A precise screening and grading device for chinese cabbage seeds
Patent Information
- Application Number
- CN202522648701.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-13
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-13
AI Technical Summary
Existing cabbage seed screening equipment lacks sufficient screening precision, making it difficult to distinguish seeds of similar size but different plumpness. It also suffers from poor vibration stability, resulting in poor grading effects. Furthermore, the equipment is prone to damage and generates excessive noise.
The screening frame is driven by a screening vibration motor to vibrate in a directional manner. Combined with the screen plate and T-shaped reinforcing rod support structure, and with the buffer components (shock-absorbing spring, buffer pad, buffer column) to absorb the vibration impact, the screening frame is stable and uniform. Seeds are graded and collected through the discharge hopper and the discharge bin.
It achieves precise grading of cabbage seeds, reduces grading errors, extends equipment life, reduces noise, and improves screening efficiency and environmental cleanliness.
Smart Images
Figure CN224926485U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precision screening and grading equipment for cabbage seeds, specifically a precision screening and grading equipment for cabbage seeds. Background Technology
[0002] As a major vegetable widely cultivated in both northern and southern my country, the quality of Chinese cabbage seeds directly determines the subsequent germination rate, growth, and final yield. In the process of large-scale planting and seed breeding of Chinese cabbage, seed screening and grading is a crucial preliminary step. Seeds with consistent plumpness and uniform size can ensure uniform germination, reduce field management costs, and improve the uniform quality of commercial vegetables.
[0003] Currently available cabbage seed screening equipment lacks sufficient screening precision. Traditional equipment achieves separation through a single sieve and simple vibration, making it difficult to distinguish seeds of similar size but different plumpness, resulting in poor grading effect. The vibration stability is also poor, and the equipment is prone to violent shaking during vibration, which not only affects screening efficiency but also shortens the equipment's lifespan. Furthermore, it cannot effectively absorb the impact force generated by vibration, which exacerbates equipment noise and may cause seed damage due to excessive vibration amplitude.
[0004] Therefore, it is necessary to provide a precise screening and grading device for cabbage seeds to solve the above-mentioned technical problems. The information disclosed in this background section is only intended to enhance the understanding of the overall background of this utility model, and is not necessarily to be regarded as an admission or to imply in any way that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a precise screening and grading device for cabbage seeds to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision screening and grading device for cabbage seeds, comprising a frame, a screening frame, a buffer assembly, and a screening vibration motor. The screening frame is disposed in the inner cavity of the frame, the buffer assembly is disposed around the lower end of the screening frame, and the rear side of the screening vibration motor is fixedly mounted to the front of the screening frame via a mounting bracket. A screen plate is provided in the inner cavity of the screening frame.
[0007] The buffer assembly includes a shock-absorbing spring, a mounting frame, a buffer pad, and a buffer column. The mounting frame is fixed to the lower end of the frame cavity around the perimeter. The shock-absorbing spring is installed on the front and rear sides of the lower end of the mounting frame cavity. The front and rear sides of the lower end of the buffer pad are fixed to the upper end of the shock-absorbing spring. The upper end of the buffer pad is fixed to the lower end of the buffer column. The upper end of the buffer column passes through the upper end of the mounting frame and is fixed to the lower end of the screening frame around the perimeter.
[0008] As a further embodiment of this utility model: a T-shaped reinforcing rod is installed on the right side of the inner cavity of the screening frame, and a fixing rod is installed sequentially from left to right in the inner cavity of the screening frame, with the upper ends of the T-shaped reinforcing rod and the fixing rod in contact with the lower end of the screen plate.
[0009] As a further embodiment of this utility model: a discharge chamber is provided on the rear side of the upper left side of the screening frame, a positioning groove is provided on the front side of the left side of the inner cavity of the discharge chamber, and a baffle plate is provided in the inner cavity of the positioning groove.
[0010] As a further embodiment of this utility model: a discharge bin is provided on the front side of the lower left end of the screening frame, a fixing groove is provided on the front side of the left side of the discharge bin, and a baffle plate is provided in the inner cavity of the fixing groove.
[0011] As a further improvement of this utility model: guide grooves are provided around the inner cavity of the frame, and guide blocks are slidably connected to the inner cavity of the guide grooves, with the outer side of the guide blocks fixed to the periphery of the screening frame.
[0012] As a further improvement of this utility model: a material feeding bin is installed on the right side of the upper end of the frame, and a box cover is provided at the upper end of the material feeding bin, and a discharge pipe is connected to the lower end of the material feeding bin.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, the screening frame is driven to vibrate in a directional manner by a screening vibration motor, which, together with the screen plate, achieves precise separation of seeds. At the same time, the T-shaped reinforcing rod and the fixed rod inside the screening frame form a stable support structure, which prevents the screen plate from deforming or displacing during vibration, ensuring stable screen hole size, effectively distinguishing seeds of different particle sizes, and reducing grading error compared to traditional equipment. The guide groove in the inner cavity of the frame cooperates with the guide block of the screening frame to limit the vibration trajectory of the screening frame to a straight line, avoiding seed accumulation due to shaking, and further ensuring screening uniformity.
[0015] 2. In this utility model, the buffer assembly adopts a composite structure of "shock-absorbing spring + buffer pad + buffer column". The shock-absorbing spring can quickly absorb the vertical impact force generated by the vibration motor, the buffer pad will evenly transmit the dispersed vibration force, and the buffer column will realize the flexible connection between the screening frame and the frame. At the same time, it reduces the wear of vibration on various parts of the equipment and extends the service life of the equipment. The screening frame is equipped with a discharge hopper and a discharge bin on both sides, and with the pull-out baffle plate one and baffle plate two, it can realize the separate collection and discharge control of different grades of seeds, avoid the mixing of seeds after grading. The feed hopper at the top of the frame is equipped with a box cover, which can facilitate batch feeding and prevent dust from overflowing during the screening process, thus improving the cleanliness of the operating environment. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the back of the screening box and frame structure in this utility model;
[0018] Figure 3 This is a left-side bottom view of the frame and buffer assembly structure in this utility model;
[0019] Figure 4 This is a top view of the frame structure in this utility model;
[0020] Figure 5 This is a top view of the screening frame and screen plate structure in this utility model;
[0021] Figure 6 This is a top view of the back of the screen plate and screening frame structure in this utility model.
[0022] In the diagram: 1. Frame; 2. Screening frame; 3. Buffer assembly; 4. Screening vibration motor; 5. Screen plate; 6. Shock-absorbing spring; 7. Mounting frame; 8. Buffer pad; 9. Buffer column; 10. Discharge hopper; 11. Baffle plate one; 12. Discharge hopper; 13. Baffle plate two; 14. Guide channel. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-6 In this embodiment of the utility model, a precise screening and grading device for cabbage seeds includes a frame 1, a screening frame 2, a buffer component 3 and a screening vibration motor 4. The screening frame 2 is set in the inner cavity of the frame 1, the buffer component 3 is set around the lower end of the screening frame 2, the rear side of the screening vibration motor 4 is fixed to the front of the screening frame 2 by a mounting bracket, and a screen plate 5 is provided in the inner cavity of the screening frame 2.
[0025] The buffer assembly 3 includes a shock-absorbing spring 6, a mounting frame 7, a buffer pad 8, and a buffer column 9. The mounting frame 7 is fixed around the lower end of the inner cavity of the frame 1. The shock-absorbing spring 6 is installed on the front and rear sides of the lower end of the inner cavity of the mounting frame 7. The front and rear sides of the lower end of the buffer pad 8 are fixed to the upper end of the shock-absorbing spring 6. The upper end of the buffer pad 8 is fixed to the lower end of the buffer column 9. The upper end of the buffer column 9 passes through the upper end of the mounting frame 7 and is fixed around the lower end of the screening frame 2.
[0026] Among them, a T-shaped reinforcing rod is installed on the right side of the inner cavity of the screening frame 2, and a fixing rod is installed in the inner cavity of the screening frame 2 from left to right. The upper ends of the T-shaped reinforcing rod and the fixing rod are in contact with the lower end of the screen plate 5. The screen plate 5 is fixed by the T-shaped reinforcing rod and the fixing rod in the screening frame 2 to ensure that the screen plate 5 is flat and not loose.
[0027] Among them, a discharge bin 10 is provided on the rear side of the upper left side of the screening box 2. A positioning groove is provided on the front side of the left side of the inner cavity of the discharge bin 10, and a baffle plate 11 is provided in the inner cavity of the positioning groove. The baffle plate 11 of the discharge bin 10 and the baffle plate 13 of the discharge bin 12 are closed respectively to prevent seed leakage in the initial stage.
[0028] The screen 2 has a discharge bin 12 on the front side of the lower left side. The discharge bin 12 has a fixed groove on the front side of the left side of the inner cavity, and the fixed groove has a baffle plate 13. When the baffle plate 11 of the discharge bin 10 is pulled out, qualified seeds are discharged and collected through the discharge bin 10. After the qualified seeds on the screen plate 5 are discharged, the baffle plate 11 is closed. Then the baffle plate 13 of the discharge bin 12 is pulled out, and the small seeds and impurities at the bottom of the screen 2 are discharged through the discharge bin 12 and collected separately, completing one screening cycle.
[0029] Among them, guide grooves 14 are provided around the inner cavity of the frame 1, and guide blocks are slidably connected to the inner cavity of the guide grooves 14. The outer side of the guide blocks is fixed to the periphery of the screening frame 2. The guide blocks around the screening frame 2 slide directionally along the guide grooves 14 of the frame 1 to ensure stable vibration direction.
[0030] The upper right side of the frame 1 is equipped with a feeding hopper, and the upper end of the feeding hopper is equipped with a cover. The lower end of the feeding hopper is connected to a discharge pipe. After the equipment is completely stationary, the residual seeds in the feeding hopper and screening frame 2 are cleaned, the feeding hopper cover is closed, and the feeding hopper and discharge hopper 12 are cleaned.
[0031] The working principle of this utility model is as follows: First, based on the grading requirements of the cabbage seeds, a screen plate 5 with a corresponding sieve hole size is selected. The screen plate 5 is fixed using T-shaped reinforcing rods and fixing rods within the screening frame 2, ensuring it is flat and secure. The first baffle plate 11 of the discharge hopper 10 and the second baffle plate 13 of the discharge hopper 12 are closed to prevent seed leakage in the initial stage. The cover of the feed hopper at the top of the frame 1 is opened, and the cabbage seeds to be screened are poured into the feed hopper. The seeds flow uniformly into the screen plate 5 of the screening frame 2 through the discharge pipe at the bottom of the feed hopper. The screening vibration motor 4 is then started, and the screen... The vibration motor 4 drives the screening frame 2 to vibrate via the mounting bracket. Simultaneously, the guide blocks around the screening frame 2 slide directionally along the guide groove 14 of the frame 1 to ensure stable vibration direction. Under the action of vibration, the cabbage seeds on the screen plate 5 continuously tumble and move. Small seeds or impurities with a particle size smaller than the screen holes pass through the screen plate 5 and fall to the bottom of the screening frame 2. Plump seeds with the required particle size are trapped on the screen plate 5 and move towards the discharge hopper 10 on the left side of the screening frame 2 during continuous vibration. The buffer assembly 3 works synchronously, and the shock-absorbing spring 6 absorbs the screening through the buffer pad 8 and the buffer column 9. The vibration and impact force of frame 2 reduces the overall shaking and noise of the equipment. When the plump seeds on screen plate 5 accumulate to a certain amount, pull out the baffle plate 11 of discharge hopper 10. Qualified seeds are discharged and collected through discharge hopper 10. After the qualified seeds on screen plate 5 are emptied, close baffle plate 11. Then pull out the baffle plate 13 of discharge hopper 12. Small seeds and impurities at the bottom of screening frame 2 are discharged through discharge hopper 12 and collected separately, completing one screening cycle. After the screening operation is completed, first turn off the screening vibration motor 4. After the equipment is completely still, clean the discharge hopper and the residue in screening frame 2. Leave the seeds, close the feed hopper cover, clean the feed hopper and discharge hopper 12, check whether the shock-absorbing spring 6 of the buffer assembly 3 is elastic, and whether the sliding of the guide groove 14 and the guide block is smooth, to prepare for the next use. The screening vibration motor 4 is existing technology and will not be described in detail here. The contents not described in detail in this instruction are existing technologies known to those skilled in the art. Their technical principles and implementation methods are within the general knowledge scope of those skilled in the art. In order to keep the instruction manual concise, the basic technical details will not be repeated here. The focus is on describing the innovative improvement of this technology.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0033] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A precision screening and grading device for Chinese cabbage seeds, comprising a frame (1), a screening frame (2), a buffer assembly (3), and a screening vibration motor (4), characterized in that: The screening frame (2) is set in the inner cavity of the frame (1), the buffer assembly (3) is set around the lower end of the screening frame (2), the rear side of the screening vibration motor (4) is fixed to the front of the screening frame (2) by the mounting bracket, and the inner cavity of the screening frame (2) is provided with a screen plate (5). The buffer assembly (3) includes a shock-absorbing spring (6), a mounting frame (7), a buffer pad (8), and a buffer column (9). The mounting frame (7) is fixed around the lower end of the inner cavity of the frame (1). The shock-absorbing spring (6) is installed on the front and rear sides of the lower end of the inner cavity of the mounting frame (7). The front and rear sides of the lower end of the buffer pad (8) are fixed to the upper end of the shock-absorbing spring (6). The upper end of the buffer pad (8) is fixed to the lower end of the buffer column (9). The upper end of the buffer column (9) passes through the upper end of the mounting frame (7) and is fixed around the lower end of the screening frame (2).
2. The precision screening and grading device for Chinese cabbage seeds according to claim 1, characterized in that: A T-shaped reinforcing rod is installed on the right side of the inner cavity of the screening frame (2), and a fixing rod is installed in the inner cavity of the screening frame (2) from left to right. The upper ends of the T-shaped reinforcing rod and the fixing rod are in contact with the lower end of the screen plate (5).
3. The precision screening and grading device for Chinese cabbage seeds according to claim 1, characterized in that: The upper left side of the screening box (2) is provided with a discharge chamber (10), and the front side of the left side of the discharge chamber (10) is provided with a positioning groove, and the inner cavity of the positioning groove is provided with a baffle plate (11).
4. The precision screening and grading device for Chinese cabbage seeds according to claim 1, characterized in that: The screening box (2) has a discharge bin (12) on the front side of the lower left side. The discharge bin (12) has a fixed groove on the front side of the left side of the inner cavity, and the fixed groove has a baffle plate (13) inside.
5. The precision screening and grading device for Chinese cabbage seeds according to claim 1, characterized in that: The inner cavity of the frame (1) is provided with guide grooves (14) around its perimeter. The inner cavity of the guide grooves (14) is slidably connected with guide blocks, and the outer side of the guide blocks is fixed to the perimeter of the screening frame (2).
6. The precision screening and grading device for Chinese cabbage seeds according to claim 1, characterized in that: A material discharge bin is installed on the right side of the upper end of the frame (1), and a box cover is provided at the upper end of the material discharge bin, and a discharge pipe is connected to the lower end of the material discharge bin.