A screening device for chili pepper seed grading

Abstract

The utility model relates to agricultural technology field, specifically disclose a screening device for pepper seed grading, including frame, the sieve mechanism of inclination setting and drive mechanism. The frame top is equipped with the inverted conical feed bin, is provided with the storage bin in its inside and is equipped with the material door cover plate of open -and -close, the sieve mechanism installs through the cooperation of hinged and limiting piece, contains at least two layers of detachable screen cloth, its sieve aperture sets up according to gradient to realize three -level classification, and the first discharge cavity, second discharge cavity and third discharge cavity are formed correspondingly, drive mechanism drives driven shaft through belt drive, converts rotary motion into the reciprocating motion of drive shaft, and drive sieve mechanism vibrates in the limiting range. The device solves the problem of insufficient screening precision and poor adaptability of traditional equipment by modular screen design, combined with optimized material flow control and vibration control, significantly improves the grading efficiency and accuracy of pepper seeds, and is suitable for the automatic screening needs of different varieties of seeds.

Description

Technical Field

[0001] This utility model relates to the field of agricultural technology, and in particular to a screening device for grading chili seeds. Background Technology

[0002] In the field of chili seed processing, insufficient screening precision has always been a key issue affecting seed grading. Traditional screening devices typically use single-layer fixed screens or manual sorting, which are difficult to adapt to the particle size differences of different chili seed varieties. Due to the varying sizes of chili seeds, screens with fixed apertures are prone to over-sieving (small particles mixing with large particles) or under-sieving (large particles remaining among small particles), severely impacting seed grading quality and the efficiency of subsequent breeding, packaging, and other processes. Furthermore, existing equipment lacks adjustable screening structures, making it impossible to flexibly adjust screen parameters according to different seed specifications, further limiting the accuracy and applicability of sorting.

[0003] In existing technologies, some screening equipment attempts to improve the sorting effect through vibrating screens or multi-layer screens, but problems such as easy screen clogging, uneven material flow, and low screening efficiency still exist. For example, if the amplitude and frequency of the vibrating screen are not properly adjusted, it may cause seeds to jump excessively or be incompletely screened; while if the tilt angle and driving method of the multi-layer screen are not designed properly, it may cause seed accumulation or unclear grading.

[0004] The patent "A Seed Screening Device" (application number CN201922488978.8, hereinafter referred to as Prior Art 1) discloses a seed screening device. Prior Art 1 achieves automated seed screening through devices such as a screening cylinder, separation tube, fan, and dust removal chamber, which can efficiently separate impurities and shriveled seeds. It is also equipped with a primary seed screening screen and a dust filtration system to further improve screening accuracy and dust removal effect. This design not only reduces manual intervention and significantly improves screening efficiency, but also greatly improves seed purity and germination rate, providing high-quality assurance for agricultural planting. However, Prior Art 1 only uses a primary screening screen, which still has certain limitations in its grading effect for chili seeds with large differences in particle size. Especially when multiple different sizes of chili seeds need to be processed simultaneously, a single screening screen is insufficient to meet diverse grading requirements. Utility Model Content

[0005] In view of this, the present invention provides a screening device for grading chili seeds, which solves the problem of over-sieving or under-sieving caused by a single fixed screen in the traditional technology.

[0006] This utility model provides a screening device for grading chili seeds, comprising: a frame with a feeding box; a screening mechanism inclined at a preset angle on the frame; and a drive mechanism disposed at the bottom of the frame for driving the screening mechanism. One end of the screening mechanism is hinged to the frame, and the other end is disposed on a limiting member. The screening mechanism has at least two outlets for chili seeds of different particle sizes. The drive mechanism is hinged to the screening mechanism disposed at one end of the limiting member via a drive shaft, and drives the screening mechanism to move within the range limited by the limiting member through the reciprocating motion generated by the drive shaft.

[0007] Preferably, the feed box is located at the top of the frame; the feed box is inverted conical in shape and has a storage bin inside.

[0008] Preferably, the feed box has a feed inlet on one side and a material gate cover for opening or closing the feed inlet; the material gate cover is plugged into the outside of the feed inlet.

[0009] Preferably, a guide plate is also provided at the bottom of the feed inlet.

[0010] Preferably, the screening mechanism includes a first screen and a second screen arranged at intervals; the first screen and the second screen are detachable; the first screen and the second screen have different screening apertures; the screening aperture of the first screen is larger than that of the second screen, so as to achieve grading and screening of the chili seeds.

[0011] Preferably, limiting plates are provided on both sides of the first and second screens and at one end near the feed box.

[0012] Preferably, the screening mechanism separates a first discharge chamber, a second discharge chamber, and a third discharge chamber through the first screen and the second screen.

[0013] Preferably, the first discharge chamber, the second discharge chamber, and the third discharge chamber are respectively provided with a first discharge section, a second discharge section, and a third discharge section at the end away from the feed box.

[0014] Preferably, the drive mechanism includes a drive motor and a driven wheel connected to the drive motor's output shaft via a belt; the driven wheel is mounted on a driven shaft on a driven frame of the machine frame; the driven shaft is mounted via a first bearing seat and a second bearing seat of the driven frame.

[0015] Preferably, the drive shaft is disposed on the driven shaft and reciprocates by the rotation of the driven shaft; one end of the driven shaft is hinged to the bottom of the screening mechanism.

[0016] The screening device for grading chili seeds provided by this utility model has the following beneficial effects:

[0017] This invention effectively solves the problem of over-sieving or under-sieving caused by fixed screens in traditional screening devices by adopting a detachable multi-layer screen structure and setting differentiated screening apertures for chili seeds of different particle sizes. The inclined screening mechanism, combined with the reciprocating motion of the drive shaft, not only ensures that the seeds are evenly distributed and fully screened on the screen surface, but also precisely controls the screen vibration range through limiting components, further improving the grading accuracy. In addition, the replaceable screen design allows the device to flexibly adapt to the particle size requirements of different varieties of chili seeds, significantly improving screening efficiency and adaptability, and providing reliable technical support for the automated grading and processing of chili seeds. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 This is a schematic diagram of a screening device used for grading chili seeds;

[0020] Figure 2 This is a side view of a screening device for grading chili seeds;

[0021] Figure 3 This is a cross-sectional structural diagram of a screening device used for grading chili seeds;

[0022] Figure 4 This is a schematic diagram of the structure of the first screen;

[0023] Parts and component numbers in the diagram:

[0024] 100-Frame, 110-Feed box, 111-Storage bin, 112-Feed inlet, 113-Material gate cover, 114-Guide plate, 120-Limiting component;

[0025] 200 - Screening mechanism, 210 - First screen, 211 - Screening section, 212 - Discharge section, 213 - Screen hole, 220 - Second screen, 221 - Limiting plate, 231 - First discharge chamber, 232 - Second discharge chamber, 233 - Third discharge chamber, 234 - First discharge part, 235 - Second discharge part, 236 - Third discharge part;

[0026] 310-Drive motor, 311-Driven pulley, 312-Belt, 320-Drive shaft, 331-First bearing housing. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0028] Example 1

[0029] Please see Figure 1 This utility model provides a screening device for grading chili seeds. In the field of chili seed processing, insufficient screening accuracy has always been a key issue affecting seed grading results. Traditional screening devices typically use a single-layer fixed screen or manual sorting, which is difficult to adapt to the particle size differences of different varieties of chili seeds. Due to the varying sizes of chili seeds, screens with fixed apertures are prone to over-sieving (small particles mixed with large particles) or under-sieving (large particles remaining among small particles), seriously affecting the grading quality of seeds and the efficiency of subsequent breeding, packaging, and other processes.

[0030] In addition, the existing equipment lacks an adjustable screening structure, making it impossible to flexibly adjust the screen parameters according to different seed specifications, which further limits the accuracy and applicability of the sorting.

[0031] Please see Figure 1 and Figure 2In this embodiment, the screening device for grading chili seeds includes a frame 100, a screening mechanism 200, and a driving mechanism. The frame 100 is provided with a feed box 110. The screening mechanism 200 is inclined at a preset angle on the frame 100. The driving mechanism is located at the bottom of the frame 100 and is used to drive the screening mechanism 200. One end of the screening mechanism 200 is hinged to the frame 100, and the other end is located on a limiting member 120. The screening mechanism 200 has at least two outlets for chili seeds of different particle sizes. The driving mechanism is hinged to the screening mechanism 200 located at one end of the limiting member 120 via a driving shaft 320, and drives the screening mechanism 200 to move within the range limited by the limiting member 120 through the reciprocating motion generated by the driving shaft 320.

[0032] Please see Figure 3 In use, the chili seeds to be graded are fed into the feed box 110, and the seeds slide down the inclined surface of the screening mechanism 200 under the action of gravity. The screening mechanism 200 is equipped with screen layers of different particle sizes. As the drive mechanism reciprocates through the drive shaft 320, the screening mechanism 200 vibrates accordingly under the restriction of the limiting member 120, causing the seeds to be screened on the screens. Seeds of different particle sizes are screened out separately as they pass through each screen layer and discharged from the corresponding chili seed outlet. This design not only improves the screening accuracy but also allows the number and particle size of the screen layers to be adjusted according to actual needs, enhancing the flexibility and applicability of the device.

[0033] The main function of the limiting component 120 is to provide a reliable support point for the screening mechanism 200. When screening is not required, one end of the screening mechanism 200 will be in close contact with the limiting component 120, thus obtaining necessary support and ensuring the stability and safety of the screening mechanism 200. When screening is required, the limiting component 120 restricts the range of motion of the screening mechanism 200, ensuring that the screening mechanism 200 performs effective screening within a specified area. In addition, the limiting component 120 is designed to be mounted on the frame 100. This design not only facilitates the installation and disassembly of the screening mechanism 200, but also ensures the structural stability and operational convenience of the entire screening equipment.

[0034] Further, please see Figure 1The feeding box 110 is located on the top of the frame 100. The feeding box 110 is inverted conical in shape and has a storage bin 111 inside. The top of the storage bin 111 has an opening for putting in chili seeds. One side of the feeding box 110 has a feeding port 112 and a material gate cover plate 113 for opening or closing the feeding port 112. The material gate cover plate 113 is plugged into the outside of the feeding port 112. The bottom of the feeding port 112 is also provided with a guide plate 114.

[0035] In use, the user can pour the chili seeds to be graded into the storage hopper 111 through the opening at the top of the storage hopper 111. After the seeds accumulate in the storage hopper 111, the opening between the material gate cover plate 113 and the discharge port is controlled to allow the chili seeds to be discharged smoothly; and they are then evenly guided onto the inclined surface of the screening mechanism 200 by the guide plate 114. The design of the guide plate 114 helps to control the seed flow rate, ensuring that the seeds can enter the screening process smoothly and continuously, avoiding poor screening results caused by seed accumulation or sudden release. At the same time, the inverted conical feed box 110 design allows the seeds to flow more smoothly into the storage hopper 111, reducing seed blockage and accumulation, and improving the working efficiency of the entire screening device.

[0036] Please see Figure 1 and Figure 3 The screening mechanism 200 includes a first screen 210 and a second screen 220 arranged at intervals; the first screen 210 and the second screen 220 are detachably configured; the first screen 210 and the second screen 220 have different screening apertures; the screening aperture of the first screen 210 is larger than that of the second screen 220, so as to achieve grading and screening of the chili seeds. Limiting plates 221 are provided on both sides of the first screen 210 and the second screen 220 and at one end near the feed box 110.

[0037] In operation, the chili seeds are guided by the guide plate 114 and first come into contact with the first screen 210. Due to the sieve aperture setting of the first screen 210, smaller chili seeds are allowed to pass through, while larger seeds are retained above the screen. In this way, the chili seeds are initially graded according to size. Subsequently, the larger seeds that can pass through the first screen 210 continue to slide onto the second screen 220. The second screen 220 has a smaller sieve aperture, which can further sieve out even finer chili seeds. Through the grading of the two-stage screens, the chili seeds are effectively separated into different size grades.

[0038] The design of the limiting plates 221 ensures the stability of the screen during the screening process. They not only prevent seeds from falling from the sides but also guide the seeds downwards along the inclined surface of the screen, ensuring continuous and uniform screening. Furthermore, the detachable screen design allows users to easily replace screens with different sieve apertures as needed, thereby adjusting the grading standards and increasing the flexibility and applicability of the equipment.

[0039] Further, please see Figure 3 The screening mechanism 200 divides the material into a first discharge chamber 231, a second discharge chamber 232, and a third discharge chamber 233 by the first screen 210 and the second screen 220. The first discharge chamber 231, the second discharge chamber 232, and the third discharge chamber 233 are respectively provided with a first discharge section 234, a second discharge section 235, and a third discharge section 236 at the end away from the feed box 110.

[0040] In operation, the chili seeds are sieved and then enter three discharge chambers. The first discharge chamber 231 collects the largest seeds remaining after two stages of sieve selection; these seeds are discharged through the first discharge section 234 and can be used for chili varieties requiring larger seeds. The second discharge chamber 232 collects medium-sized seeds that pass through the first sieve 210 but remain on the second sieve 220; these seeds are discharged through the second discharge section 235 and are suitable for medium-sized chilies. The third discharge chamber 233 collects the smallest seeds that pass through the second sieve 220; these seeds are discharged through the third discharge section 236 and are typically used for small or slender chili varieties. Each discharge section is designed to be efficient and easy to operate, ensuring smooth discharge of the chili seeds without clogging or mixing. This design significantly improves sieving efficiency and accuracy, providing users with a more convenient and flexible seed grading solution.

[0041] Furthermore, the drive mechanism includes a drive motor 310 and a driven wheel 311 connected to the drive wheel on the output shaft of the drive motor 310 via a belt 312; the driven wheel 311 is mounted on a driven shaft on a driven frame on the frame 100; the driven shaft is mounted via a first bearing seat 331 and a second bearing seat on the driven frame. The drive shaft 320 is mounted on the driven shaft and reciprocates through the rotation of the driven shaft; one end of the driven shaft is hinged to the bottom of the screening mechanism 200.

[0042] In operation, after the drive motor 310 starts, its output shaft drives the drive wheel to rotate, and the drive wheel drives the driven wheel 311 via the belt 312. The driven wheel 311 is mounted on the driven shaft, which is securely mounted on the driven frame on the frame 100. The stability and smoothness of rotation are ensured by the first bearing seat 331 and the second bearing seat. As the driven shaft rotates, the drive shaft 320 also begins to reciprocate, and this motion is transmitted through the rotation of the driven shaft. One end of the drive shaft 320 is hinged to the bottom of the screening mechanism 200. Therefore, when the drive shaft 320 reciprocates, the screening mechanism 200 will also perform up-and-down or back-and-forth screening actions accordingly, allowing the chili seeds in the screening mechanism 200 to follow this action for screening. This drive mechanism design is not only compact in structure but also has high transmission efficiency, ensuring the continuity and stability of the screening work and improving the overall screening effect and efficiency.

[0043] Example 2

[0044] Please see Figure 1 and Figure 4 This utility model provides a screening device for grading chili seeds. In embodiment 1, the only difference between the first screen 210 and the second screen 220 is the size of the aperture. This may result in chili seeds falling directly from the first screen 210 to the second discharge section 235 when the chili seeds are screened near the discharge section of the first screen 210, causing the chili seeds to be discharged without being screened by the second screen 220. This would reduce the accuracy and effectiveness of the screening.

[0045] To solve this problem, the existing technology adds a screen to the end of the first screen 210 and the second screen 220 near the discharge part. This screen filters out the chili seeds that may fall from the first screen 210 to the second discharge part 235. However, this leads to increased costs and unnecessary waste.

[0046] Please see Figure 4 In this embodiment, by providing a first screen 210 with a screening section and a discharge end, the chili seeds cannot fall directly into the second discharge end 235 from the end of the first screen 210 near the discharge end. Instead, the chili seeds are screened by both the first screen 210 and the second screen 220 before being discharged, thus improving the screening accuracy and effectiveness. Furthermore, the screening device in this embodiment eliminates the need for additional screens, reducing costs and avoiding unnecessary waste.

[0047] Furthermore, the first screen 210 includes a screening section 211 and a discharge section 212. The screening section 211 is provided with screen holes 213, while the discharge section is not provided with screen holes 213. The discharge section 212 is located at one end near the discharge section.

[0048] In use, chili seeds are sieved through a screening section. Smaller seeds pass through the sieve holes and fall onto a second sieve 220 for further screening, while larger seeds continue to move along the first sieve 210 to the discharge section 212. Since the discharge section 212 does not have sieve holes 213, the chili seeds cannot fall directly from this section; instead, they move along the discharge section 212 and are discharged directly through the first discharge part 234. Seeds screened by the first sieve 210 and the second sieve 220 are discharged through their respective discharge parts. This design not only improves the accuracy and effectiveness of screening but also avoids the cost and waste associated with adding extra sieves. Furthermore, the screening device in this embodiment has a simple structure, is easy to operate and maintain, and is suitable for screening chili seeds of various sizes.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A screening device for the classification of pepper seeds, characterized in that, include: The frame (100) is equipped with a feed box (110); The screening mechanism (200) is inclined at a preset angle on the frame (100); the driving mechanism includes a drive motor (310) which is located at the bottom of the frame (100) and is used to drive the screening mechanism (200). One end of the screening mechanism (200) is hinged to the frame (100), and the other end is set on the limiting member (120); and the screening mechanism (200) is provided with at least two outlets for chili seeds of different particle sizes; The driving mechanism is hinged to the screening mechanism (200) located at one end of the limiting member (120) via the driving shaft (320), and drives the screening mechanism (200) to move within the range limited by the limiting member (120) through the reciprocating motion generated by the driving shaft (320).

2. A screening device for grading of chilli seeds as claimed in claim 1 wherein, The feed box (110) is located on the top of the frame (100); the feed box (110) is inverted conical and has a storage bin (111) inside.

3. A screening device for grading chili seeds according to claim 2, characterized in that, The feed box (110) is provided with a feed inlet (112) on one side and a material gate cover (113) for opening or closing the feed inlet (112). The feed gate cover (113) is plugged into the outside of the feed inlet (112).

4. A screening device for grading chili seeds according to claim 3, characterized in that, The bottom of the feed inlet (112) is also provided with a guide plate (114).

5. A screening device for grading chili seeds according to claim 1, characterized in that, The screening mechanism (200) includes a first screen (210) and a second screen (220) arranged at intervals. The first screen (210) and the second screen (220) are detachable. The first screen (210) and the second screen (220) are provided with different sieving apertures; The sieve aperture of the first screen (210) is larger than that of the second screen (220) to achieve grading and sieving of the chili seeds.

6. A screening device for grading chili seeds according to claim 5, characterized in that, Limiting plates (221) are provided on both sides of the first screen (210) and the second screen (220) and at one end near the feed box (110).

7. A screening device for grading chili seeds according to claim 5, characterized in that, The screening mechanism (200) separates the first discharge chamber (231), the second discharge chamber (232) and the third discharge chamber (233) through the first screen (210) and the second screen (220).

8. A screening device for grading chili seeds according to claim 7, characterized in that, The first discharge chamber (231), the second discharge chamber (232), and the third discharge chamber (233) are respectively provided with a first discharge section (234), a second discharge section (235), and a third discharge section (236) at the end away from the feed box (110).

9. A screening device for grading chili seeds according to claim 1, characterized in that, The drive mechanism includes a drive motor (310) and a driven pulley (311) connected to the drive pulley on the output shaft of the drive motor (310) via a belt (312). The driven wheel (311) is disposed on the driven shaft on the driven frame on the frame (100); The driven shaft is mounted via the first bearing seat (331) and the second bearing seat of the driven frame.

10. A screening device for grading chili seeds according to claim 9, characterized in that, The drive shaft (320) is mounted on the driven shaft and reciprocates through the rotation of the driven shaft; One end of the driven shaft is hinged to the bottom of the screening mechanism (200).

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