Seed screening device
Through the combination of double-layer screening and blower components, the problem that the screening device in the prior art cannot effectively separate seeds of different sizes and weights is solved, efficient seed sieving and impurity removal are achieved, and seed purity and equipment service life are improved.
Patent Information
- Application Number
- CN202422559708.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing seed sieving devices generally use a layer of screen to vibrate and cannot effectively separate seeds of different sizes and weights, resulting in the difficulty of small shriveled seeds and residual shells being screened in time, reducing the screening efficiency.
The double-layer screening assembly and blower assembly are used to vibrate the screen with a rotating rod and cam driven by the motor, and light impurities are blown away by the blower. Multi-layer screening is performed with different mesh screens to ensure the effective removal of impurities.
It improves the accuracy and efficiency of screening, ensures high purity of seeds, reduces the labor intensity of operators and extends the service life of the equipment.
Smart Images
Figure CN223069914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seed screening equipment, in particular to a seed screening device. Background Technique
[0002] A seed screening device is mainly used for agricultural planting, and effectively screens seeds of different sizes and qualities through the principle of vibration or gravity. The device usually consists of a screen, a vibration device, a collection tank and other parts. When working, the seeds to be screened are evenly placed on the screen, and the vibration makes the seeds move along the screen. Small impurities and unqualified seeds fall through the pores of the screen, while the qualified seeds are collected. In this way, the device can improve the purity and quality of seeds, thereby improving the planting efficiency and yield of crops, and is one of the important devices in modern agriculture.
[0003] However, the seed screening devices in the prior art generally vibrate through a single layer of screen for screening, so that seeds of different sizes and weights cannot be effectively separated, resulting in small shriveled seeds and residual shells being difficult to be screened out in time, thereby reducing the overall screening efficiency. In view of the above problems, the technical personnel in this field have proposed a seed screening device to solve the above problems. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to provide a seed screening device, aiming to improve the problem that the seed screening devices in the prior art generally vibrate through a single layer of screen for screening.
[0005] In order to achieve the above purpose, the utility model is realized through the following technical solutions:
[0006] A seed screening device includes a support frame. The top end of the support frame is fixedly connected with a feeding port. There are two screening components arranged inside the support frame for multi-layer screening of seeds. There is a vibration component arranged inside the support frame for vibrating the screening components to make them screen. There is a blowing component arranged inside the support frame for blowing the lighter impurities away from the screening components. A collection box is slidably connected to the bottom of the support frame; the vibration component includes a motor, the motor is fixedly connected to the right side of the support frame. There are rotating rods rotatably connected to the upper and lower sides inside the support frame. The right end of the rotating rod is fixedly connected with a pulley, and cam wheels are fixedly connected to the left and right sides of the outside of the rotating rod.
[0007] Preferably, the above-mentioned screening component includes a mounting frame. One end of the mounting frame is rotatably connected to the front side of the support frame, and the other end of the mounting frame is movably connected to the rear side of the support frame. A fixed frame is slidably connected inside the mounting frame. A screen is fixedly connected to the inner wall of the fixed frame. A guide plate is fixedly connected to the front side of the mounting frame. There are two buckle components arranged inside the mounting frame.
[0008] Preferably, the above-mentioned air blowing assembly includes a blower, the blower is fixedly connected to the right side of the support frame, the output end of the blower is fixedly connected with a delivery pipe, the outside of the delivery pipe is fixedly connected with a plurality of spray nozzles, the plurality of spray nozzles are in the middle of the two screen meshes, and the left side of the support frame is fixedly connected with a collection box.
[0009] Preferably, the above-mentioned buckle assembly includes two limit slots, the two limit slots are respectively opened on the left and right sides inside the mounting frame, a limit block is slidably connected inside the limit slot, one side of the limit block is fixedly connected with a clamping block, the other side of the limit block is fixedly connected with a pull rope, a spring is sleeved outside the pull rope, the adjacent sides of the two pull ropes are fixedly connected with a turning handle, and clamping slots are opened on the left and right sides inside the fixing frame.
[0010] Preferably, the directions guided by the above-mentioned two guide plates are opposite, the screen holes of the upper screen mesh are larger, and the screen holes of the lower screen mesh are smaller.
[0011] Preferably, the outside of the above-mentioned cam abuts against the bottom of the screen mesh, and the output end of the motor is fixedly connected to the outside of one of the belt pulleys.
[0012] Preferably, one end of the above-mentioned spring is fixedly connected to the outside of the limit block, and the other end of the spring is fixedly connected to the inner wall of the limit slot.
[0013] Preferably, the outside of the above-mentioned clamping block is engaged with the inside of the clamping slot, and the inside of the mounting frame is rotationally connected to the outside of the turning handle.
[0014] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:
[0015] The present utility model vibrates the screen mesh through the rotating rod and the cam driven by the motor, and then uses double-layer screening and air separation to remove impurities, so that larger impurities can be effectively removed. The seeds are further screened through the lower screen mesh, improving the screening accuracy, and can blow away light impurities (such as shriveled seeds and residual shells), ensuring that the impurities are effectively removed, thereby improving the overall screening efficiency and ensuring the high purity of the finally screened seeds. By rotating the turning handle to drive the movement of the pull rope, the limit block and the clamping block, and then through the elastic action of the spring, the fixing frame can be conveniently disassembled and assembled, thereby reducing the equipment downtime, reducing the labor intensity of the operator, improving the overall production efficiency, and prolonging the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a perspective view of the present utility model.
[0017] Figure 2 is a schematic structural diagram of the screen mesh of the present utility model.
[0018] Figure 3 is a schematic structural diagram of the rotating rod of the present utility model.
[0019] Figure 4 For Figure 3 The enlarged structural schematic diagram at position A in
[0020] Figure 5 The structural schematic diagram of the drawstring of the present utility model.
[0021] Figure 6 For Figure 5 The enlarged structural schematic diagram at position B in
[0022] In the figure, 1. Support frame; 2. Feeding port; 3. Screening assembly; 301. Mounting frame; 302. Fixed frame; 303. Sieve mesh; 304. Guide plate; 4. Vibration assembly; 401. Motor; 402. Rotating rod; 403. Pulley; 404. Cam; 5. Blowing assembly; 501. Blower; 502. Delivery pipe; 503. Sprayer; 504. Collection box; 6. Buckle assembly; 601. Limit groove; 602. Spring; 603. Limit block; 604. Block; 605. Card slot; 606. Drawstring; 607. Rotating handle; 7. Collection box. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The protection scope of the present utility model is not limited by the embodiments.
[0024] As Figures 1 - 3 shown, a seed screening device of the present utility model includes a support frame 1. The top of the support frame 1 is fixedly connected with a feeding port 2. Two screening assemblies 3 are arranged inside the support frame 1 for multi-layer screening of seeds. A vibration assembly 4 is arranged inside the support frame 1 for vibrating the screening assembly 3 to perform screening. A blowing assembly 5 is arranged inside the support frame 1 for blowing the lighter impurities away from the screening assembly 3. A collection box 7 is slidably connected to the bottom of the support frame 1. The support frame 1 is the main body structure of the device. The top of the support frame 1 is fixedly connected with a feeding port 2, which is convenient for uniformly feeding the seeds to be screened. By arranging two screening assemblies 3 inside the support frame 1 and using sieve meshes 303 with different mesh numbers, multi-layer screening of seeds can be realized. By arranging a vibration assembly 4 inside the support frame 1, the screening assembly 3 can be driven to vibrate up and down to promote the movement and screening of seeds on the sieve mesh 303. By arranging the blowing assembly 5 inside the support frame 1, air flow can be generated to blow the lighter impurities (such as residual shells and shriveled seeds) away from the screening assembly 3 to ensure the purity of qualified seeds. The collection box 7 is slidably connected to the bottom of the support frame 1 for collecting the screened seeds.
[0025] As Figure 1 and Figure 2As shown, the screening assembly 3 includes a mounting frame 301. One end of the mounting frame 301 is rotatably connected to the front side of the support frame 1, and the other end of the mounting frame 301 is movably connected to the rear side of the support frame 1. A fixing frame 302 is slidably connected inside the mounting frame 301. A screen mesh 303 is fixedly connected to the inner wall of the fixing frame 302. The screen holes of the upper screen mesh 303 are relatively large, and the screen holes of the lower screen mesh 303 are relatively small. A guide plate 304 is fixedly connected to the front side of the mounting frame 301. The directions guided by the two guide plates 304 are opposite. Two snap components 6 are arranged inside the mounting frame 301. The mounting frame 301 is the core structure of the screening assembly 3. By being rotatably connected to the front side of the support frame 1 at one end and movably connected to the rear side of the support frame 1 at the other end, it can perform inclined vibration, and the fixing frame 302 can be conveniently installed through the snap components 6. Baffles are arranged on the left and right sides of the fixing frame 302 to prevent seeds from falling off the screen mesh 303. Since the screen holes of the upper screen mesh 303 are relatively large, the seeds can fall, and the relatively large impurities can be screened out. Since the screen holes of the lower screen mesh 303 are relatively small, the sizes of the seeds can be classified. Through the guide plate 304, the impurities on the upper screen mesh 303 can be guided to the left, and the relatively large seeds on the lower screen mesh 303 can be guided to the right. Then, the smaller seeds can be collected through the collection box 7.
[0026] As Figure 1 and Figure 3 shown, the vibration assembly 4 includes a motor 401. The motor 401 is fixedly connected to the right side of the support frame 1. Rotating rods 402 are rotatably connected to both the upper and lower sides inside the support frame 1. A pulley 403 is fixedly connected to the right end of the rotating rod 402. The output end of the motor 401 is fixedly connected to the outside of one of the pulleys 403. Cam 404s are fixedly connected to both the left and right sides of the outside of the rotating rod 402. The outside of the cam 404s abuts against the bottom of the screen mesh 303. The motor 401 fixed to the right side of the support frame 1 is the power source and can drive the entire vibration assembly 4. The output end of the motor 401 is fixedly connected to the outside of one of the pulleys 403. The two pulleys 403 are connected by a belt for transmitting the rotational power of the motor 401 to the rotating rod 402. Cam 404s are fixedly connected to both the left and right sides of the outside of the rotating rod 402, converting the rotation of the rotating rod 402 into an up-and-down vibration movement, which can achieve periodic up-and-down impacts on the screen mesh 303, thereby generating a vibration effect.
[0027] As Figure 3 and Figure 4As shown, the air blowing assembly 5 includes a blower 501. The blower 501 is fixedly connected to the right side of the support frame 1. The output end of the blower 501 is fixedly connected with a delivery pipe 502. A plurality of spray nozzles 503 are fixedly connected to the outside of the delivery pipe 502. The plurality of spray nozzles 503 are located between the two screen meshes 303. A collection box 504 is fixedly connected to the left side of the support frame 1. The blower 501 is the core component of the air blowing assembly 5, responsible for compressing and sending out air or gas. The delivery pipe 502 is a pipe connecting the blower 501 and the spray nozzles 503. The plurality of spray nozzles 503 are fixedly connected to the outside of the delivery pipe 502 and are distributed between the two screen meshes 303, so that the seeds falling can be subjected to air separation. Then, because the positions of the collection box 504 and the spray nozzles 503 correspond, the overly light impurities (shriveled seeds, residual shells) can be blown into the collection box 504.
[0028] As Figure 2 , Figure 5 and Figure 6 As shown, the buckle assembly 6 includes two limit slots 601. The two limit slots 601 are respectively opened on the left and right sides inside the mounting frame 301. A limit block 603 is slidably connected inside the limit slot 601. A clamping block 604 is fixedly connected to one side of the limit block 603. A pull rope 606 is fixedly connected to the other side of the limit block 603. A spring 602 is sleeved on the outside of the pull rope 606. One end of the spring 602 is fixedly connected to the outside of the limit block 603, and the other end of the spring 602 is fixedly connected to the inner wall of the limit slot 601. The adjacent sides of the two pull ropes 606 are fixedly connected with a turning handle 607. The inside of the mounting frame 301 is rotatably connected to the outside of the turning handle 607. Clamping slots 605 are opened on both the left and right sides inside the fixed frame 302. The outside of the clamping block 604 is engaged with the inside of the clamping slot 605. The limit slot 601 can limit the limit block 603 and accommodate and guide the sliding of the limit block 603. The mounting frame 301 limits the turning handle 607, making the turning handle 607 stable when rotating. Then, because a clamping block 604 is fixedly connected to one side of the limit block 603 and a pull rope 606 is fixedly connected to the other side of the limit block 603, when the turning handle 607 drives the pull rope 606 to move, the limit block 603 can be driven to move, so that the clamping block 604 can move with it. One end of the spring 602 is fixedly connected to the outside of the limit block 603, and the other end is fixedly connected to the inner wall of the limit slot 601, so that when the limit block 603 is moved, a reverse restoring force can be provided. Through the engagement of the clamping block 604 and the clamping slot 605, the position of the fixed frame 302 can be fixed.
[0029] The working principle of the present utility model is as follows: When it is necessary to screen seeds, the seeds are conveyed through the feeding port 2 to the upper sieve mesh 303. At the same time, the motor 401 is started to drive a pulley 403 to rotate, thereby driving another pulley 403 to rotate with it, and further driving the rotating rod 402 to rotate, so as to drive the cam 404 on the rotating rod 402 to intermittently strike the sieve mesh 303, and then the sieve mesh 303 vibrates to screen the seeds. The impurities can be left by the upper sieve mesh 303, and the seeds are screened and dropped onto the lower sieve mesh 303, and then the lower sieve mesh 303 can screen seeds of different sizes; At the same time, when the seeds fall from the upper sieve mesh 303, by starting the blower 501 to operate, the seeds are winnowed through the conveying pipe 502 and the nozzle 503, so that the too-light impurities (shriveled seeds, residual shells) can be blown into the collection box 504; In addition, when the sieve holes of the sieve mesh 303 are blocked and need to be maintained and cleaned, by rotating the turning handle 607 to drive the two pull ropes 606 to move outwards, thereby driving the two limit blocks 603 to move with it, and further driving the clamping block 604 to move with it, so that the clamping block 604 and the clamping groove 605 are separated, and then the fixing frame 302 can be conveniently taken out to maintain and clean the sieve holes of the sieve mesh 303. After the cleaning is completed, the fixing frame 302 is placed inside the mounting frame 301, and then through the elastic action of the spring 602, the two limit blocks 603 are driven to move inwards, thereby driving the clamping block 604 to move into the clamping groove 605, and then the clamping block 604 and the clamping groove 605 are engaged, so that the position of the fixing frame 302 is fixed, and then the maintenance and cleaning of the sieve mesh 303 are completed.
Claims
1. A seed screening device, which comprises a support frame (1), and is characterized in that: The top end of the support frame (1) is fixedly connected with a feeding port (2). Inside the support frame (1), there are two screening components (3) for multi-layer screening of seeds. Inside the support frame (1), there is a vibration component (4) for vibrating the screening components (3) to perform screening. Inside the support frame (1), there is a blowing component (5) for blowing the lighter impurities away from the screening components (3). The bottom of the support frame (1) is slidably connected with a collection box (7); The vibration component (4) includes a motor (401). The motor (401) is fixedly connected to the right side of the support frame (1). Both the upper and lower sides inside the support frame (1) are rotatably connected with a rotating rod (402). The right end of the rotating rod (402) is fixedly connected with a pulley (403). On both the left and right sides of the outside of the rotating rod (402), there are fixedly connected cams (404).
2. The seed screening device according to claim 1, characterized in that: The screening component (3) includes a mounting frame (301). One end of the mounting frame (301) is rotatably connected to the front side of the support frame (1), and the other end of the mounting frame (301) is movably connected to the rear side of the support frame (1). Inside the mounting frame (301), there is a fixed frame (302) slidably connected. The inner wall of the fixed frame (302) is fixedly connected with a screen (303). The front side of the mounting frame (301) is fixedly connected with a guide plate (304). Inside the mounting frame (301), there are two snap components (6).
3. A seed screening device according to claim 1, characterized in that: The blowing component (5) includes a blower (501). The blower (501) is fixedly connected to the right side of the support frame (1). The output end of the blower (501) is fixedly connected with a delivery pipe (502). The outside of the delivery pipe (502) is fixedly connected with a plurality of nozzles (503). The plurality of nozzles (503) are in the middle of the two screens (303). The left side of the support frame (1) is fixedly connected with a collection box (504).
4. The seed screening device according to claim 2, wherein: The snap component (6) includes two limiting grooves (601). The two limiting grooves (601) are respectively opened on the left and right sides inside the mounting frame (301). Inside the limiting grooves (601), there is a limiting block (603) slidably connected. One side of the limiting block (603) is fixedly connected with a clamping block (604). The other side of the limiting block (603) is fixedly connected with a pull rope (606). The outside of the pull rope (606) is sleeved with a spring (602). The adjacent sides of the two pull ropes (606) are fixedly connected with a turning handle (607). On the left and right sides inside the fixed frame (302), there are respectively opened clamping grooves (605).
5. The seed screening device according to claim 2, characterized in that: The directions guided by the two guide plates (304) are opposite. The screen holes of the upper screen (303) are larger, and the screen holes of the lower screen (303) are smaller.
6. The seed screening device according to claim 2, wherein: The outside of the cam (404) abuts against the bottom of the screen (303). The output end of the motor (401) is fixedly connected to the outside of one of the pulleys (403).
7. A seed screening device according to claim 4, characterized in that: One end of the spring (602) is fixedly connected to the outside of the limiting block (603), and the other end of the spring (602) is fixedly connected to the inner wall of the limiting groove (601).
8. A seed screening device according to claim 4, characterized in that: The exterior of the clamping block (604) is engaged with the interior of the clamping groove (605), and the interior of the mounting bracket (301) is rotatably connected to the exterior of the rotary handle (607).