Rice quality detecting and screening device

Abstract

The utility model discloses a rice quality detecting and screening device which comprises a frame, a feeding unit and a discharging unit which are internally provided with conveying belts are arranged above the front end and below the rear end of the frame respectively, and the bottoms of the two ends of the frame are connected with supporting columns with different heights through supporting springs. A feeding unit is arranged on the frame, a front weight sensor is arranged below the feeding unit, a mounting seat is arranged above the feeding unit, an image collector is arranged on the lower side of the mounting seat, capacitive moisture sensors are distributed on the feeding unit, and a vibration motor is mounted on the frame. The screening machine is scientific and reasonable in structural design, achieves the physical screening function, improves the screening automation degree through linkage of vibration screening and the conveying mechanism, calculates the weight ratio of screened wizened particles and impurities according to the structural cooperation of the front weight sensor, the rear weight sensor, the feeding unit and the discharging unit and the difference value between the front weight sensor and the rear weight sensor. The rice plumpness and impurity content are quantified, and data support is provided for quality evaluation.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice detection equipment technical field, concretely is a kind of rice quality detection screening device. BACKGROUND

[0002] Rice needs to be detected in the screening process, and the rice quality detection equipment on the market currently is mostly independently arranged for detection (such as moisture, appearance) and screening (such as mechanical screening), which requires manual transfer of materials, resulting in disconnection between detection data and screening actions, and manual operation is prone to errors. For example, the traditional screening device can only grade by particle size through fixed screen, and cannot accurately screen in combination with multi-dimensional data such as moisture content and breakage rate, so the quality evaluation is highly subjective. In addition, the existing equipment lacks a real-time weight detection module, and it is difficult to accurately calculate the proportion of hollow particles and impurities screened out, so it is impossible to objectively evaluate the fullness of rice and the removal rate of impurities. For example, relying solely on visual judgment of screening results leads to mixing of unqualified particles in superior products or excessive rejection of qualified products, resulting in resource waste. Therefore, we propose a rice quality detection screening device. SUMMARY

[0003] The utility model aims at providing a kind of rice quality detection screening device to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of rice quality detection screening device, including frame, the front end of the frame upper and rear end lower are respectively provided with the feed unit and discharge unit of built-in conveying belt, the bottom of the frame both ends is connected with the support column of different height by support spring, the front weight sensor is provided below the feed unit, the mounting seat is provided above the feed unit, the image collector is provided in the lower side of mounting seat, the capacitive moisture sensor is distributed on the feed unit, the vibration motor is installed on the frame, the protective cover is detachably installed on the frame, the screen plate is installed in the frame, the elastic buckle is provided on the side of screen plate, the elastic buckle is correspondingly clamped in the limit slot in the inner side of frame, the material receiving box with top opening is provided below the frame, the support plate is detachably installed in the material receiving box, and the rear weight sensor is provided below the support plate.

[0005] In the above scheme, the front weight sensor is installed on the top of fixed column.

[0006] In the above scheme, the light supplementing lamp is installed on the mounting seat, and the mounting seat is fixedly connected with the fixed column through connecting rod.

[0007] In the above scheme, the bottom of the protective cover is provided with clamping block, and the clamping block is correspondingly clamped in the clamping groove opened in the outer wall of frame.

[0008] The image collector is electrically connected with the controller.

[0009] The vibration motor is connected with the power supply through a wire.

[0010] The edge of the material receiving box is connected with the frame through a cloth belt.

[0011] Compared with the prior art, the rice quality detection and screening device has the advantages that the structure design is simple and reasonable, and has strong practicability, the layered water rice on the screen plate is generated due to vibration in the conveying process, the light and small materials such as dry particles and impurities fall into the lower material receiving box through the screen plate holes, the physical screening function is realized, the vibration screening and the conveying mechanism are linked, the screening automation degree is improved, the front weight sensor detects the water rice weight at the feeding end in real time, the rear weight sensor detects the material weight at the discharging end after screening, the weight proportion of the dry particles and impurities screened out is calculated through the difference between the two, the water rice fullness and impurity content are quantified, data support is provided for quality evaluation, the image collector is installed above the feeding unit, the appearance image of the water rice is collected in cooperation with the fill light, the capacitive moisture sensor is distributed on the surface of the feeding unit, and the moisture content is detected in real time, a multi-dimensional detection system is formed, and the quality detection comprehensiveness is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a side structure schematic view of the utility model.

[0013] Fig. 2 It is a screen plate installation structure schematic view of the utility model.

[0014] Fig. 3 It is a material receiving box internal structure schematic view of the utility model.

[0015] In the drawing: 1, frame 11, feeding unit 12, discharging unit 13, support spring 14, support column 15, front weight sensor 16, fixed column 17, mounting seat 18, image collector 19, fill light 2, connecting rod 21, capacitive moisture sensor 22, vibration motor 23, protective cover 24, clamping block 25, clamping groove 26, screen plate 27, elastic buckle 28, limiting groove 29, material receiving box 3, support plate 31, rear weight sensor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0017] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a rice quality detection screening device, including frame 1, the front end of the frame 1 upper and rear end lower are respectively provided with built-in conveying belt's feeding unit 11 and discharge unit 12, the bottom of the frame 1 both ends is connected with support column 14 of different heights by support spring 13, the front weight sensor 15 is provided below the feeding unit 11, the upper of the feeding unit 11 is provided with mounting seat 17, the mounting seat 17 lower side is provided with image collector 18, the feeding unit 11 is distributed with capacitive moisture sensor 21, vibration motor 22 is installed on the frame 1, protective cover 23 is detachably installed on the frame 1, screen plate 26 is installed in the frame 1, the side of the screen plate 26 is provided with elastic buckle 27, the elastic buckle 27 is correspondingly clamped in the limit slot 28 inside frame 1, the bottom of the frame 1 is provided with the open top receiving box 29, support plate 3 is detachably installed in the receiving box 29, rear weight sensor 31 is provided below the support plate 3.

[0018] Frame 1 is connected with support column 14 of different heights by support spring 13, cooperate vibration motor 22 can make frame produce regular vibration, drive screen plate 26 to vibrate and screen, so that dry particle, impurity and other light and small materials fall into receiving box 29 through screen plate hole, solve the problem that traditional screening device relies on fixed screen, low separation efficiency, realize automatic classification screening.

[0019] Front weight sensor 15 detects the weight of rice at feeding end in real time, rear weight sensor 31 detects the weight of rice at discharge end (after screening), and the weight proportion of impurities and dry particles screened by the difference between the two is quantified, which provides data support for quality evaluation and avoids manual estimation error, improving detection accuracy.

[0020] Image collector 18 and capacitive moisture sensor 21 are integrated in feeding unit 11, and rice appearance (grain type, breakage rate) and moisture content data are obtained respectively, forming a multidimensional detection system, solving the limitation of single index detection, meeting the comprehensive evaluation demand of rice quality.

[0021] The detachable design of the sieve plate 26 through the elastic buckle 27 and the limiting groove 28 and the protective cover 23 through the clamping block 24 and the clamping groove 25 facilitates quick replacement of the sieve plate (adapted to the sieve hole requirements of different varieties of rice) and maintenance, and improves the universality and ease of use of the device.

[0022] In the above scheme, the front weight sensor 15 is installed at the top of the fixed column 16. The fixed column 16 supports the front weight sensor 15, ensures stable detection of the weight of the rice conveyed by the feeding unit 11, avoids interference of the detection data by the vibration of the conveying belt, guarantees the weight detection accuracy, and provides a reliable data basis for subsequent screening effect quantitative analysis.

[0023] In the above scheme, the mounting seat 17 is provided with a light supplementing lamp 19, and the mounting seat 17 is fixedly connected with the fixed column 16 through a connecting rod 2. The light supplementing lamp 19 cooperates with the image collector 18 to provide uniform illumination, eliminates the shadow and reflection of the rice particles, improves the image collection clarity, and ensures the accuracy of the appearance detection (such as chalkiness and breakage rate); the connecting rod 2 connects the mounting seat 17 with the fixed column 16, stabilizes the position of the image collector, avoids image blur caused by vibration, and solves the problems of uneven illumination and large image recognition error of the existing device.

[0024] In the above scheme, the bottom of the protective cover 23 is provided with a clamping block 24, and the clamping block 24 is correspondingly clamped in the clamping groove 25 opened on the outer wall of the frame 1. The clamping structure of the clamping block 24 and the clamping groove 25 realizes quick disassembly and assembly of the protective cover 23, solves the problems of complicated maintenance and time-consuming of the traditional device, and improves the equipment maintenance efficiency.

[0025] In the above scheme, the image collector 18 is electrically connected with the controller. The image collector 18 transmits the appearance image of the rice to the controller, analyzes the parameters such as the grain type and the breakage rate through the built-in algorithm (such as edge detection and color recognition), and realizes intelligent control of detection and screening in linkage with the data of the moisture sensor.

[0026] In the above scheme, the vibration motor 22 is connected with the power supply through wires. The vibration motor 22 drives the frame 1 to vibrate after being powered on, and the vibration frequency and amplitude can be adjusted through the power supply parameters, which is suitable for the screening requirements of different varieties of rice (such as japonica rice particles are larger, which requires low frequency vibration; indica rice particles are smaller, which requires high frequency vibration), solves the problem of poor adaptability of the fixed sieve, and improves the screening efficiency and universality.

[0027] In the above scheme, the edge of the material receiving box 29 is connected with the frame 1 through a cloth belt. The flexible connection of the cloth belt reduces the rigid collision noise when the vibration motor works, prevents impurities from splashing during the screening process, and keeps the working environment clean; the cloth belt can swing synchronously with the frame, avoiding displacement of the material receiving box due to vibration, and ensuring the stability of impurity collection.

[0028] Working principle:

[0029] The rice quality detection and screening device includes the following processes when in use: the rice is conveyed into the frame 1 by the conveying belt of the feeding unit 11, the conveying belt speed is stabilized at 0.3-0.5 m / s, the uniform distribution of the single layer of the rice is ensured, the image collector 18 collects the appearance image of the rice under the irradiation of the light supplement lamp 19, the parameters such as the grain type (length, width), the damage rate and the like are identified, the data is transmitted to the controller in real time, the capacitive moisture sensor 21 is embedded into the surface of the feeding unit 11, the moisture content is obtained in real time by detecting the dielectric constant change of the rice, after the vibration motor 22 is powered on, the frame 1 is driven to vibrate up and down along the supporting spring 13, the sieve plate 26 is synchronously vibrated, the rice is layered on the sieve plate 26 due to the vibration: the full particles are moved along the sieve plate to the discharging unit 12 due to the large weight and strong inertia; the small and dry particles and impurities are light in weight, fall into the lower receiving box 29 through the sieve plate holes in the vibration, the sieve plate 26 is clamped with the limiting groove 28 of the frame 1 through the elastic buckle 27, different aperture sieve plates can be quickly replaced, the screening requirements of different varieties such as japonica rice and indica rice are adapted, the front weight sensor 15 is installed below the feeding unit 11, the total weight of the rice at the feeding end is detected in real time, the rice flow and the initial fullness are reflected, the rear weight sensor 31 is located below the supporting plate 3 in the receiving box 29, the weight of the impurities and the dry particles falling into the receiving box after screening is detected, the weight difference before and after screening is calculated through the controller, the impurity removal rate and the fullness index are obtained, the data support is provided for the quality grading, the qualified rice after screening is output through the conveying belt of the discharging unit 12 and enters the next process.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rice quality detection and screening device comprising a frame (1), characterized in that: The front end of the frame (1) is provided with an internal conveying belt feeding unit (11) and a discharging unit (12) below the rear end, the bottom of both ends of the frame (1) is connected with support columns (14) with different heights through support springs (13), the front of the feeding unit (11) is provided with a front weight sensor (15), the top of the feeding unit (11) is provided with a mounting seat (17), the lower side of the mounting seat (17) is provided with an image collector (18), the feeding unit (11) is distributed with capacitive moisture sensors (21), the frame (1) is installed with a vibration motor (22), the frame (1) is detachably installed with a protective cover (23), the frame (1) is installed with a sieve plate (26), the side of the sieve plate (26) is provided with an elastic buckle (27), the elastic buckle (27) is correspondingly clamped in the limiting groove (28) on the inner side of the frame (1), the bottom of the frame (1) is provided with a top opening receiving box (29), the receiving box (29) is detachably installed with a support plate (3), the bottom of the support plate (3) is provided with a rear weight sensor (31).

2. The rice quality detection and screening device according to claim 1, characterized in that: The front weight sensor (15) is installed on the top of the fixed column (16).

3. The rice quality detection and screening device according to claim 2, characterized in that: The mounting seat (17) is installed with a light supplementing lamp (19), and the mounting seat (17) is fixedly connected with the fixed column (16) through the connecting rod (2).

4. The rice quality detection and screening device according to claim 1, characterized in that: The bottom of the protective cover (23) is provided with a clamping block (24), and the clamping block (24) is correspondingly clamped in the clamping groove (25) formed in the outer wall of the frame (1).

5. The rice quality detection and screening device according to claim 1, characterized in that: The image collector (18) is electrically connected with the controller.

6. The rice quality detection and screening device according to claim 1, characterized in that: The vibration motor (22) is connected with the power supply through the wire.

7. The rice quality detection and screening device according to claim 1, characterized in that: The edge of the receiving box (29) is connected with the frame (1) through the cloth belt.

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