Corn screening device

Abstract

The utility model discloses a corn screening device which comprises a second screening assembly, a feeding port, a first screening assembly, a mounting frame, a discharging port and a vibration assembly. The vibration assembly is mounted at the lower end of the mounting frame; the first screening assembly is mounted at the upper end; the feeding hole is formed in the left end; the second screening assembly is arranged below the first screening assembly and installed on the top face of the vibration assembly. One end of the feeding port extends outwards, and the other end of the feeding port is connected with the first screening assembly. And a discharging opening is formed in the right end of the second screening assembly. Two-stage screening can be carried out on corn, impurities with the diameter larger than that of corn kernels and impurities with the diameter smaller than that of corn kernels are removed respectively, and screening efficiency and precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural product production technical field, especially a kind of corn screening device. BACKGROUND

[0002] In the corn processing process, screening is carried out before bagging. This is because the corn without screening is often mixed with various impurities, which will affect the quality of corn and subsequent processing. The traditional corn screening method usually uses a single screening assembly. This method has many shortcomings in practical application. On the one hand, the single screening assembly cannot completely remove impurities of different sizes, and cannot guarantee the purity of corn. The commonly used screening and bagging machine is a screening machine that separates impurities from corn using a drum screening device. After the material is fed into the screen cylinder from the feed inlet, the material and the screen cylinder move together around the inner surface of the cylinder. Under the action of centrifugal force, the material smaller than the screen hole, which is the corn we want, passes through the screen hole and enters the large hopper. The unwanted impurities larger than the screen hole are directly discharged into the small cart outside. However, this traditional screening and bagging machine still has some problems in actual use, such as incomplete separation of impurities, especially for impurities similar in size to corn kernels. SUMMARY

[0003] The utility model aims at providing a corn screening device, which can perform two-stage screening on corn, remove impurities larger and smaller than corn kernels respectively, and improve the efficiency and accuracy of screening. The specific technical solution is as follows:

[0004] A corn screening device includes a second screening assembly, a feed inlet, a first screening assembly, a mounting bracket, a discharge outlet, and a vibration assembly.

[0005] The lower end of the mounting bracket is installed with the vibration assembly, the upper end is installed with the first screening assembly, and the left end is installed with the feed inlet. The second screening assembly is arranged below the first screening assembly and installed on the top surface of the vibration assembly. One end of the feed inlet extends outward, and the other end is connected with the first screening assembly. The right end of the second screening assembly is installed with the discharge outlet.

[0006] Preferably, the first screening assembly includes a screening shaft, a screening cylinder, a first motor, and a motor mounting base. The left end of the screening cylinder is open, the right end is closed, and the cylinder body has through holes. The motor mounting base is arranged on the right side of the screening cylinder, and the first motor is installed on the top surface of the motor mounting base. The middle part of the screening cylinder is installed with the screening shaft, and one end of the screening shaft is connected with the motor.

[0007] Preferably, the second screening assembly comprises a conveying channel and a filter screen; the conveying channel is arranged below the first screening assembly; the filter screen is arranged in the middle of the conveying channel; and the discharge port is arranged at the right end of the conveying channel.

[0008] Preferably, the vibrating assembly comprises a first connecting plate, a second connecting plate, a rotating connecting rod, a fixing frame, a cam connecting rod, a cam and a second motor.

[0009] The first connecting plate and the second connecting plate are arranged horizontally, and the second connecting plate is arranged above the first connecting plate; the rotating connecting rod is arranged between the first connecting plate and the second connecting plate; the rotating connecting rod is provided with a rotating shaft arranged in the middle, and the upper end of the rotating shaft is hingedly connected to the second connecting plate, and the lower end of the rotating shaft is hingedly connected to the first connecting plate; one end of the rotating shaft is connected to the rotating connecting rod, and the other end of the rotating shaft is connected to the fixing frame; the cam and the second motor are arranged below the first connecting plate; the cam is connected to the second motor; one end of the cam connecting rod is connected to the first connecting plate, and the other end of the cam connecting rod is connected to the cam.

[0010] Preferably, the screening cylinder and the feeding port are arranged obliquely, and the left end of the screening cylinder and the feeding port is higher than the right end.

[0011] Preferably, the conveying channel is arranged obliquely, and the left end of the conveying channel is higher than the right end.

[0012] Preferably, the vibrating assembly further comprises a protective cover; and the protective cover is arranged outside the first screening assembly.

[0013] Preferably, the discharge port is a feeding plate arranged obliquely and arranged at the right side of the conveying channel; the left end of the feeding plate is connected to the filter screen, and the right end of the feeding plate extends outward.

[0014] Compared with the prior art, the vibrating screening device has the following beneficial effects:

[0015] The utility model discloses a first screening assembly is set up to the corn first screening, effectively removes the impurity of the diameter greater than the corn kernel, the second screening assembly is driven under the vibration subassembly, and the corn that passes through the first screening is screened secondly, removes the impurity of the diameter less than the corn kernel, and the purity of corn is further improved. The inlet port conveniently guides the corn to be screened into the first screening assembly, and one end thereof is outwardly extended to facilitate receiving the corn, and the other end is connected with the first screening assembly to ensure that the corn kernel is accurately screened, and the high-quality corn that completes twice screening is discharged from the device in time through the discharge port, facilitating subsequent processing and treatment. Through the first screening assembly and the second screening assembly, the corn can be screened in two stages, the impurities with the diameter greater than the corn kernel and the diameter less than the corn kernel are removed respectively, and the screening efficiency and precision are improved. Compared with the traditional single screening mode, the two-stage screening can separate the impurities from the corn kernel more quickly, reduce the number of repeated screening, and save time and labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0017] Figure 1 is the structural schematic diagram of the utility model.

[0018] Figure 2 is the structural schematic diagram of the first screening assembly of the utility model.

[0019] Figure 3 is the structural schematic diagram of the second screening assembly of the utility model.

[0020] Figure 4 is the structural schematic diagram of the rotary connecting rod of the utility model.

[0021] Main drawing mark explanation:

[0022] 1-second screening assembly, 2-inlet port, 3-first screening assembly, 4-mounting frame, 5-discharge port, 6-vibration subassembly, 7-screening shaft, 8-screening cylinder, 9-first motor, 10-motor mounting base, 11-first connecting plate, 12-conveying channel, 13-filter screen, 14-second connecting plate, 15-rotary connecting rod, 16-fixing frame, 17-cam connecting rod, 18-cam, 19-second motor, 20-rotating shaft, 21-protective cover. DETAILED DESCRIPTION

[0023] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0024] In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the present application.

[0027] Embodiment 1

[0028] A corn screening device, as shown in the figure, comprises a second screening assembly, a feed inlet, a first screening assembly, a mounting frame, a discharge outlet and a vibrating assembly.

[0029] The lower end of the mounting frame is provided with a vibration assembly, the upper end is provided with a first screening assembly, and the left end is provided with a feeding port; the second screening assembly is arranged below the first screening assembly and is arranged on the top surface of the vibration assembly; one end of the feeding port extends outward, and the other end is connected with the first screening assembly; the right end of the second screening assembly is provided with a discharging port.

[0030] Next, the working principle of this embodiment is described in detail to make the person skilled in the art understand the utility model better:

[0031] The first screening assembly is used for screening the corn for the first time, and the impurities with a diameter larger than that of the corn kernel are removed; the second screening assembly is used for screening the corn for the second time, and the impurities with a diameter smaller than that of the corn kernel are removed. In operation, the corn kernels to be screened are put into the first screening assembly from the feeding port. The first screening assembly screens the corn for the first time, and the screened corn falls from the first screening assembly into the second screening assembly; the vibration assembly drives the second screening assembly, and the second screening assembly screens the corn for the second time, and the corn kernels screened for the second time leave the device from the discharging port.

[0032] Embodiment 2

[0033] The difference between this embodiment and embodiment 1 is that the first screening assembly comprises a screening cylinder, a screening shaft, a first motor and a motor mounting base; the left end of the screening cylinder is open, the right end is closed, and a plurality of through holes are formed in the cylinder body; the motor mounting base is arranged on the right side of the screening cylinder, and the first motor is arranged on the top surface of the motor mounting base; the middle part of the screening cylinder is provided with the screening shaft, and one end of the screening shaft is connected with the motor.

[0034] The feeding port is a U-shaped plate arranged obliquely, one end of the U-shaped plate extends into the left end of the screening cylinder, and the other end extends outward. The cylinder body of the screening cylinder is uniformly provided with a plurality of through holes, and the diameter of the through holes is larger than that of the corn kernel. The first motor is arranged on the motor mounting base, and the motor drives the screening cylinder to rotate through the screening shaft. The corn kernels to be screened enter the left end opening screening cylinder from the obliquely arranged U-shaped feeding port, the impurities with a diameter larger than that of the corn kernel are left outside the screening cylinder or discharged through the through holes in the cylinder body, and the screened corn falls from the right end of the screening cylinder to the second screening assembly.

[0035] Embodiment 3

[0036] The difference between this embodiment and embodiment 2 is that the second screening assembly comprises a conveying channel and a filter screen; the conveying channel is arranged below the first screening assembly; the filter screen is arranged in the middle part of the conveying channel; and the discharging port is arranged at the right end of the conveying channel.

[0037] The filter screen is installed in the middle of the conveying channel, which divides the conveying channel into two parts. The corn kernels fall on the filter screen when falling. The diameter of the filter hole of the filter screen is smaller than the diameter of the corn kernel. The corn falling from the first screening assembly enters the conveying channel and falls on the filter screen. The diameter of the filter hole of the filter screen is smaller than the diameter of the corn kernel. The impurities smaller than the diameter of the corn kernel fall through the filter screen, and the corn kernels remain above the filter screen. Finally, the corn kernels are discharged from the discharge port at the right end of the conveying channel.

[0038] The working principle of this embodiment is the same as that of embodiment 1.

[0039] Embodiment 4

[0040] The difference between this embodiment and embodiment 3 is that the vibration assembly comprises a first connecting plate, a second connecting plate, a rotating connecting rod, a fixed frame, a cam connecting rod, a cam and a second motor.

[0041] The first connecting plate and the second connecting plate are respectively arranged horizontally, and the second connecting plate is arranged above the first connecting plate. The rotating connecting rod is arranged between the first connecting plate and the second connecting plate. The rotating connecting rod is provided with a rotating shaft in the middle, and the upper end is hinged to the second connecting plate and the lower end is hinged to the first connecting plate. One end of the rotating shaft is connected with the rotating connecting rod, and the other end is connected with the fixed frame. The cam and the second motor are installed below the first connecting plate. The cam is connected with the second motor. One end of the cam connecting rod is connected with the first connecting plate, and the other end is connected with the cam.

[0042] A belt transmission mechanism is installed between the motor and the cam. One end of the belt transmission mechanism is connected with the output shaft of the motor, and the other end is connected with the cam through a connecting shaft. The motor is connected with the cam through the belt transmission mechanism. When the motor starts, the cam rotates, the cam connecting rod moves, the cam connecting rod drives the first connecting plate to move horizontally, and a crank slider structure is formed. When the first connecting plate moves horizontally, the rotating connecting rod rotates slightly, the rotating connecting rod drives the second connecting plate to move horizontally, and the second screening assembly installed on the top surface of the second connecting plate moves, thereby screening the corn kernels.

[0043] The working principle of this embodiment is the same as that of embodiment 1.

[0044] Embodiment 5

[0045] The difference between this embodiment and embodiment 4 is that the screening cylinder and the inlet are inclinedly arranged, and the left end of the screening cylinder and the inlet is higher than the right end. The screening cylinder and the inlet are inclinedly arranged, and the left end is higher than the right end. The corn kernels enter the screening cylinder from the inlet under the action of gravity to perform the first screening, thereby reducing the feeding resistance.

[0046] The working principle of this embodiment is the same as that of embodiment 1.

[0047] Embodiment 6

[0048] The difference between this embodiment and embodiment 5 is that the conveying channel is obliquely arranged, with the left end being higher than the right end. Under the action of gravity and the horizontal movement of the conveying channel driven by the vibration assembly, the screened corn kernels move along the conveying channel to the discharge port, and are screened again by the filter screen in the process. The oblique arrangement enables the corn kernels to be smoothly discharged under the action of gravity, improving the discharge efficiency.

[0049] The working principle of this embodiment is the same as that of embodiment 1.

[0050] Embodiment 7

[0051] The difference between this embodiment and embodiment 6 is that it further comprises a protective cover, and the first screening assembly is externally provided with the protective cover. This prevents the corn kernels from flying out of the side of the screening cylinder during rotation of the screening cylinder and falling outside the second screening assembly.

[0052] The working principle of this embodiment is the same as that of embodiment 1.

[0053] Embodiment 8

[0054] The difference between this embodiment and embodiment 7 is that the discharge port is a feeding plate obliquely arranged on the right side of the conveying channel, and the left end of the feeding plate is connected with the filter screen and the right end extends outward. The corn kernels moving along the filter screen leave the device through the obliquely arranged feeding plate. The obliquely arranged feeding plate enables the corn kernels to be smoothly discharged, improving the discharge efficiency, and the left end of the feeding plate being connected with the filter screen ensures smooth transition of the corn kernels.

[0055] The working principle of this embodiment is the same as that of embodiment 1.

[0056] The first screening assembly is arranged to screen the corn for the first time, effectively removing impurities with a diameter greater than that of the corn kernels. The second screening assembly is driven by the vibration assembly to screen the corn screened for the first time for the second time, removing impurities with a diameter less than that of the corn kernels, and further improving the purity of the corn. The inlet port facilitates smooth introduction of the corn to be screened into the first screening assembly, with one end extending outward to facilitate receiving of the corn and the other end being connected with the first screening assembly to ensure accurate screening of the corn kernels. The discharge port timely discharges the high-quality corn screened twice from the device, facilitating subsequent processing and handling. In summary, the first screening assembly and the second screening assembly are arranged to screen the corn in two stages, removing impurities with a diameter greater than that of the corn kernels and impurities with a diameter less than that of the corn kernels, respectively, improving the efficiency and accuracy of screening. Compared with the traditional single screening method, this two-stage screening can more quickly separate the impurities from the corn kernels, reduce the number of repeated screenings, and save time and labor costs.

[0057] The foregoing description of the specific exemplary embodiments of the present application is for illustrative purposes only and is not intended to limit the application to the precise forms described, and as such many modifications, equivalents, and variations will be apparent, of which the generic principles of the present application, as set forth in the preceding description, can be adapted to specific situations. Although the present application has been described in conjunction with the specific embodiments thereof, it is to be understood that no limitation of the scope of the application is intended thereby. Rather, applications intended to cover any adaptations or variations of the application described herein accompanied with such departures from the prescription set forth that come within the generic principles of the application, and that do not depart from the spirit and scope of the application.

Claims

1. A corn screening apparatus, characterized by, The second screening assembly, the inlet, the first screening assembly, the mounting frame, the outlet and the vibration assembly are included. The lower end of the mounting frame is provided with the vibration assembly, the upper end is provided with the first screening assembly, and the left end is provided with the inlet.

2. A corn sizing device according to claim 1, wherein, The first screening assembly includes a screening shaft, a screening cylinder, a first motor and a motor mounting base.

3. A corn sizing device according to claim 1, wherein, The second screening assembly includes a conveying channel and a filter screen.

4. The corn sizing apparatus of claim 1, wherein, The vibration assembly includes a first connecting plate, a second connecting plate, a rotating connecting rod, a fixing frame, a cam connecting rod, a cam and a second motor. The first connecting plate and the second connecting plate are horizontally arranged, and the second connecting plate is arranged above the first connecting plate.

5. A corn sizing device according to claim 2, wherein, The screening cylinder and the inlet are arranged in an inclined manner, and the left end of the screening cylinder and the inlet is higher than the right end.

6. A corn sizing device according to claim 3, wherein, The conveying channel is arranged in an inclined manner, and the left end of the conveying channel is higher than the right end.

7. A corn sizing device according to claim 1 wherein, The device further includes a protective cover.

8. A corn sizing device according to claim 3, wherein, The outlet is a feeding plate arranged in an inclined manner and arranged on the right side of the conveying channel. The left end of the feeding plate is connected with the filter screen, and the right end extends outward.

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