider 154, and the collecting box 6 is placed under the magnetic sieve plate 5 and in the screening box 1, and then the sliding baffle 2 is placed in the limit card slot 14 by sliding, and the screening box 1 is placed in the square card slot 71 opened on the vibration device 7, and the vibration device 7 is started by the control button 73 and adjusted to a suitable vibration frequency, and the feed is poured from the feed hopper 11 into the screening box 1 and falls on the first screening plate 3, and the feed slides to the right under the action of gravity. The large feed falls from the large leakage hole 32 to the second sub-screen plate 4. The large feed continues to slide to the right under the action of gravity to slide out from the upper discharge port 12. A magnetic plate can be laid at the upper discharge port 12 to absorb the iron powder carried by it and make the feed cleaner. After the small feed falls to the second sub-screen plate 4, it slides to the right under the action of gravity. At the same time, the smaller feed falls from the small leakage hole 42 to the magnetic screen plate 5. The feed that has not fallen slides out from the lower discharge port 13 under gravity. A magnetic plate can be laid at the lower discharge port 13 to absorb the iron powder carried by it and make the feed cleaner. When the small feed passes through the magnetic screen plate 5, due to the A magnetic sieve rod 51 is provided. The magnetic sieve rod 51 has a certain magnetism and can absorb the doped iron powder. Finally, the small feed falls into the collecting box 6. Since the sliding baffle 2 is made of transparent material, the amount of feed in the collecting box 6 can be observed at any time. When cleaning is needed, the sliding baffle 2 can be pulled out through the pull ring 20 and the collecting box 6 can be pulled out for cleaning. During the cleaning process, the first sub-sieve plate 3, the second sub-sieve plate 4 and the magnetic sieve plate 5 can be cleaned. In general, the utility model has the advantages of simple structure, saving space, and making the collected feed cleaner by setting multiple sub-sieve plates.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A screening device for laying hen feed production, comprising a screening device body (0), a vibrating device (7) being arranged at the bottom of the screening device body (0), characterized in that: A screening box (1) is provided at the upper middle end of the vibration device (7), and support slide grooves (15) are provided on the left and right inner walls of the screening box (1). The left and right ends of the first screening plate (3), the second screening plate (4) and the magnetic screening plate (5) are located in the support slide grooves (15) and are slidably connected to the screening box (1). The left ends of the first screening plate (3) and the second screening plate (4) are higher than the right ends. A sliding baffle (2) is provided on the front side wall of the screening box (1), and the sliding baffle (2) is connected to the screening box (1) by means of a sliding connection. A collecting box (6) is provided at the bottom of the screening box (1), and the collecting box (6) is connected to the screening box (1) by means of a sliding connection.

2. A screening device for laying hen feed production according to claim 1, characterized in that: A feed hopper (11) is provided at the upper left end of the top of the screening box (1), a first supporting slot (150) is provided at the top of the left inner wall of the screening box (1), a second supporting slot (151) is provided at the lower right end of the first supporting slot (150), a third supporting slot (152) is provided at the lower left end of the second supporting slot (151), a fourth supporting slot (153) is provided at the lower right end of the third supporting slot (152), and a fifth supporting slot (154) is provided at the lower end of the fourth supporting slot, a limiting slot (14) is fixedly provided on the front side wall of the screening box (1), and an upper discharge port (12) and a lower discharge port (13) are provided above the second supporting slot (151) and the fourth supporting slot (153).

3. A screening device for laying hen feed production according to claim 2, characterized in that: The first supporting chute (150), the second supporting chute (151), the third supporting chute (152), the fourth supporting chute (153), and the fifth supporting chute (154) are an integrated structure with the inner side wall of the screening box (1).

4. A screening device for laying hen feed production according to claim 3, characterized in that: The horizontal angle between the first supporting slide groove (150) and the second supporting slide groove (151) is between 10° and 15°.

5. A screening device for laying hen feed production according to claim 3, characterized in that: The horizontal angle between the third supporting slide groove (152) and the fourth supporting slide groove (153) is between 10° and 15°.

6. A screening device for laying hen feed production according to claim 1, characterized in that: A first sub-sieve plate body (31) is arranged in the middle of the first sub-sieve plate (3), and first supporting sliding blocks (33) are arranged at the upper and lower ends of the first sub-sieve plate body (31). A large leakage hole (32) is opened on the first sub-sieve plate body (31), and first stoppers (30) are arranged at the upper ends of the first sub-sieve plate body (31) at the front and rear ends of the large leakage hole (32).

7. A screening device for laying hen feed production according to claim 1, characterized in that: A second sub-screen plate body (41) is arranged in the middle of the second sub-screen plate (4), and second supporting sliding blocks (43) are arranged at the upper and lower ends of the second sub-screen plate body (41). A small leakage hole (42) is opened on the second sub-screen plate body (41), and second stoppers (40) are arranged at the upper ends of the second sub-screen plate body (41) at the front and rear ends of the small leakage hole (42).

8. A screening device for laying hen feed production according to claim 1, characterized in that: The magnetic sieve plate (5) comprises a magnetic sieve plate body (50), a magnetic sieve rod (51) is arranged in the middle of the magnetic sieve plate body (50), and fifth supporting sliding blocks (53) are arranged at the left and right ends of the magnetic sieve plate body (50).

9. A screening device for laying hen feed production according to claim 1, characterized in that: A square card slot (71) is provided at the upper middle end of the vibration device (7), an electronic display screen (72) is provided at the front end of the square card slot (71), a control button (73) is provided at the lower end of the electronic display screen (72), and a vibrator and a control module are provided inside the vibration device (7).

10. A screening device for laying hen feed production according to claim 9, characterized in that: The control button (73), the electronic display screen (72) and the vibrator are electrically connected to the control module respectively.

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