Corn threshing and screening device

Abstract

The utility model discloses a corn threshing and screening device which comprises a main body module and a feeding module. The main body module comprises a box body, a vibration motor installed on the outer side face of the box body, a screening piece obliquely fixed to the inner wall of the box body, a bottom plate obliquely fixed to the inner wall of the box body and located below the screening piece, and an air inlet piece installed at the bottom end of the box body and communicating with an inner cavity of the box body. The flow guide pipe is fixed to the box body and communicates with the space above a bottom plate and the space below the bottom plate in the box body, the impurity outlet is fixed to one side of the box body, the top end of the impurity outlet is flush with the screening part, the discharging plate is installed on one side of the impurity outlet, the chipping outlet is installed on the box body and communicates with an inner cavity of the box body, and the box body is used for installing other assemblies. Meanwhile, a sealed space is formed, external dust and impurities are prevented from falling into corn kernels during screening, the supporting legs are symmetrically fixed to the bottom end of the box body, the stability of the box body is guaranteed, and the corn threshing and screening device has the advantages of being good in screening effect and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of corn processing, in particular to a corn threshing and screening device. Background Art

[0002] Corn is an annual monoecious, cross-pollinating plant with tall plants and strong stems. It is an important food crop and feed crop, and is also the crop with the highest total output in the world. Its planting area and total output are second only to rice and wheat. Corn has always been praised as a longevity food. It is rich in protein, fat, vitamins, trace elements, cellulose, etc. It has great potential for developing high-nutrition and high-biological functional foods. Corn needs to be threshed after harvesting, and the threshed corn needs to be screened to remove the sand and gravel particles and debris contained in the corn kernels.

[0003] The existing corn threshing and screening devices have the following main drawbacks during use: the screening effect is poor, which is reflected in the fact that the feeding speed is too fast, and the corn kernels pass through the screen too fast, resulting in difficulty in fully screening the corn kernels, and the debris in the corn kernels is difficult to screen. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a corn threshing and screening device, comprising: a main body module and a feeding module, the main body module comprising a box body, a vibration motor installed on the outer side of the box body, a screening piece obliquely fixed on the inner wall of the box body, a bottom plate obliquely fixed on the inner wall of the box body and located below the screening piece, an air intake piece installed at the bottom end of the box body and connected to the inner cavity of the box body, a guide pipe fixed on the box body and connecting the space above the bottom plate in the box body with the space below the bottom plate, an impurity outlet fixed on one side of the box body and with the top end flush with the screening piece, a discharge plate installed on one side of the impurity outlet, and a debris outlet installed on the box body and connected to the inner cavity of the box body.

[0006] The feeding module includes a hopper arranged above the box body, a feeding pipe connecting the hopper and the inner cavity of the box body, a support fixed between the hopper and the top of the box body, a stopper movably arranged with its end extending into the feeding pipe, and an adjusting member passing through the support and rotatably mounted on the stopper at its end.

[0007] The screening element comprises a screen fixed on the inner wall of the box body and baffles fixed in an array on the top of the screen, and adjacent baffles are arranged in a center pair to form an S-shaped flow channel on the top of the screen.

[0008] In a preferred example, the utility model can be further configured as follows: the air intake member includes a tube body fixed at the bottom end of the box body and connected to the inner cavity of the box body, a high-speed fan installed on the inner wall of the tube body and facing the inner cavity of the box body, and a filter screen installed on the inner wall of the tank body.

[0009] In a preferred example, the utility model can be further configured as follows: the inner top wall of the box body is arranged in an inclined surface, and the inner top wall of the debris outlet is flush with the inner top wall of the box body.

[0010] In a preferred example, the utility model can be further configured as follows: the adjusting member includes a threaded rod passing through the support and having an end rotatably mounted on the stopper, and a handle fixed to the end of the threaded rod.

[0011] In a preferred example, the utility model can be further configured as follows: a threaded hole is opened on the support, the threaded rod passes through the threaded hole, and the threaded rod and the threaded hole are meshed with each other.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the utility model, a screening element is obliquely fixed on the inner wall of the box body, and a bottom plate is also obliquely fixed at the bottom end of the screening element, and an air intake element is installed at the bottom end of the box body, and a guide pipe is installed on one side of the box body. When the corn kernels are screened, the corn kernels are fed into the box body through the feed pipe and fall on the screen. At this time, the vibration motor is started to drive the screen to vibrate to screen the corn kernels, so that the crushed stone particles in the corn kernels pass through the screen and fall onto the bottom plate, and are sent out through the impurity outlet along the bottom plate. At the same time, the air intake element sucks outside air into the box body and introduces it into the space between the bottom plate and the screen through the guide pipe, so that high-speed airflow is blown upward from under the screen, which can blow away the debris contained in the corn kernels and enter the debris outlet along the inner top wall of the box body for delivery. Finally, the screened corn kernels are sent out through the discharge plate, which can effectively remove the crushed stone impurities and light debris in the corn kernels, thereby ensuring the screening effect of the corn kernels and increasing the practical performance.

[0014] 2. In the utility model, a baffle is fixed on the top of the screen, and adjacent baffles are arranged symmetrically with respect to the center, forming an S-shaped flow channel on the screen, so that when the corn kernels move on the screen, they move along the S-shaped flow channel, thereby extending the time the corn kernels are on the screen, so that the screen can fully screen the gravel particles in the corn kernels, and at the same time a block is set on the feed pipe, and a support is fixed on the top of the box body, and an adjusting member passing through the support and rotatably connected to the block is set. By rotating the adjusting member, the length of the block extending into the feed pipe can be controlled, and then the size of the feed port of the feed pipe can be controlled, that is, the feeding speed can be controlled to avoid the corn kernels piling up on the screen to cause poor screening effect, further increasing the practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the screening element of the utility model.

[0020] Reference numerals:

[0021] 100, main module; 110, box; 120, vibration motor; 130, screening element; 131, screen; 132, baffle; 140, bottom plate; 150, air inlet; 151, pipe body; 152, high-speed fan; 153, filter; 160, guide tube; 170, impurity outlet; 180, discharge plate; 190, debris outlet;

[0022] 200, feed module; 210, hopper; 220, feed pipe; 230, support; 231, threaded hole; 240, stopper; 250, adjustment member; 251, threaded rod; 252, handle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] Combination Figure 1-5 As shown, this embodiment provides a corn threshing and screening device, including: a main body module 100 and a feeding module 200.

[0027] Among them, the main module 100 includes a box body 110, a vibration motor 120 installed on the outer surface of the box body 110, a screening element 130 obliquely fixed on the inner wall of the box body 110, a bottom plate 140 obliquely fixed on the inner wall of the box body 110 and located below the screening element 130, an air intake element 150 installed at the bottom end of the box body 110 and connected to the inner cavity of the box body 110, a guide pipe 160 fixed on the box body 110 and connecting the space above the bottom plate 140 in the box body 110 with the space below the bottom plate 140, an impurity outlet 170 fixed on one side of the box body 110 and with the top end flush with the screening element 130, a discharge plate 180 installed on one side of the impurity outlet 170, and a debris outlet 190 installed on the box body 110 and connected to the inner cavity of the box body 110.

[0028] The box body 110 is used to install other components and form a sealed space to prevent external dust and impurities from falling into the corn kernels during screening. Support legs are symmetrically fixed at the bottom of the box body 110 to ensure the stability of the box body 110. The vibration motor 120 is fixed on the outer surface of the box body 110 to drive the box body 110 to vibrate. The vibration of the box body 110 drives the screening element 130 to vibrate, thereby improving the screening effect of the corn kernels.

[0029] The screening element 130 is used to screen the gravel particles in the corn kernels, and includes a screen 131 fixed on the inner wall of the box 110 and baffles 132 fixed in an array on the top of the screen 131. The screen 131 is arranged at an angle for screening the corn kernels. Adjacent baffles 132 are arranged in a center pair to form an S-shaped flow channel at the top of the screen 131, so that when the corn kernels move on the screen 131, they move along the S-shaped flow channel, thereby extending the time that the corn kernels stay on the screen 131, so that the screen 131 can fully screen the gravel particles in the corn kernels and increase the screening effect.

[0030] The bottom plate 140 is also arranged obliquely, and the inclination angle is consistent with the inclination angle of the screen 131, and is used to discharge the gravel particles passing through the screen 131. The impurity pipe is installed on one side of the box body 110, and its top surface is flush with the top surface of the screen 131, and one end is connected to the space between the bottom plate 140 and the screen 131, and the other end is arranged downward to discharge the gravel particles on the bottom plate 140.

[0031] The air intake piece 150 is used to deliver a high-speed airflow into the box body 110, and the guide pipe 160 connects the space below the bottom plate 140 with the space above the bottom plate 140. After the air intake piece 150 delivers the high-speed airflow into the box body 110, the high-speed airflow enters the guide pipe 160 along the bottom end of the bottom plate 140, and enters between the bottom plate 140 and the screen 131 through the guide pipe 160, so that the high-speed airflow is blown upward from the bottom of the screen 131, which can blow away the debris contained in the corn kernels, thereby removing the light debris in the corn.

[0032] Furthermore, the air intake member 150 includes a tube body 151 fixed at the bottom end of the box body 110 and connected to the inner cavity of the box body 110, a high-speed fan 152 installed on the inner wall of the tube body 151 and facing the inner cavity of the box body 110, and a filter screen 153 installed on the inner wall of the tank body. The tube body 151 is used to install the high-speed fan 152, and the high-speed fan 152 is used to accelerate the outside air to the inner cavity of the box body 110 to form a high-speed airflow. The filter screen 153 is used to filter the outside air when it enters to prevent dust and impurities from entering the inner cavity of the box body 110.

[0033] The discharge plate 180 is used to deliver the screened corn kernels, and the debris outlet 190 is used to discharge the debris in the corn kernels. The inner top wall of the box body 110 is arranged in an inclined surface, and the inner top wall of the debris outlet 190 is flush with the inner top wall of the box body 110. When the high-speed airflow carries the debris upward, it will enter the debris outlet 190 along the inner top wall of the box body 110, and finally be discharged from the debris outlet 190, so as to prevent the debris from staying in the inner cavity of the box body 110.

[0034] The feeding module 200 is installed on the box body 110, and is used to feed corn kernels into the box body 110 for screening. It includes a hopper 210 arranged above the box body 110, a feeding pipe 220 connecting the hopper 210 and the inner cavity of the box body 110, a support 230 fixed between the hopper 210 and the top of the box body 110, a stopper 240 movably arranged and with its end extending into the feeding pipe 220, and an adjusting member 250 that is arranged through the support 230 and with its end rotatably mounted on the stopper 240.

[0035] The hopper 210 is used to store corn kernels. The feed pipe 220 connects the hopper 210 and the box body 110 to facilitate the delivery of corn kernels in the hopper 210 into the inner cavity of the box body 110. The support 230 is used to support the hopper 210 to ensure the stability of the hopper 210.

[0036] One end of the stopper 240 is located outside the feed pipe 220, and the other end extends into the feed pipe 220, and is used to control the opening size of the feed pipe 220, that is, to control the feeding speed of corn kernels into the box 110. The adjusting member 250 is used to drive the stopper 240 to move, including a threaded rod 251 that passes through the support 230 and the end of which is rotatably mounted on the stopper 240, and a handle 252 fixed to the end of the threaded rod 251. A threaded hole 231 is opened on the support 230, and the threaded rod 251 passes through the threaded hole 231, and the threaded rod 251 and the threaded hole 231 are meshed with each other, so that when the user rotates the threaded rod 251 through the handle 252, the threaded rod 251 rotates in the threaded hole 231 on the support 230, driving the threaded rod 251 to move, thereby driving the stopper 240 to move, thereby increasing the convenience of use.

[0037] The working principle and use process of the utility model are as follows: when in use, the corn kernels to be screened are poured into the hopper 210, the handle 252 is rotated to drive the threaded rod 251 to rotate, the threaded rod 251 rotates in the threaded hole 231 on the support 230, and drives the threaded rod 251 to move, and the movement of the threaded rod 251 drives the stopper 240 to move, and the length of the stopper 240 extending into the feed pipe 220 is adjusted, that is, the opening size of the feed pipe 220 is adjusted. After the adjustment is completed, the corn kernels in the hopper 210 enter the box body 110 through the feed pipe 220, and fall on the screen 131, and move along the S-shaped flow channel formed by the baffle 132. At this time, the vibration motor 120 is started, driving the box body 110 to vibrate, and the box body 110 moves. 0 vibration drives the screen 131 to vibrate, screens the corn kernels on the screen 131, and makes the gravel particles in the corn kernels fall onto the bottom plate 140 through the screen 131, and are sent out through the impurity outlet 170 along the bottom plate 140. At the same time, the high-speed fan 152 rotates to suck the outside air into the box body 110 to form a high-speed airflow, and the high-speed airflow enters the guide pipe 160 along the bottom end of the bottom plate 140, and enters between the bottom plate 140 and the screen 131 through the guide pipe 160, so that the high-speed airflow is blown upward from the bottom of the screen 131, which can blow away the debris contained in the corn kernels and enter the debris outlet 190 along the inner top wall of the box body 110 for delivery. After that, the screened corn kernels are sent out through the discharge plate 180.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A corn threshing and screening device, comprising: The main body module (100) and the feeding module (200) are characterized in that the main body module (100) comprises a box body (110), a vibration motor (120) installed on the outer surface of the box body (110), a screening element (130) fixed obliquely on the inner wall of the box body (110), a bottom plate (140) fixed obliquely on the inner wall of the box body (110) and located below the screening element (130), and a An air inlet member (150), a flow guide pipe (160) fixed on the box body (110) and connecting the space above the bottom plate (140) in the box body (110) and the space below the bottom plate (140), an impurity outlet (170) fixed on one side of the box body (110) and with the top thereof flush with the screening member (130), a discharge plate (180) installed on one side of the impurity outlet (170), and a debris outlet (190) installed on the box body (110) and connected to the inner cavity of the box body (110); The feeding module (200) comprises a hopper (210) arranged above the box body (110), a feeding pipe (220) connecting the hopper (210) and the inner cavity of the box body (110), a support (230) fixed between the hopper (210) and the top of the box body (110), a stopper (240) movably arranged and having an end extending into the feeding pipe (220), and an adjusting member (250) passing through the support (230) and having an end rotatably mounted on the stopper (240); The screening element (130) comprises a screen (131) fixed on the inner wall of the box (110) and baffles (132) fixed in an array on the top of the screen (131), with adjacent baffles (132) arranged in a central pair to form an S-shaped flow channel at the top of the screen (131).

2. A corn threshing and screening device according to claim 1, characterized in that: The air intake member (150) comprises a tube body (151) fixed at the bottom end of the box body (110) and connected to the inner cavity of the box body (110), a high-speed fan (152) installed on the inner wall of the tube body (151) and facing the inner cavity of the box body (110), and a filter screen (153) installed on the inner wall of the tank body.

3. A corn threshing and screening device according to claim 1, characterized in that: The inner top wall of the box body (110) is arranged in an inclined surface, and the inner top wall of the debris outlet (190) is flush with the inner top wall of the box body (110).

4. A corn threshing and screening device according to claim 1, characterized in that: The adjusting member (250) comprises a threaded rod (251) passing through the support (230) and having its end rotatably mounted on the stopper (240), and a handle (252) fixed to the end of the threaded rod (251).

5. A corn threshing and screening device according to claim 4, characterized in that: The support (230) is provided with a threaded hole (231), the threaded rod (251) passes through the threaded hole (231), and the threaded rod (251) and the threaded hole (231) are meshed with each other.

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