Pellet feed granularity detection device and method

Abstract

The invention provides a pellet feed granularity detection device and method, and belongs to the field of feed processing. The device comprises a discharging mechanism, a rectifying plate, a linear electromagnetic vibrator and an image recognition mechanism, the discharging mechanism comprises a discharging box, the discharging box is of a box-shaped structure with the two ends open, the discharging box is vertically arranged above the rectifying plate, the rectifying plate is of a square structure, and an acute angle is formed between the rectifying plate and the horizontal plane; the rectifying plate is provided with an arc-shaped sliding groove matched with the particle size of a to-be-detected pellet feed in the length direction, the linear electromagnetic vibrator is arranged at the bottom of the rectifying plate, the image recognition mechanism comprises an industrial camera, and the industrial camera is arranged above the rectifying plate and used for shooting images of the to-be-detected pellet feed on the arc-shaped sliding groove. By adopting the pellet feed particle size detection device and method provided by the embodiment of the invention, the problems of relatively low detection efficiency and relatively low accuracy in the prior art can be solved.

Description

Technical Field

[0001] The invention relates to the field of feed processing, and in particular to a device and method for detecting particle size of pellet feed. Background Art

[0002] The particle size and distribution of pellet feed are one of the basic indicators reflecting the physical properties of pellet feed. The determination of its particle size has an important impact on the subsequent processing process of feed, product quality and livestock and poultry production performance.

[0003] In the prior art, the physical properties of pellet feed are mainly tested by manual sampling, such as screening method, sedimentation method, etc. The above detection methods are cumbersome to operate, with low automation level, and can only sample and detect parameters of some pellet feeds, resulting in low accuracy of the detection structure.

[0004] The particle size detection method of pellet feed in the prior art uses manual sampling, resulting in low detection efficiency and low accuracy. Summary of the invention

[0005] The embodiment of the present invention provides a device and method for detecting particle size of pellet feed, which can solve the problems of low detection efficiency and low accuracy in the prior art. The technical solution is as follows:

[0006] In a first aspect, a pellet feed particle size detection device comprises: a feeding mechanism, a rectifying plate, a linear electromagnetic vibrator and an image recognition mechanism,

[0007] The feeding mechanism comprises a feeding box, which is a box-shaped structure with two ends opened. The feeding box is vertically arranged above the rectifying plate. The rectifying plate is a square structure and is arranged at an acute angle to the horizontal plane. The rectifying plate is provided with an arc-shaped chute matching the granular feed to be tested along the length direction.

[0008] The linear electromagnetic vibrator is arranged at the bottom of the rectifier plate.

[0009] The image recognition mechanism comprises an industrial camera, which is arranged above the rectifier plate and is used to capture the image of the particle feed to be tested on the arc chute.

[0010] Optionally, a plurality of arc-shaped slide grooves are provided on the rectifier plate, and the plurality of arc-shaped slide grooves are arranged in parallel along the width direction of the rectifier plate.

[0011] Optionally, the arc-shaped slide grooves are distributed in the lower half of the rectifier plate, and a plurality of diverter plates are vertically arranged on the upper half of the rectifier plate, and the plurality of diverter plates are arranged at intervals along the width direction of the rectifier plate.

[0012] Optionally, the diverter plates are arranged in multiple rows along the length direction of the rectifier plates, and the rectifier plates in the multiple rows are staggered.

[0013] Optionally, baffles are provided on both sides of the arc-shaped slide groove along the direction of the arc-shaped slide groove, and the baffles are located in the upper half of the arc-shaped slide groove.

[0014] Optionally, the feeding mechanism comprises a screw feeder, the screw feeder is located between the feeding box and the rectifying plate, and the screw feeder is used to control the particle feed to be tested in the feeding box to fall evenly.

[0015] Optionally, the image recognition mechanism includes a bar light source, and the bar light source is arranged on both sides of the industrial camera.

[0016] Optionally, the image recognition mechanism includes a guide rail, which is arranged along the length direction of the rectifier plate, and the industrial camera is slidably disposed on the guide rail.

[0017] Optionally, a material receiving box is further included, and the material receiving box is connected to the rear end of the rectifier plate.

[0018] In a second aspect, a method for detecting particle size of a pellet feed includes the aforementioned structure of the device for detecting particle size of a pellet feed, and includes the following steps:

[0019] Step 1: According to the pellet feed to be tested, adjust the angle between the rectifier plate and the horizontal plane, and add the pellet feed to be tested into the feed box;

[0020] Step 2: Turn on the linear electromagnetic vibrator to make the pellet feed to be tested evenly fall into the arc chute and slowly slide toward the tail end of the rectifier plate;

[0021] Step 3: The image of the pellet feed to be tested on the arc chute is photographed by the industrial camera, and transmitted to an external computer for image recognition, and physical characteristic parameters such as the major diameter, minor diameter and particle size distribution of the pellet feed to be tested are recorded.

[0022] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0023] The embodiment of the present invention provides a particle size detection device and method for pellet feed, which allows the pellet feed to be tested to drop onto a rectifier plate through a feeding mechanism, and uses a linear electromagnetic vibrator to evenly drop the pellet feed to be tested accumulated in a feeding box onto an arc chute of the rectifier plate. By adjusting the vibration frequency and amplitude of the linear electromagnetic vibrator and the inclination of the rectifier plate, the pellet feed to be tested on the arc chute slowly slides downward in the direction of the arc chute at a certain interval, and then an industrial camera is used to capture an image of the pellet feed to be tested on the arc chute, which is transmitted to an external computer for image recognition, and physical characteristic parameters such as the major diameter, minor diameter and particle size distribution of the pellet feed to be tested are recorded, which can effectively solve the problems of low detection efficiency and low accuracy in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 is a schematic diagram of the overall structure of a detection device provided by an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of a rectifier plate provided in an embodiment of the present invention;

[0027] Figure 3 is a cross-sectional schematic diagram of a spiral feeder provided in an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of the structure of an image recognition mechanism provided by an embodiment of the present invention;

[0029] Figure 5 It is a flow chart of the detection method provided by an embodiment of the present invention.

[0030] In the figure: 1-feeding mechanism; 11-feeding box; 12-screw feeder; 121-fan blades; 122-housing; 123-axial center hole; 124-feeding port; 125-discharging port; 13-synchronous motor; 2-rectifier plate; 21-arc chute; 22-diverter plate; 23-baffle; 3-DC electromagnetic vibrator; 4-image recognition mechanism; 41-industrial camera; 42-bar light source; 43-guide rail; 5-receiving box; 6-box; 61-feeding port. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Figure 1 is a schematic diagram of the overall structure of a detection device provided by an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of a rectifier plate provided in an embodiment of the present invention; Figure 3 is a cross-sectional schematic diagram of a spiral feeder provided in an embodiment of the present invention; Figure 4 is a schematic diagram of the structure of an image recognition mechanism provided by an embodiment of the present invention; Figure 5 : is a flow chart of the detection method provided by an embodiment of the present invention. Figures 1 to 5 A particle feed particle size detection device shown in the figure includes: a feeding mechanism 1, a rectifier plate 2, a linear electromagnetic vibrator 3 and an image recognition mechanism 4, the feeding mechanism 1 includes a feeding box 11, the feeding box 11 is a box-shaped structure with openings at both ends, the feeding box 11 is vertically arranged above the rectifier plate 2, the rectifier plate 2 is a square structure, and is arranged at an acute angle to the horizontal plane, the rectifier plate 2 is provided with an arc chute 21 matching the particle feed to be tested along the length direction, the linear electromagnetic vibrator 3 is arranged at the bottom of the rectifier plate 2, the image recognition mechanism 4 includes an industrial camera 41, the industrial camera 41 is arranged above the rectifier plate 2, and the industrial camera 41 is used to capture the image of the particle feed to be tested on the arc chute 21.

[0033] Exemplarily, in the embodiment of the present invention, a box body 6 is also included, and the entire device can be structurally fixed by a bracket, or fixed inside a box body 6 to protect the entire device. In this embodiment, the fixing form of the box body 6 is adopted, the linear electromagnetic vibrator 3 is set at the bottom of the box body 6, and the head end of the rectifier plate 2 is set on the linear electromagnetic vibrator 3 for fixing. The feed box 11 is a box-shaped structure with two ends open. A feed port 61 is opened at the top of the box body 6. One end of the feed box 11 is connected to the feed port 61, and the other end of the feed box 11 is aligned with the head end of the rectifier plate 2. The distance between the outlet of the feed box 11 and the rectifier plate 2 is maintained at two to three times the particle size of the granular feed to be tested. When the feed box 11 is loaded After a certain amount of the granular feed to be tested is put in, it will accumulate between the outlet of the feed box 11 and the rectifier plate 2. At this time, the linear electromagnetic vibrator 3 is turned on to make the granular feed to be tested in the feed box 11 fall evenly and slowly, and fall onto the arc chute 21 on the rectifier plate 2. There can be multiple rectifier plates 2, and the curvature of the arc chute 21 on each rectifier plate 2 is different. When detecting different granular feeds to be tested, the arc chute 21 that matches the particle size of the granular feed to be tested can be selected, so that the granular feed to be tested can slide smoothly on the arc chute 21. The inclination angle of the rectifier plate 2, the vibration frequency and amplitude of the linear electromagnetic vibrator 3 are all the optimal working parameter combinations obtained by simulating and optimizing the working process through the previous simulation software, to ensure that the granular feed to be tested can slide slowly downward in the arc chute 21 at a certain interval in the arc chute 21 along the direction of the arc chute 21. At this time, the pellet feed to be tested sliding on the arc chute 21 is photographed by the industrial camera 41 arranged at the top of the box body 6. The industrial camera 41 can be connected to an external computer through a USB3.0 interface. The industrial camera 31 transmits the photographed image to the external computer. The external computer automatically collects the image and automatically outputs the physical characteristic parameters such as the long diameter, short diameter and particle size distribution of the current pellet feed sample to be tested after image processing, and records and stores them for later query. Compared with the traditional technology, manual sampling and testing of a batch of pellet feed has low detection efficiency, and the accuracy of the detection result is low due to sampling detection. The pellet feed particle size detection device in the embodiment of the present invention can perform a full detection on a batch of pellet feed, so that the detection result is more accurate, and through the cooperation of the image recognition mechanism and the external computer, multiple physical parameters of the pellet feed can be quickly identified and recorded, thereby improving the monitoring efficiency of the pellet feed particle size detection device.

[0034] The embodiment of the present invention provides a particle size detection device and method for pellet feed, which drops the pellet feed to be tested onto the rectifier plate 2 through a feeding mechanism 1, and uniformly drops the pellet feed to be tested accumulated in the feeding box 11 into the arc chute 21 of the rectifier plate 2 through a linear electromagnetic vibrator 3. By adjusting the vibration frequency and amplitude of the linear electromagnetic vibrator 3 and the inclination of the rectifier plate 2, the pellet feed to be tested on the arc chute 21 slowly slides downward in a certain interval along the direction of the arc chute 21, and then an industrial camera 41 is used to capture an image of the pellet feed to be tested on the arc chute 21, and transmits it to an external computer for image recognition, and records the physical characteristic parameters of the pellet feed to be tested, such as the major axis, minor axis and particle size distribution, which can effectively solve the problems of low detection efficiency and low accuracy in the prior art.

[0035] Optionally, a plurality of arc-shaped slide grooves 21 are provided on the rectifier plate 2 , and the plurality of arc-shaped slide grooves 21 are arranged in parallel along the width direction of the rectifier plate 2 .

[0036] Illustratively, in an embodiment of the present invention, by providing a plurality of arc-shaped chutes 21, the granular feed to be tested accumulated at the outlet of the feed box can be diverted into different arc-shaped chutes 21, so that the industrial camera 41 can have more granular feed to be tested in each image taken, so that more granular feed to be tested can be identified and detected at one time, thereby further improving the detection efficiency of the granular feed particle size detection device.

[0037] Optionally, the arc-shaped slide grooves 21 are distributed in the lower half of the rectifying plate 2 , and a plurality of diverter plates 22 are vertically arranged on the upper half of the rectifying plate 2 , and the plurality of diverter plates 22 are arranged at intervals along the width direction of the rectifying plate 2 .

[0038] For example, in the embodiment of the present invention, the rectifier plate 2 is divided into two halves, a plurality of diverter plates 22 are vertically arranged on the upper half, and an arc chute 21 is arranged on the lower half, so that a large amount of pellet feed to be tested is diverted in advance after falling onto the rectifier plate 2 before entering the arc chute 21, and the horizontal pellet feed at the entrance of the arc chute 21 is transformed into the pellet feed along the length direction of the arc chute 21, so that the pellet feed enters the arc chute 21 more stably. By setting the diverter plate 22, the stability of the pellet feed particle size detection device is improved.

[0039] Optionally, the splitter plates 22 are arranged in multiple rows along the length direction of the rectifier plates 2 , and the multiple rows of rectifier plates 2 are staggered.

[0040] Illustratively, in an embodiment of the present invention, by providing multiple rows of diverter plates 22, the particle feed to be tested that falls onto the rectifier plate 2 can be further diverted to prevent the particle feed to be tested from being blocked when entering the arc chute 21, thereby further improving the stability of the particle feed particle size detection device.

[0041] Optionally, baffles 23 along the direction of the arcuate chute 21 are provided on both sides of the arcuate chute 21 , and the baffles 23 are located in the upper half of the arcuate chute 21 .

[0042] For example, in an embodiment of the present invention, Figure 2 As shown, taking the line A of the arc chute 21 as the decomposition, the side close to the diverter plate 22 is the upper half of the arc chute 21. By arranging baffles 23 on both sides of the arc chute 21, it is prevented that the particle feed to be tested slides from both sides on the arc chute 21 and falls to the outside of the rectifier plate 2, thereby further improving the stability of the particle feed particle size detection device.

[0043] Optionally, the feeding mechanism 1 includes a screw feeder 12, which is located between the feeding box 11 and the rectifying plate 2, and is used to control the particle feed to be tested in the feeding box 11 to fall evenly.

[0044] Exemplarily, in an embodiment of the present invention, the unloading mechanism also includes a synchronous motor 13, the screw feeder 12 includes fan blades 121, a shell 122 and an axial hole 123, a feed port 124 is provided at the top of the shell 122, the feed port 124 is communicated with the bottom opening of the unloading box 11, a discharge port 125 is provided at the bottom of the shell 122, the discharge port 125 is arranged above the head end of the rectifier plate 2, and the distance between the discharge port 125 and the rectifier plate 2 is maintained at two to three times the particle size of the granular feed to be measured, a plurality of fan blades 121 are provided, which are evenly distributed on the circumference of the axial hole 123, the motor shaft of the synchronous motor 13 is connected to the axial hole 123, and the motor shaft of the synchronous motor 13 is parallel to the rectifier plate 2. The particle feed to be tested falls into the screw feeder 12 through the bottom opening of the discharge box 11 and the feed inlet 124 on the screw feeder 12, and the fan blades 121 are controlled by the synchronous motor 13 to rotate at a uniform speed, so that the particle feed to be tested falls evenly and slowly from the discharge port 125 under the movement of the fan blades 121, so that the particle feed to be tested falls evenly and slowly onto the rectifier plate 2, thereby further improving the stability of the particle feed particle size detection device.

[0045] Optionally, the image recognition mechanism 4 includes a strip light source 42 , and the strip light source 42 is arranged on both sides of the industrial camera 41 .

[0046] Exemplarily, in an embodiment of the present invention, the strip light source 42 is a 6W dimmable LED light source. By providing the strip light source 42, the industrial camera 41 can be illuminated, so that the image taken by the industrial camera 41 is clearer, thereby making the subsequent image recognition more accurate, thereby further improving the accuracy of the detection results of the particle feed particle size detection device.

[0047] Optionally, the image recognition mechanism 4 includes a guide rail 43 , which is arranged along the length direction of the rectifier plate 2 , and the industrial camera 41 is slidably disposed on the guide rail 43 .

[0048] Exemplarily, in an embodiment of the invention, a guide rail 43 is disposed at the top of the box body 6, and an industrial camera 41 is slidably disposed on the guide rail 43, so that the shooting range of the industrial camera 41 can be adjusted, and the shooting range of the industrial camera 41 can accurately cover the entire arc-shaped slide groove 21, thereby further improving the accuracy of the detection results of the particle feed particle size detection device.

[0049] Optionally, a material receiving box 5 is further included, and the material receiving box 5 is connected to the rear end of the rectifier plate 2.

[0050] Illustratively, in an embodiment of the present invention, a receiving box 5 is provided at the tail end of the rectifier plate 2, which can collect the detected pellet feed, thereby reducing the subsequent cleaning of the detection device. At the same time, the receiving box 5 can also be detachably connected to the box body 6, so that the receiving box 5 can conveniently collect the pellet feed in the storage bag after receiving it, thereby improving the operating convenience of the pellet feed particle size detection device.

[0051] A method for detecting particle size of pellet feed, comprising the aforementioned particle size detection device structure, comprises the following steps:

[0052] S1: According to the pellet feed to be tested, the angle between the rectifying plate 2 and the horizontal plane is adjusted, and the pellet feed to be tested is added into the feed box 11 .

[0053] Specifically, in an embodiment of the present invention, the angle between the rectifier plate 2 and the horizontal plane is adjusted according to the particle feed to be tested, and the particle feed to be tested is poured from the top opening of the discharge box 11, so that the particle feed to be tested enters the screw feeder 12 from the bottom opening of the discharge box 11, and the synchronous motor 13 is turned on to drive the fan blades 121 to rotate, so that the particle feed to be tested in the screw feeder 12 falls evenly and slowly from the discharge port 125 onto the rectifier plate 2.

[0054] S2: Turn on the linear electromagnetic vibrator 3 to make the granular feed to be tested evenly fall into the arc chute 21 and slowly slide toward the tail end of the rectifier plate 2.

[0055] Specifically, in an embodiment of the present invention, the frequency and amplitude of the linear electromagnetic vibrator 3 are adjusted according to the particle feed to be tested, so that the particle feed to be tested falling on the rectifier plate 2 is diverted by multiple rows of diverter plates 22 and then enters the arc chute 21. Through the vibration of the linear electromagnetic vibrator 3, the particle feed to be tested on the arc chute 21 can slowly slide downward in a single particle along the direction of the arc chute 21 at a certain interval, which is convenient for subsequent shooting.

[0056] S3: The image of the pellet feed to be tested on the arc chute 21 is photographed by the industrial camera 41 and transmitted to an external computer for image recognition, and physical characteristic parameters such as the major diameter, minor diameter and particle size distribution of the pellet feed to be tested are recorded.

[0057] Specifically, in the embodiment of the present invention, an industrial camera 41 is arranged on the top of the box body 6 to photograph the pellet feed to be tested sliding on the arc-shaped slide groove 21. The industrial camera 41 can be connected to an external computer through a USB3.0 interface. The industrial camera 31 transmits the captured image to the external computer. The external computer automatically collects the image and automatically outputs the physical characteristic parameters such as the major diameter, minor diameter and particle size distribution of the current pellet feed sample to be tested after image processing, and records and stores them for later query.

[0058] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] The above descriptions are merely optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A particle size detection device for pellet feed, characterized in that: include: A material unloading mechanism (1), a rectifying plate (2), a linear electromagnetic vibrator (3) and an image recognition mechanism (4), The unloading mechanism (1) comprises an unloading box (11), the unloading box (11) is a box-shaped structure with two ends open, the unloading box (11) is vertically arranged above the rectifying plate (2), the rectifying plate (2) is a square structure and is arranged at an acute angle to the horizontal plane, and the rectifying plate (2) is provided with an arc-shaped slide groove (21) matching the particle size of the granular feed to be measured along the length direction, The linear electromagnetic vibrator (3) is arranged at the bottom of the rectifier plate (2). The image recognition mechanism (4) comprises an industrial camera (41), wherein the industrial camera (41) is arranged above the rectifying plate (2), and the industrial camera (41) is used to capture the image of the pellet feed to be tested on the arc-shaped chute (21).

2. The pellet feed particle size detection device according to claim 1, characterized in that: The rectifying plate (2) is provided with a plurality of arc-shaped sliding grooves (21), and the plurality of arc-shaped sliding grooves (21) are arranged in parallel along the width direction of the rectifying plate (2).

3. The pellet feed particle size detection device according to claim 2, characterized in that: The arc-shaped slide grooves (21) are distributed in the lower half of the rectifying plate (2), and a plurality of diverter plates (22) are vertically arranged on the upper half of the rectifying plate (2), and the plurality of diverter plates (22) are arranged at intervals along the width direction of the rectifying plate (2).

4. The pellet feed particle size detection device according to claim 3, characterized in that: The diverter plates (22) are arranged in multiple rows along the length direction of the rectifying plates (2), and the rectifying plates (2) in multiple rows are arranged in a staggered manner.

5. The pellet feed particle size detection device according to claim 1, characterized in that: Baffles (23) are arranged on both sides of the arc-shaped slide groove (21) along the direction of the arc-shaped slide groove (21), and the baffles (23) are located in the upper half of the arc-shaped slide groove (21).

6. The pellet feed particle size detection device according to claim 1, characterized in that: The feeding mechanism (1) comprises a screw feeder (12), wherein the screw feeder (12) is located between the feeding box (11) and the rectifying plate (2), and the screw feeder (12) is used to control the particle feed to be tested in the feeding box (11) to fall evenly.

7. The pellet feed particle size detection device according to claim 1, characterized in that: The image recognition mechanism (4) comprises a strip light source (42), and the strip light source (42) is arranged on both sides of the industrial camera (41).

8. The pellet feed particle size detection device according to claim 7, characterized in that: The image recognition mechanism (4) comprises a guide rail (43), the guide rail (43) is arranged along the length direction of the rectifying plate (2), and the industrial camera (41) is slidably arranged on the guide rail (43).

9. The pellet feed particle size detection device according to claim 1, characterized in that: It also comprises a material receiving box (5), wherein the material receiving box (5) is connected to the rear end of the rectifying plate (2).

10. A method for detecting particle size of pellet feed, comprising the device for detecting particle size of pellet feed according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: According to the pellet feed to be tested, the angle between the rectifying plate (2) and the horizontal plane is adjusted, and the pellet feed to be tested is added into the feed box (11); Step 2: turning on the linear electromagnetic vibrator (3) to allow the feed particles to be tested to evenly fall into the arc-shaped chute (21) and slowly slide toward the rear end of the rectifying plate (2); Step 3: The image of the pellet feed to be tested on the arc chute (21) is photographed by the industrial camera (41), and transmitted to an external computer for image recognition, and physical characteristic parameters such as the major diameter, minor diameter and particle size distribution of the pellet feed to be tested are recorded.

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