Grain screening mechanism for feed production

Abstract

The utility model relates to the technical field of feed production, in particular to a grain screening mechanism for feed production, which comprises a base, a first support, a second support and a multi-stage screening mesh plate, the first support and the second support are vertically mounted on two opposite sides of the base respectively, and the multi-stage screening mesh plate is positioned above the base and is obliquely arranged; the lower side of the multi-stage screening mesh plate is hinged to the top of the first support, the higher side of the multi-stage screening mesh plate is movably connected to the top of the second support through an elastic supporting part, a vibration unit is arranged at the top of the multi-stage screening mesh plate, and the multi-stage screening mesh plate forms a plurality of screening areas with the hole diameters gradually increasing from top to bottom. A fixing frame is arranged between the first support and the second support, a plurality of collecting hoppers are arranged on the fixing frame, and a plurality of grain output units are further arranged on the base. The grain screening mechanism for feed production is convenient to clean, simple in overall structure, stable in operation and more convenient to operate and use.

Description

Technical Field

[0001] This application relates to the field of feed production technology, and in particular to a grain screening mechanism for feed production. Background Technology

[0002] Feed is a general term for the food consumed by all domesticated animals. In a narrower sense, feed mainly refers to the food consumed by animals raised in agriculture or animal husbandry. Feed includes more than ten kinds of feed ingredients, such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meals, whey powder, oils, meat and bone meal, grains, and feed additives. Grains cover a wide range, including rice, wheat, millet, soybeans, and other miscellaneous grains. Cereals mainly consist of plant seeds and fruits. In the early stages of feed production, during the processing of grains, in order to ensure the uniformity of grain particle size and the quality of the grains, it is usually necessary to grade and screen the grain particles. Screening uses a perforated sieve to separate the mixture of materials with different particle sizes into various particle size grades.

[0003] A search of Chinese Patent Application No. 201711294630.4 reveals a screening device for grading grain particles, comprising a screening chamber with a feed inlet installed at one end of the top of the screening chamber. Inside the screening chamber, a screening mesh and a guide plate are fixedly installed. The screening mesh includes a first screening mesh and a second screening mesh. The first screening mesh is installed on top of the second screening mesh, and the guide plate is installed at the bottom of the screening chamber. The guide plate is inclined. Both the first and second screening meshes are inclined, with their inclination angles relative to each other. Both ends of the first and second screening meshes are slidably connected to slide rails on the inner wall of the screening chamber via movable mounting seats. A first discharge port, a second discharge port, and a third discharge port are respectively installed at the lower ends of the first screening mesh, the second screening mesh, and the guide plate.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and require improvement:

[0005] Common grain grading and screening devices have a relatively complex structure and high manufacturing and maintenance costs. In particular, the screening screen is located inside the screening chamber, making cleaning difficult when it becomes clogged, and the operation is not very convenient. Utility Model Content

[0006] This application provides a grain screening mechanism for feed production to improve the following technical problems:

[0007] Common grain grading and screening devices have a relatively complex structure and high manufacturing and maintenance costs. In particular, the screening screen is located inside the screening chamber, making cleaning difficult when it becomes clogged, and the operation is not very convenient.

[0008] This application provides a grain screening mechanism for feed production, which adopts the following technical solution:

[0009] A grain screening mechanism for feed production includes a base, a first support, a second support, and a multi-stage screening screen. The first and second supports are vertically installed on opposite sides of the base. The multi-stage screening screen is located above the base and is arranged at an angle. The lower side of the multi-stage screening screen is hinged to the top of the first support, and the higher side of the multi-stage screening screen is movably connected to the top of the second support via an elastic support. A vibration unit is provided on the top of the multi-stage screening screen. The multi-stage screening screen forms multiple screening areas with progressively larger apertures from top to bottom. A fixing frame is provided between the first and second supports, and multiple collection hoppers are provided on the fixing frame. Multiple grain output units are also provided on the base. The grain output units, collection hoppers, and screening areas are arranged in a one-to-one correspondence. The collection hoppers are located below the corresponding screening areas, and the grain output units are located below the corresponding collection hoppers.

[0010] In one feasible technical solution of this application, side baffles are provided on both sides of the multi-stage screening plate, and bottom baffles are provided at the bottom of the multi-stage screening plate. The multi-stage screening plate includes multiple rectangular unit plates, with the top rectangular unit plate having the smallest aperture and the bottom rectangular unit plate having the largest aperture.

[0011] In one feasible technical solution of this application, a plurality of rectangular unit plates are formed by punching holes in a stainless steel plate, and the number of rectangular unit plates is between 3 and 6.

[0012] In one feasible technical solution of this application, the vibration unit includes a horizontally arranged vibration plate and multiple sets of synchronously operating vibration motors. The vibration plate is fixedly connected to the top of the multi-stage screening plate, and the multiple sets of vibration motors are installed at intervals on the upper surface of the vibration plate.

[0013] In one feasible technical solution of this application, the elastic support portion has multiple sets arranged vertically at intervals. The elastic support portion includes an upper column, a lower column and a spring. The upper column is fixed to the lower surface of the vibration plate, the lower column is fixed to the top of the second bracket, the upper column is inserted into the top of the spring, the lower column is inserted into the bottom of the spring, and the spring is sandwiched between the vibration plate and the top of the second bracket.

[0014] In one feasible technical solution of this application, a hydraulic jack is provided on the top of the first support, and the top of the output shaft of the hydraulic jack is hinged to the bottom of the multi-stage screening plate. The hydraulic jack is used to adjust the height of the multi-stage screening plate.

[0015] In one feasible technical solution of this application, the fixing frame includes two crossbeams fixed to both sides of the hopper, and multiple diagonal bracing rods are provided between the crossbeams and the outer side of the hopper.

[0016] In one feasible technical solution of this application, the grain output unit is a belt conveyor.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] As the grain gradually slides down from the top of the multi-stage screening plate, the vibration unit drives the multi-stage screening plate to vibrate at high frequency. Grain of suitable particle size will gradually fall from the holes of the multi-stage screening plate into the corresponding collection hopper, and then be automatically conveyed out by the corresponding grain output unit, achieving automatic particle grading. The multi-stage screening plate is located at the bottom of the equipment and has an open design, which makes it easy for staff to clean when the multi-stage screening plate is blocked. Moreover, the overall structure is relatively simple, the operation is stable, the manufacturing cost and the later maintenance cost are relatively low, and the operation and use are more convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a grain screening mechanism for feed production according to an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the structure of the multi-stage screening screen and the vibration unit in the embodiments of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base;

[0024] 2. First support frame; 21. Hydraulic jack;

[0025] 3. Second support;

[0026] 4. Multi-stage screening plate; 41. Side baffle; 42. Bottom baffle; 43. Rectangular unit plate;

[0027] 5. Elastic support section; 51. Upper column; 52. Lower column; 53. Spring;

[0028] 6. Vibration unit; 61. Vibration plate; 62. Vibration motor;

[0029] 7. Fixing frame; 71. Crossbeam; 72. Diagonal brace;

[0030] 8. Material collection hopper;

[0031] 9. Grain output unit. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0037] This application discloses a grain screening mechanism for feed production. (Refer to...) Figure 1-2The feed production grain screening mechanism includes a base 1, a first support 2, a second support 3, and a multi-stage screening screen 4. The first support 2 and the second support 3 are vertically installed on opposite sides of the base 1. The multi-stage screening screen 4 is located above the base 1 and is arranged at an angle. The lower side of the multi-stage screening screen 4 is hinged to the top of the first support 2, and the higher side of the multi-stage screening screen 4 is movably connected to the top of the second support 3 through an elastic support 5. A vibration unit 6 is provided on the top of the multi-stage screening screen 4. The multi-stage screening screen 4 forms multiple screening areas with progressively larger apertures from top to bottom. A fixing frame 7 is provided between the first support 2 and the second support 3. Multiple collection hoppers 8 are provided on the fixing frame 7. Multiple grain output units 9 are also provided on the base 1. The grain output units 9, collection hoppers 8, and screening areas are arranged in a one-to-one correspondence. The collection hoppers 8 are located below the corresponding screening areas, and the grain output units 9 are located below the corresponding collection hoppers 8. The grain output units 9 are belt conveyors.

[0038] In this embodiment, side baffles 41 are provided on both sides of the multi-stage screening plate 4, and bottom baffles 42 are provided at the bottom of the multi-stage screening plate 4. The multi-stage screening plate 4 includes multiple rectangular unit plates 43. The rectangular unit plate 43 located at the top has the smallest aperture, and the rectangular unit plate 43 located at the bottom has the largest aperture. The multiple rectangular unit plates 43 are formed by punching holes in a stainless steel plate. The number of rectangular unit plates 43 is between 3 and 6 (preferably 4 rectangular unit plates 43).

[0039] The multi-stage screening screen plate 4 designed above has a simple and sturdy structure, is not easy to rust, has a long service life, and the grain is not easy to fall from the side and bottom during the screening process.

[0040] In this embodiment, the vibration unit 6 includes a horizontally arranged vibration plate 61 and multiple sets of synchronously operating vibration motors 62. The vibration plate 61 is fixedly connected to the top of the multi-stage sieve plate 4, and the multiple sets of vibration motors 62 are installed at intervals on the upper surface of the vibration plate 61.

[0041] The vibration unit 6 designed above has a simple structure, is securely installed, operates stably, and is easy to control.

[0042] In this embodiment, the elastic support 5 has multiple sets arranged vertically at intervals. The elastic support 5 includes an upper column 51, a lower column 52 and a spring 53. The upper column 51 is fixed to the lower surface of the vibration plate 61, the lower column 52 is fixed to the top of the second bracket 3, the upper column 51 is inserted into the top of the spring 53, the lower column 52 is inserted into the bottom of the spring 53, and the spring 53 is sandwiched between the top of the vibration plate 61 and the second bracket 3.

[0043] The elastic support 5 designed above has a simple structure, is stably installed, and has high flexibility. It can cooperate with the shaking of the multi-stage screening plate 4 and is not prone to loosening or damage.

[0044] In this embodiment, in order to adapt to various application environments, a hydraulic jack 21 is provided on the top of the first support 2. The top of the output shaft of the hydraulic jack 21 is hinged to the bottom of the multi-stage screening plate 4. The hydraulic jack 21 is used to adjust the height of the multi-stage screening plate 4 for maintenance or cleaning.

[0045] In this embodiment, in order to make the hopper 8 more stable and less prone to loosening or shaking, the fixing frame 7 includes two crossbeams 71 fixed to both sides of the hopper 8, and multiple diagonal bracing rods 72 are provided between the crossbeams 71 and the outer side of the hopper 8.

[0046] The beneficial technical effects of the grain screening mechanism for feed production according to the embodiments of this application are roughly as follows:

[0047] As the grain gradually slides down from the top of the multi-stage screening plate 4, the vibration unit 6 drives the multi-stage screening plate 4 to vibrate at high frequency. Grain of suitable particle size will gradually fall from the holes of the multi-stage screening plate 4 into the corresponding collection hopper 8, and then be automatically conveyed out through the corresponding grain output unit 9, achieving automatic particle grading. The multi-stage screening plate 4 is located at the bottom of the equipment and has an open design, making it easy for staff to clean when it becomes clogged. Moreover, the overall structure is relatively simple, the operation is stable, the manufacturing cost and subsequent maintenance cost are relatively low, and the operation is more convenient.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grain screening mechanism for feed production, characterized in that, The system includes a base (1), a first support (2), a second support (3), and a multi-stage sieve plate (4). The first support (2) and the second support (3) are vertically installed on opposite sides of the base (1). The multi-stage sieve plate (4) is located above the base (1) and is arranged at an angle. The lower side of the multi-stage sieve plate (4) is hinged to the top of the first support (2), and the higher side of the multi-stage sieve plate (4) is movably connected to the top of the second support (3) through an elastic support (5). A vibration damper is provided on the top of the multi-stage sieve plate (4). Unit (6), the multi-stage screening plate (4) forms multiple screening areas with gradually increasing apertures from top to bottom, a fixed frame (7) is provided between the first support (2) and the second support (3), multiple collection hoppers (8) are provided on the fixed frame (7), and multiple grain output units (9) are also provided on the base (1). The grain output units (9), the collection hoppers (8) and the screening areas are arranged in a one-to-one correspondence. The collection hoppers (8) are located below the corresponding screening areas, and the grain output units (9) are located below the corresponding collection hoppers (8).

2. The grain screening mechanism for feed production according to claim 1, characterized in that, The multi-stage sieve plate (4) is provided with side baffles (41) on both sides and a bottom baffle (42) at the bottom. The multi-stage sieve plate (4) includes multiple rectangular unit plates (43), with the top rectangular unit plate (43) having the smallest aperture and the bottom rectangular unit plate (43) having the largest aperture.

3. The grain screening mechanism for feed production according to claim 2, characterized in that, Multiple rectangular unit plates (43) are formed by punching holes in a single stainless steel plate, and the number of rectangular unit plates (43) is between 3 and 6.

4. The grain screening mechanism for feed production according to claim 1, characterized in that, The vibration unit (6) includes a horizontally arranged vibration plate (61) and multiple sets of synchronously operating vibration motors (62). The vibration plate (61) is fixedly connected to the top of the multi-stage sieve plate (4), and the multiple sets of vibration motors (62) are installed at intervals on the upper surface of the vibration plate (61).

5. The grain screening mechanism for feed production according to claim 4, characterized in that, The elastic support part (5) has multiple sets arranged vertically at intervals. The elastic support part (5) includes an upper column (51), a lower column (52) and a spring (53). The upper column (51) is fixed to the lower surface of the vibrating plate (61), the lower column (52) is fixed to the top of the second bracket (3), the upper column (51) is inserted into the top of the spring (53), the lower column (52) is inserted into the bottom of the spring (53), and the spring (53) is sandwiched between the vibrating plate (61) and the top of the second bracket (3).

6. The grain screening mechanism for feed production according to claim 1, characterized in that, A hydraulic jack (21) is provided on the top of the first support (2). The top of the output shaft of the hydraulic jack (21) is hinged to the bottom of the multi-stage screening plate (4). The hydraulic jack (21) is used to adjust the height of the multi-stage screening plate (4).

7. The grain screening mechanism for feed production according to claim 1, characterized in that, The fixing frame (7) includes two crossbeams (71) fixed to both sides of the hopper (8), and multiple diagonal braces (72) are provided between the crossbeams (71) and the outer side of the hopper (8).

8. The grain screening mechanism for feed production according to claim 1, characterized in that, The grain output unit (9) is a belt conveyor.

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