Seed screening device for watermelon planting
By designing a rotating rod in the screening box to drive the screening auger and the feeding auger to rotate, combined with the eccentric block and the discharge plate vibration assistance, the problem of insufficient screening accuracy in traditional devices is solved, and efficient grading, screening and collection of watermelon seeds are achieved.
Patent Information
- Application Number
- CN202422573974.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-24
AI Technical Summary
In the prior art, traditional watermelon planting and screening devices lack a sophisticated grading and screening mechanism during the seedling raising process, resulting in insufficient screening precision and accuracy, and are unable to effectively distinguish and collect seeds of different sizes, affecting screening efficiency and effectiveness.
A seed screening device for watermelon planting was designed, which included a screening box, a screening cylinder and a feeding cylinder. The screening auger and the feeding auger were rotated by a rotating rod, and the screening holes were arranged in ascending order to achieve graded screening of seeds. The vibration assistance of the eccentric block and the discharge plate prevented blockage and improved screening efficiency.
It significantly improves the accuracy and efficiency of seed screening, realizes the effective separation and collection of seeds of different particle sizes, meets diversified screening needs, and improves the accuracy and flexibility of screening.
Smart Images
Figure CN223367435U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of watermelon planting equipment, in particular to a seed screening device for watermelon planting. Background Art
[0002] Watermelon, as a favorite fruit in summer, is famous for its sweet flesh. It not only brings coolness and summer heat relief, but its seeds are rich in oil and the peel also has medicinal value. In the process of watermelon cultivation, seedling cultivation is a vital link, and the quality of seeds is the key factor in determining the germination rate.
[0003] In the seedling preparation stage, careful screening of seeds is an essential step, aiming to select those watermelon seeds with full grains and good quality for seedling cultivation. However, traditional screening devices may have some shortcomings, such as the lack of a fine grading and screening mechanism, or the aperture design of the screen holes fails to fully consider the diversity of seeds and particle size differences, which directly leads to insufficient precision and accuracy in the screening process. This limitation makes it difficult for traditional devices to effectively distinguish and collect seeds of different sizes, affecting the efficiency and effectiveness of screening. It lacks wide adaptability to seeds of different types and specifications and cannot meet diverse screening needs. With the advancement of agricultural technology and growers' pursuit of high-quality watermelons, higher requirements are placed on the accuracy and flexibility of seed screening. Therefore, it needs to be improved and optimized. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the utility model provides a seed screening device for watermelon planting, which solves the problems of low accuracy and low flexibility in seed screening.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seed screening device for watermelon planting, comprising a screening box, a screening drum and a feeding drum are fixedly installed inside the screening box, the feeding drum is located above the screening drum, and rotating rods 1 and 2 are rotatably installed inside the screening drum and the feeding drum, respectively, and a screening auger and a feeding auger are fixedly sleeved on the outer walls of the rotating rods 1 and 2, respectively, and a feeding channel is fixedly installed at the bottom of the feeding drum, and the bottom of the feeding channel is fixedly connected to the top of the screening drum, and the interior of the screening drum, the feeding channel and the feeding drum are connected, and four groups of screening holes are provided at the bottom of the screening drum, and the apertures of the four groups of screening holes are arranged in ascending order, and the screening holes closest to the feeding channel will be the smallest.
[0006] Preferably, three vertical partitions are fixedly installed inside the screening box, and the three vertical partitions are fixedly connected to the screening drum and the feed drum. The three vertical partitions are designed to be spaced apart from the screening holes. Four discharge plates are hingedly installed on the inner wall of the back of the screening box, and four rectangular slots are opened on the front of the screening box. The four discharge plates respectively pass through the corresponding rectangular slots and extend out of the screening box.
[0007] Preferably, both ends of the rotating rod 1 extend out of the screening box, and the end of the rotating rod 2 away from the material conveying channel extends out of the screening box. A motor is fixedly mounted on the outer wall of the screening box, and the output shaft of the motor is fixedly connected to the end close to the rotating rod 1. The rotating rod 1 is connected to the rotating rod 2 through a belt 2.
[0008] Preferably, a feed channel is fixedly installed on the top of the screening box, the bottom end of the feed channel extends into the screening box and is fixedly connected to the top of the feeding cylinder, and the feed channel is communicated with the feeding cylinder.
[0009] Preferably, a rotating rod three is rotatably installed inside the screening box, and one end of the rotating rod three close to the motor extends out of the screening box. The rotating rod three is transmission-connected to the rotating rod one through a belt one.
[0010] Preferably, the outer fixed sleeve of the outer wall of the rotating rod 3 is provided with four groups of eccentric blocks, and the four groups of eccentric blocks are in contact with the corresponding discharge plates.
[0011] Preferably, the bottom ends of the four discharge plates are connected to the inner surface of the bottom of the screening box by four springs to achieve buffering and vibration assistance.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] The utility model drives the first and second rotating rods in the seed screening device for watermelon planting to rotate respectively under the drive of the motor, and this design significantly improves the automation degree and efficiency of the screening process. The seeds in the feeding cylinder are pushed by the feeding auger and smoothly enter the screening cylinder through the feeding channel, ensuring the continuity and stability of the seed flow. After entering the screening cylinder, the seeds continue to be pushed by the screening auger and are gradually dispersed and contacted with screening holes of different apertures during its rotation. Since the apertures of the screening holes are arranged in ascending order, seeds of different particle sizes will be graded and screened out according to their size. Smaller seeds will first pass through the smaller screening holes and fall into the collecting device below, while larger seeds will continue to remain in the screening cylinder until they encounter screening holes of suitable apertures. Compared with traditional devices, the graded screening method not only improves the screening accuracy, but also enables seeds of different particle sizes to be effectively separated and collected, thereby improving the screening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the side structure of the screening box of the utility model;
[0016] Figure 3 This is a schematic diagram of the internal front structure of the screening box of the utility model;
[0017] Figure 4 This is a schematic diagram of the back structure of the screening box of the utility model;
[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of A;
[0019] Figure 6 This is a schematic diagram of the eccentric block structure of the utility model;
[0020] Figure 7 This is a schematic diagram of the screen hole structure of the utility model.
[0021] In the figure: 1. Screening box; 2. Motor; 3. Rotating rod 1; 4. Screening cylinder; 5. Screening auger; 6. Feeding cylinder; 7. Rotating rod 2; 8. Feeding auger; 9. Rotating rod 3; 10. Eccentric block; 11. Belt 1; 12. Belt 2; 13. Vertical partition; 14. Discharge plate; 15. Spring; 16. Rectangular groove; 17. Screening hole; 18. Feed channel; 19. Delivery channel. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] like Figures 1 to 7As shown, the utility model provides a seed screening device for watermelon planting, including a screening box 1, a screening cylinder 4 and a feeding cylinder 6 are fixedly installed inside the screening box 1, and the feeding cylinder 6 is located above the screening cylinder 4, and the insides of the screening cylinder 4 and the feeding cylinder 6 are respectively rotatably installed with a rotating rod 1 3 and a rotating rod 2 7, and the outer walls of the rotating rod 1 3 and the rotating rod 2 7 are respectively fixedly sleeved with a screening auger 5 and a feeding auger 8, and the bottom of the feeding cylinder 6 is fixedly installed with a feeding channel 19, and the bottom of the feeding channel 19 is fixedly connected to the top of the screening cylinder 4, and the interiors of the screening cylinder 4, the feeding channel 19 and the feeding cylinder 6 are connected, and four groups of screening holes 17 are provided at the bottom of the screening cylinder 4, and the apertures of the four groups of screening holes 17 are arranged in ascending order, and the screening holes closest to the feeding channel 19 will be the smallest.
[0024] Driven by the motor 2, the rotating rod 1 3 and the rotating rod 2 7 in the seed screening device for watermelon planting respectively drive the screening auger 5 and the feeding auger 8 to rotate. This design significantly improves the automation and efficiency of the screening process. The seeds in the feeding cylinder 6 are pushed by the feeding auger 8 and smoothly enter the screening cylinder 4 through the feeding channel 19, ensuring the continuity and stability of the seed flow. After entering the screening cylinder 4, the seeds continue to be pushed by the screening auger 5 and gradually disperse and contact the screening holes 17 of different apertures during its rotation. Since the apertures of the screening holes 17 are arranged in increasing order, seeds of different particle sizes will be graded and screened according to their size. Smaller seeds will first pass through the smaller screening holes and fall into the collection device below, while larger seeds will continue to remain in the screening cylinder until they encounter screening holes of suitable apertures. Compared with traditional devices, the graded screening method not only improves the screening accuracy, but also enables seeds of different particle sizes to be effectively separated and collected, thereby improving the accuracy of screening.
[0025] like Figures 1 to 3 As shown, three vertical partitions 13 are fixedly installed inside the screening box 1, and the three vertical partitions 13 are fixedly connected to the screening drum 4 and the feeding drum 6. The three vertical partitions 13 are spaced apart from the screening holes 17. Four discharge plates 14 are hingedly installed on the inner wall of the back of the screening box 1. Four rectangular slots 16 are opened on the front of the screening box 1. The four discharge plates 14 respectively pass through the corresponding rectangular slots 16 and extend out of the screening box 1.
[0026] By making the position of the discharge plate 14 correspond to the screening hole 17, when the material is screened and falls into the corresponding screening hole 17, it can slide smoothly onto the discharge plate 14 and be guided out of the screening box through the discharge plate 14. The discharge plate 14 is connected to the screening box by a hinged connection. The hinged connection allows the discharge plate 14 to be fine-tuned or swung within a certain range.
[0027] like Figures 1 to 3As shown, both ends of the rotating rod 1 3 extend out of the screening box 1, and the end of the rotating rod 2 7 away from the material conveying channel 19 extends out of the screening box 1. A motor 2 is fixedly mounted on the outer wall of the screening box 1, and the output shaft of the motor 2 is fixedly connected to the end close to the rotating rod 1 3. The rotating rod 1 3 is connected to the rotating rod 2 7 through the belt 2 12.
[0028] like Figures 3 and 4 As shown, a feed channel 18 is fixedly installed on the top of the screening box 1 , and the bottom end of the feed channel 18 extends into the screening box 1 and is fixedly connected to the top of the feed cylinder 6 , and the feed channel 18 is communicated with the feed cylinder 6 .
[0029] The bottom end of the feed channel 18 cleverly extends to the interior of the screening box 1 and is tightly and firmly fixed to the top of the feed barrel 6, ensuring that the seeds can smoothly and smoothly enter the feed barrel 6 when passing through the feed channel 18.
[0030] like Figure 6 As shown, a rotating rod 3 9 is rotatably installed inside the screening box 1, and one end of the rotating rod 3 9 close to the motor 2 extends out of the screening box 1. The rotating rod 3 9 is connected to the rotating rod 1 3 through a belt 11.
[0031] Through the transmission connection of belt 11, the power of motor 2 can be stably and efficiently transmitted to rotating rod 3 9, thereby driving its rotation with high transmission efficiency, ensuring that the screening device can work continuously and stably.
[0032] like Figures 1 to 7 As shown, four groups of eccentric blocks 10 are fixedly sleeved outside the outer wall of the rotating rod 9, and the four groups of eccentric blocks 10 are in contact with the corresponding discharge plates 14.
[0033] As the rotating rod 3 9 rotates, the eccentric weight 10, due to its offset from the axis, periodically strikes or pushes the contacting discharge plate 14. This dynamic action promotes the vibration and dispersion of the material on the discharge plate, effectively preventing material blockage and accumulation during the discharge process, thereby significantly improving seed screening efficiency.
[0034] like Figure 5 As shown, the bottom ends of the four discharge plates 14 are connected to the inner surface of the bottom of the screening box 1 by four springs 15 to achieve buffering and vibration assistance.
[0035] The elastic connection of the spring 15 allows the discharge plate 14 to vibrate freely or respond to external forces to a certain extent, thereby promoting smoother sliding or dispersion of materials, reducing blockage and improving screening efficiency.
[0036] The working principle and use process of this utility model:
[0037] The seeds enter through the feed channel 18 at the top of the screening box 1. The bottom end of the feed channel 18 is fixedly connected to the top of the feed drum 6 to ensure that the seeds enter the feed drum 6 smoothly. Under the drive of the motor 2 and the action of the belt 2 12, the rotating rod 2 7 drives the feeding auger 8 to rotate. The rotation of the feeding auger 8 pushes the seeds in the feeding drum 6 to move. The seeds enter the screening drum 4 smoothly through the feeding channel 19 at the bottom of the feeding drum 6. The seeds entering the screening drum 4 continue to rotate and disperse under the push of the screening auger 5. Seeds of different particle sizes are graded and screened out through the corresponding screening holes 17 according to their size. The smaller seeds first fall into the lower through the smaller screening holes In the collecting device, larger seeds continue to remain in the screening cylinder and wait for further screening. At the same time, the rotating rod three 9 is connected to the rotating rod 3 through the belt one 11 to rotate. The four groups of eccentric blocks 10 on the outer wall of the rotating rod three 9 are in contact with the corresponding discharge plate 14. This dynamic action promotes the vibration and dispersion of the material on the discharge plate 14 to prevent blockage and accumulation. The discharge plate 14 is connected to the screening box 1 by a hinge, and can be buffered and vibrated by the spring 15 to further promote the smooth sliding of the material. The screened seeds slide onto the discharge plate 14 through the corresponding screening holes 17 and are discharged out of the screening box 1 through the discharge plate 14.
[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A watermelon seed screening device, comprising a screening box (1), characterized in that: A screening drum (4) and a feeding drum (6) are fixedly installed inside the screening box (1), and the feeding drum (6) is located above the screening drum (4). A rotating rod (3) and a rotating rod (7) are rotatably installed inside the screening drum (4) and the feeding drum (6), respectively. A screening auger (5) and a feeding auger (8) are fixedly sleeved on the outer walls of the rotating rod (3) and the rotating rod (7), respectively. A feeding channel (19) is fixedly installed at the bottom of the feeding drum (6), and the bottom of the feeding channel (19) is fixedly connected to the top of the screening drum (4). The insides of the screening drum (4), the feeding channel (19) and the feeding drum (6) are connected. Four groups of screening holes (17) are opened at the bottom of the screening drum (4), and the apertures of the four groups of screening holes (17) are arranged in ascending order, and the screening holes on the side closest to the feeding channel (19) are the smallest.
2. The watermelon planting seed screening device according to claim 1, characterized in that: Three vertical partitions (13) are fixedly installed inside the screening box (1), and the three vertical partitions (13) are fixedly connected to the screening drum (4) and the feeding drum (6). The three vertical partitions (13) are spaced apart from the screening holes (17). Four discharge plates (14) are hingedly installed on the inner wall of the back of the screening box (1). Four rectangular slots (16) are opened on the front of the screening box (1), and the four discharge plates (14) respectively pass through the corresponding rectangular slots (16) and extend out of the screening box (1).
3. The watermelon planting seed screening device according to claim 1, characterized in that: Both ends of the rotating rod 1 (3) extend out of the screening box (1), and one end of the rotating rod 2 (7) away from the feeding channel (19) extends out of the screening box (1). A motor (2) is fixedly mounted on the outer wall of the screening box (1), and the output shaft of the motor (2) is fixedly connected to the end close to the rotating rod 1 (3). The rotating rod 1 (3) is connected to the rotating rod 2 (7) through a belt 2 (12).
4. The watermelon planting seed screening device according to claim 1, characterized in that: A feed channel (18) is fixedly mounted on the top of the screening box (1), the bottom end of the feed channel (18) extends into the screening box (1) and is fixedly connected to the top of the feed cylinder (6), and the feed channel (18) is communicated with the feed cylinder (6).
5. The watermelon planting seed screening device according to claim 1, characterized in that: A rotating rod 3 (9) is rotatably mounted inside the screening box (1), and one end of the rotating rod 3 (9) close to the motor (2) extends out of the screening box (1). The rotating rod 3 (9) is connected to the rotating rod 1 (3) through a belt 1 (11).
6. The watermelon planting seed screening device according to claim 5, characterized in that: The outer fixed sleeve of the outer wall of the rotating rod 3 (9) is provided with four groups of eccentric blocks (10), and the four groups of eccentric blocks (10) are in contact with the corresponding discharge plates (14).
7. The watermelon planting seed screening device according to claim 2, characterized in that: The bottom ends of the four discharge plates (14) are connected to the inner surface of the bottom of the screening box (1) by four springs (15) to achieve buffering and vibration assistance.