Buckwheat husking machine grain image acquisition device with olive-shaped tooth screening plate

Abstract

The invention relates to the technical field of buckwheat processing, and discloses a buckwheat husking machine grain image acquisition device with an olive-shaped tooth screening plate, the buckwheat husking machine grain image acquisition device comprises a support frame, a box body and a standard VESA support, the standard VESA support enables the box body to be hinged to the tail end of the support frame, the box body comprises the olive-shaped tooth screening plate and a vibration motor, and the vibration motor is connected with the olive-shaped tooth screening plate. The screening plate with the olive-shaped teeth is arranged at the feeding end of the box body and is rigidly connected with the vibration motor; the supporting frame comprises a vertical rod, a transverse rod, a base, a rectangular clamp, a transverse rod sliding block and a longitudinal telescopic rod, the base is placed on the ground, and one end of the vertical rod is connected with the base. The device is designed aiming at a buckwheat husking machine in reality, is installed on the buckwheat husking machine and is applied to a real factory production environment. Real pictures and data are directly collected from the buckwheat husking machine, the running condition of the buckwheat husking machine is visually displayed through the directly collected pictures and the data obtained through algorithm processing, and the working state of the buckwheat husking machine is accurately adjusted.

Description

Technical Field

[0001] This invention relates to the field of buckwheat processing technology, specifically to a buckwheat hulling machine grain image acquisition device with an olive-shaped toothed sieve plate. Background Technology

[0002] Buckwheat hulling is a crucial step in processing and utilizing buckwheat. Its main function is to remove the hard outer shell of the buckwheat kernels to obtain edible buckwheat kernels. Hulled buckwheat has increased economic value, improved taste, and is easier to store and process. Buckwheat hulling methods include mechanical hulling and wet hulling. Mechanical hulling is currently the most common method, suitable for large-scale industrial production and highly efficient. Common mechanical devices include milling machines, impact hullers, and friction hullers. The hulling principles of different mechanical devices are largely similar: they all use methods such as squeezing, grinding, impacting, and tumbling to remove the outer shell of the buckwheat kernels. The core component of a milling huller is the grinding plate, consisting of two rotating grinding discs. As the buckwheat passes through the rotating discs, the friction and crushing separate the kernel from the shell, which is then discharged through the outlet. During the milling process, factors such as improper disc spacing can lead to a decrease in the hulling rate, requiring periodic shutdowns to adjust the disc spacing. Currently, the mainstream method for determining the appropriate hulling rate and mill disc spacing in buckwheat hulling production is visual inspection. Workers judge and adjust the mill disc spacing in the hulling machine by observing the ratio of hulled to unhulled buckwheat flowing from the discharge port. This method relies heavily on the experience and personal judgment of the workers to infer the condition of the buckwheat hulling machine, lacking scientific data support. This leads to inaccurate mill disc spacing adjustments and requires frequent observation and judgment by the workers, resulting in low efficiency.

[0003] The buckwheat grains flowing out of the buckwheat hulling machine fall into the collection area at a relatively fast speed and in large quantities, making it difficult to accurately capture images of the moving buckwheat grains using ordinary direct shooting methods. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a buckwheat hulling machine grain image acquisition device with an olive-shaped toothed sieve plate, which solves the problem that ordinary direct shooting methods are difficult to accurately capture moving buckwheat grains.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a buckwheat hulling machine grain image acquisition device with an olive-shaped toothed sieve plate, comprising: a support frame, a box body and a standard VESA bracket; the standard VESA bracket hinges the box body to the end of the support frame, the box body includes an olive-shaped toothed sieve plate and a vibration motor, the olive-shaped toothed sieve plate is disposed at the feeding end of the box body and rigidly connected to the vibration motor; The support frame includes a vertical rod, a horizontal rod, a base, a rectangular clamp, a horizontal rod slider, and a longitudinal telescopic rod. The base is placed on the ground. One end of the vertical rod is connected to the base. The horizontal rod is orthogonally connected to the other end of the vertical rod through a diagonally arranged array of screw holes. A horizontal rod slider is nested outside the horizontal rod. The longitudinal telescopic rod is slidably connected to the long groove of the horizontal rod through the horizontal rod slider. The longitudinal telescopic rod is composed of a nested long cube and has vertically arranged positioning holes. The enclosure includes a main body with a top cover plate fixedly connected to its upper part. The outer wall of the top cover plate has an industrial camera positioning hole. A lower sliding plate is located at the bottom of the main body, and one side of the outer wall of the lower sliding plate is connected to a toothed sieve plate. The enclosure includes a guide air duct and a fan housing. The guide air duct is U-shaped and connects the fan housing to the industrial camera positioning hole. Trapezoidal ventilation holes are provided around the industrial camera positioning hole. The air outlet of the guide air duct completely covers the trapezoidal ventilation holes and wraps around the connection cable between the industrial camera and the development board. The connection cable passes through the trapezoidal ventilation holes and is completely embedded in the inner cavity of the guide air duct. The toothed sieve plate includes an adjustable central suspended plate. Protruding screw holes are provided on both sides of the central suspended plate. Corresponding screw holes are arranged vertically on both sides of the front end of the toothed sieve plate. Long screws pass through the screw holes and are locked by upper and lower nuts. Double-sided semi-circular long grooves are formed on the surface of the central suspended plate to achieve vertical displacement adjustment.

[0006] Preferably, a ramp slide is fixed to one side of the outer wall of the main body of the housing. The longer side of the ramp slide is movably connected to the central suspended plate. The industrial camera is vertically inserted into the industrial camera positioning hole, and its bottom is limited by an arc-shaped structure. The industrial camera positioning hole is a square hole with four protruding corners, and its size is precisely matched with the outer contour of the industrial camera. A display screen is provided behind the upper cover plate, and the display screen is covered with a display protective shell.

[0007] Preferably, the lower sliding plate has a U-shaped structure, with its inner folded edge forming a lampshade mounting groove. The bottom of the lampshade is engaged inside the lampshade mounting groove. A square acquisition port is opened on the top of the lampshade, and trapezoidal lamp plates are attached to the four walls. The lampshade is directly facing the optical axis center of the industrial camera lens.

[0008] Preferably, a development board slot is provided on one side of the outer wall of the main body of the enclosure, the outer wall of the development board slot is covered with a development board cover, the development board cover has an arc-shaped opening for the power cord to pass through, and a rectangular ventilation opening and a circular heat dissipation hole are provided on the side of the development board slot.

[0009] Preferably, the base and the vertical rod are rigidly connected in a T-shape, the clamping surface of the rectangular clamp is provided with an anti-slip rubber layer, the rectangular clamp is clamped on the crossbeam of the shelling machine, and the contact surface between the base and the ground is provided with anti-slip texture.

[0010] Preferably, the VESA bracket connecting piece is provided with a mounting hole array that matches the standard VESA bracket, and the hinge axis of the standard VESA bracket is provided with an angle locking knob.

[0011] Preferably, the vibration motor is located at the junction of the toothed sieve plate and the lower slide plate, and its vibration frequency range is 2000-5000 rpm, and the amplitude is adjustable from 0.5 to 2 mm.

[0012] This invention provides a grain image acquisition device for a buckwheat hulling machine with an olive-shaped toothed sieve plate. It has the following beneficial effects: 1. This invention is designed for buckwheat hulling machines that exist in reality. It is installed on buckwheat hulling machines and applied in a real factory production environment. It directly collects real pictures and data from the buckwheat hulling machine, eliminating the problem of workers relying on visual inspection of buckwheat grains and experience to judge the operating status of the buckwheat hulling machine. The directly collected pictures and data obtained by algorithm processing intuitively display the operating status of the buckwheat hulling machine, and scientifically and accurately adjust the working status of the buckwheat hulling machine.

[0013] 2. The present invention uses an adjustable suspended plate, olive-shaped teeth arranged at the bottom, and a structure that works in conjunction with a sloping slide plate and a slightly shorter front enclosure to control the flow of buckwheat grains. This allows for small-scale sampling and sieving, ensuring that the buckwheat grains flowing into the image acquisition device are in a suitable form for acquisition, thereby improving image quality.

[0014] 3. The image acquisition device of this invention is designed with an industrial camera, fan, display, development board, etc., to independently realize the requirements of image acquisition and algorithm processing of buckwheat grains on the device. It has functions such as providing light, dust removal, heat dissipation, and vibration, without the need for other devices or equipment.

[0015] 4. This application can intuitively display the operating status of the buckwheat hulling machine through directly collected images, and scientifically and accurately adjust the working status of the buckwheat hulling machine. At the same time, compared with the prior art, the technical solution adopted by this invention reduces the equipment manufacturing cost and the equipment failure rate. Attached Figure Description

[0016] Figure 1 This is a perspective view of the image acquisition device in this invention; Figure 2 This is a diagram illustrating the image acquisition device of the present invention; Figure 3 This is a schematic diagram of the support frame structure of the image acquisition device in this invention; Figure 4 This is a front view structural diagram of the housing of the image acquisition device in this invention; Figure 5This is a rear view structural diagram of the housing of the image acquisition device in this invention; Figure 6 This is a structural diagram of the housing separation of the image acquisition device in this invention; Figure 7 This is a structural diagram of the upper cover plate of the image acquisition device in this invention; Figure 8 This is a structural diagram showing the separation of the upper cover plate and the air duct of the image acquisition device in this invention; Figure 9 This is a side view of the separation structure between the upper cover plate and the air duct of the image acquisition device in this invention; Figure 10 This is a structural diagram of the image acquisition device of the present invention, showing the olive-shaped toothed sieve plate and the inclined sliding plate. Figure 11 This is a side view of the image acquisition device of the present invention, showing the olive-shaped toothed sieve plate and the inclined slide plate. Figure 12 This is a structural diagram showing the separation of the development board cover and the display protective shell of the image acquisition device in this invention.

[0017] The components include: 1. Support frame; 101. Vertical rod; 102. Horizontal rod; 103. Base; 104. Rectangular clamp; 105. Horizontal rod slider; 106. Longitudinal telescopic rod; 107. VESA bracket connecting piece; 2. Housing; 201. Housing body; 202. Top cover plate; 203. Lower slide plate; 204. Dispersion plate with olive-shaped toothed screen; 205. Inclined slide plate; 206. Air duct; 207. Fan housing; 208. Display protective shell; 209. Development board cover; 210. Lampshade; 211. Industrial camera; 212. Lens; 213. Vibration motor; 3. Standard VESA bracket. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see the appendix Figure 1 - Appendix Figure 12 This invention provides a buckwheat hulling machine grain image acquisition device with an olive-shaped toothed sieve plate, including a support frame 1, a box 2 and a standard VESA bracket 3. The standard VESA bracket 3 hinges the box 2 to the end of the support frame 1. The box 2 includes an olive-shaped toothed sieve plate 204 and a vibration motor 213. The olive-shaped toothed sieve plate 204 is disposed at the feeding end of the box 2 and is rigidly connected to the vibration motor 213. The support frame 1 includes a vertical rod 101, a horizontal rod 102, a base 103, a rectangular clamp 104, a horizontal rod slider 105, and a longitudinal telescopic rod 106. The base 103 is placed on the ground. One end of the vertical rod 101 is connected to the base 103. The horizontal rod 102 is orthogonally connected to the other end of the vertical rod 101 through an array of diagonally arranged screw holes. The horizontal rod 102 is nested with a horizontal rod slider 105. The longitudinal telescopic rod 106 is slidably connected to the long groove of the horizontal rod 102 through the horizontal rod slider 105. The longitudinal telescopic rod 106 is composed of a nested long cube and has vertically arranged positioning holes.

[0020] The base 103 and the vertical rod 101 are rigidly connected in a T-shape. The clamping surface of the rectangular clamp 104 is provided with an anti-slip rubber layer. The rectangular clamp 104 is clamped on the crossbeam of the shelling machine. The contact surface between the base 103 and the ground is provided with anti-slip texture.

[0021] The VESA bracket connector 107 is provided with a mounting hole array that matches the standard VESA bracket 3, and the hinge axis of the standard VESA bracket 3 is provided with an angle locking knob.

[0022] For details, please refer to Figure 1 The overall structure is as follows Figure 1 As shown, it consists of a support frame 1, a housing 2, and a standard VESA bracket 3, which connects the housing 2 to the support frame 1.

[0023] Figure 2 This is an overall structural diagram of support frame 1. Figure 3This is a partial structural diagram of support frame 1. Support frame 1 consists of a vertical rod 101, a horizontal rod 102, a base 103, a rectangular clamp 104, a horizontal rod slider 105, a longitudinal telescopic rod 106, and a VESA bracket connecting piece 107. The upper end of the vertical rod 101 has diagonally arranged screw holes. The end of the horizontal rod 102 connected to the vertical rod 101 has the same screw holes as the vertical rod 101. The end of the horizontal rod 102 with screw holes is inserted horizontally into the vertical rod 101, with the screw holes of the two rods corresponding to each other, and secured with screws. The other end of the vertical rod 101 is connected to the base 103, forming a "T" shape. The base 103 is placed on the ground, serving as the support base for the entire device. The other end of the horizontal rod 102 is connected to one side of the rectangular clamp 104. The rectangular clamp 104 is a rectangular clamp-like structure that is placed on the crossbeam of the buckwheat hulling machine to clamp the crossbeam and provide support for the other end of the device. The base 103 and rectangular clamp 104 provide support for the device at both ends, ensuring that the device is stably fixed on the buckwheat hulling machine. The horizontal slider 105 is nested on the horizontal bar 102, allowing for free lateral movement on the horizontal bar 102. The horizontal bar 102 has an elongated slot, and the horizontal slider 105 has screw holes. After adjusting the horizontal slider 105 to a suitable position within the elongated slot, it is fixed with screws. The lower end of the horizontal slider 105 is connected to a longitudinal telescopic rod 106, which consists of two nested hollow, three-sided elongated cubes. The upper telescopic rod is fixed to the horizontal slider 105, while the lower telescopic rod, slightly smaller in size, is nested inside the upper telescopic rod, allowing for up-and-down movement within the upper telescopic rod. The upper telescopic rod has vertically arranged, evenly spaced screw holes at its lower end and the lower telescopic rod has upper end. As the lower telescopic rod moves within the upper telescopic rod, the screw holes on both rods align. When the lower telescopic rod extends downwards to different lengths, the different screw holes align again. By passing screws through the corresponding screw holes and tightening them, the position of the lower telescopic rod is fixed, thus adjusting the extension length of the lower telescopic rod. The VESA bracket connecting piece 107 is connected to the lower end of the longitudinal telescopic rod 106, and the standard VESA bracket 3 is connected to it through its screw holes. The other end of the standard VESA bracket 3 is connected to the housing 2. The standard VESA bracket 3 has an adjustable tilt angle, and the housing 2 can be adjusted accordingly after connecting the standard VESA bracket 3. The box 2 is adjusted in the horizontal position by the horizontal slider 105, in the vertical position by the vertical telescopic rod 106, and in the tilt angle by the standard VESA bracket 3. The three are used together to adjust the box 2 to a suitable position at the outlet of the buckwheat huller, so as to ensure that the buckwheat flowing from the outlet of the buckwheat huller into the box 2 has a suitable shape, flow rate and flow velocity, thereby improving the quality of buckwheat grain image acquisition.

[0024] The housing 2 includes a housing body 201, and a top cover 202 is fixedly connected to the top of the housing body 201. The outer wall of the top cover 202 is provided with an industrial camera positioning hole. The housing 2 includes a guide air duct 206 and a fan housing 207. The guide air duct 206 is U-shaped and connects the fan housing 207 to the industrial camera positioning hole. The industrial camera positioning hole is surrounded by trapezoidal ventilation holes. The air outlet of the guide air duct 206 completely covers the trapezoidal ventilation holes and wraps the connection cable between the industrial camera 211 and the development board. After the connection cable passes through the trapezoidal ventilation holes, it is completely embedded in the inner cavity of the guide air duct 206.

[0025] The industrial camera 211 is vertically inserted into the industrial camera positioning hole, and its bottom is limited by an arc-shaped structure. The industrial camera positioning hole is a square hole with four protruding corners, and its size is precisely matched with the outer contour of the industrial camera 211. A display screen is set behind the upper cover plate 202, and the display screen is covered by a display protective shell 208.

[0026] For details, please refer to Figure 4 and Figure 5 , Figure 4 This is a front view structural diagram of the image acquisition device housing 2. Figure 5 This is a rear view of the image acquisition device housing 2. The housing 2 consists of a main body 201, an upper cover 202, a lower slide plate 203, a toothed sieve plate 204, a ramp slide plate 205, a guide air duct 206, a fan housing 207, a display protective housing 208, a development board cover 209, and a lampshade 210. Figure 6 This is a structural diagram of the main body of the housing 2. The upper cover 202 is positioned directly above the main body 201, and the lower slide plate 203, with the same length and width as the main body 201, is positioned directly below it. These three components constitute the main body of the housing 2. A lampshade 210 is located inside the main body 201, resting on the lower slide plate 203. The lower slide plate 203 has a U-shaped structure with both sides folded inwards. The lampshade 210 rests on the folded portion, which serves as its support. A square opening is located at the top of the lampshade 210, through which the industrial camera 211 enters and acquires a field of view in the image acquisition area on the lower slide plate 203. Four trapezoidal light panels are fitted onto the inner walls of the lampshade 210, providing ample illumination to the image acquisition area through which buckwheat grains flow on the lower slide plate 203, enhancing the brightness of the image acquisition area and improving image acquisition quality.

[0027] Figure 7 This is a structural diagram of the upper cover plate 202 of the image acquisition device housing 2. Figure 8 This is a structural diagram showing the separation of the upper cover plate 202 and the air duct 206 of the image acquisition device housing 2. Figure 9This is a side view of the separated structure of the image acquisition device housing 2, including the top cover 202, the air duct 206, the industrial camera 211, and the lens 212. The top cover 202 is located above the main body 201 of the housing. It has a standard VESA bracket 3 connection hole at its top for connecting the standard VESA bracket 3 to the top cover 202, thereby connecting the housing 2 to the support frame 1 via the standard VESA bracket 3. The top cover 202 has an industrial camera positioning hole at its center. This positioning hole is a 25mm high, square hole with protruding corners. The industrial camera 211 is vertically inserted into the positioning hole, and the size of the positioning hole perfectly fits the industrial camera 211, preventing the industrial camera 211 from shifting during image acquisition and affecting the acquisition effect. The thin walls around the industrial camera positioning hole are used to position the industrial camera 211. The positioning hole ensures that the industrial camera 211 is in the exact center of the upper cover plate 202, thereby ensuring that the industrial camera lens 212 is in the center of the entire image acquisition device, allowing the industrial camera 211 to obtain the optimal field of view. The air outlet of the air guide duct 206 covers the industrial camera positioning hole, completely enclosing the industrial camera 211 and the positioning hole. The four protruding structures at the four corners of the positioning hole of the industrial camera 211 provide positioning and support for the air guide duct 206, ensuring that the air outlet of the air guide duct 206 stably encloses the industrial camera 211 and is located in the center of the upper cover plate 202. In the center of the upper cover plate 202, below the industrial camera positioning hole, there is an inwardly protruding arc-shaped structure used to limit the height of the industrial camera 211 and provide support at the bottom of the industrial camera 211 to prevent the industrial camera 211 from falling into the housing 2. After inserting the industrial camera 211 into the positioning hole, the arc-shaped structure supports the industrial camera 211 from below. The industrial camera lens 212 is then installed onto the industrial camera 211 from below the arc-shaped structure. At this point, the industrial camera 211 and lens 212 are completely installed on the upper cover plate 202. The air duct 206 is a square, hollow channel structure with an overall "U" shape. One end connecting to the upper cover plate 202 is the air outlet, and the other end is the air inlet, which is connected to the fan housing 207. The fan housing 207 is an internally hollow cubic structure located on one side of the housing 2. The fan housing 207 has an opening at the top, and the fan is vertically inserted into the fan housing 207 through the top opening. The air inlet of the air guide duct 206 is connected to the upper opening of the fan housing 207, and the two fit together perfectly. The fan installed in the fan housing 207 blows air upwards, and the generated air force enters the air guide duct 206 through the air inlet, and the air force is blown out from the air outlet through the air guide duct 206.The top cover plate 202 has trapezoidal ventilation holes around the positioning hole of the industrial camera 211. The airflow duct 206, after connecting to the top cover plate 202 through the positioning hole of the industrial camera 211, also completely covers the trapezoidal ventilation holes around the positioning hole. The trapezoidal ventilation hole at the top of the positioning hole is slightly larger. The connection cable between the industrial camera 211 and the development board needs to pass through the inside of the housing 2. The connection cable comes out from the development board, passes through the inside of the housing 2, and then extends out through the slightly larger trapezoidal ventilation hole to connect to the industrial camera 211. This connection cable is also wrapped by the airflow duct 206. The air blown out from the exhaust end passes through the industrial camera 211 and enters the housing 2 through the trapezoidal ventilation holes. A portion of the air enters the image acquisition area through the upper opening of the lampshade 210, circulates in the housing 2, and is blown out from the inlet and outlet ends of the lower slide plate 203. A portion of the airflow enters the area outside the lampshade 210 inside the housing 2, completes circulation, and then enters the image acquisition area through the upper opening of the lampshade 210, and is also blown out by the feed and discharge ends of the lower slide plate 203. During the operation of the image acquisition device, the industrial camera 211 will continuously generate heat, and the lamp panel on the inner wall of the lampshade 210 will also generate a lot of heat under conditions of high brightness and long working time. After the airflow is blown out from the air outlet of the guide duct 206, it dissipates heat from the industrial camera 211. After the airflow enters the housing 2, it dissipates heat from the lamp panel on the lampshade 210, and blows out dust and debris brought in during the flow of buckwheat into the housing 2 from both ends of the lower slide plate 203, preventing foreign objects from affecting image acquisition and improving image acquisition quality. A square frame is opened at the lower right of the upper cover 202. A 5-inch display screen is installed on the left side of the square frame and directly below the upper cover 202. Various connection cable ports of the display screen are located on the right side. A data transmission cable is required to connect the display screen and the development board. The cable from the development board passes through the inside of the housing 2 and then through the lower right frame of the top cover 202 to the right side of the display screen.

[0028] The toothed sieve plate 204 includes an adjustable central suspended plate. The central suspended plate has protruding screw holes on both sides. The front side of the toothed sieve plate 204 has corresponding screw holes arranged vertically. Long screws pass through the screw holes and are locked by upper and lower nuts. The surface of the central suspended plate has double-sided semi-circular long grooves to achieve vertical displacement adjustment. A ramp slide plate 205 is fixed to one side of the outer wall of the main body 201. The longer side of the ramp slide plate 205 is movably connected to the central suspended plate. The toothed shape is more suitable for the characteristics of buckwheat grains, which can better avoid damage to buckwheat grains during the sieving process, while achieving more precise flow control.

[0029] The bottom of the main body 201 of the box is provided with a lower slide plate 203. One side of the outer wall of the lower slide plate 203 is connected to the sieve plate 204 with olive-shaped teeth. The lower slide plate 203 has a U-shaped structure, and its inner folded edge forms a lampshade mounting groove. The bottom of the lampshade 210 is snapped into the inside of the lampshade mounting groove. A square collection port is opened on the top of the lampshade 210, and the four walls are fitted with trapezoidal lamp plates. The lampshade 210 is directly facing the optical axis center of the industrial camera lens 212.

[0030] A development board slot is provided on one side of the outer wall of the main body 201. The outer wall of the development board slot is covered by a development board cover 209. The development board cover 209 has an arc-shaped opening for the power cable to pass through. A rectangular ventilation opening and a circular heat dissipation hole are opened on the side of the development board slot.

[0031] The vibrating motor 213 is located at the junction of the toothed sieve plate 204 and the lower slide plate 203. Its vibration frequency range is 2000-5000rpm and the amplitude is adjustable from 0.5 to 2mm.

[0032] For details, please refer to Figure 10 , Figure 10 This is a structural diagram of the toothed sieve plate 204 and the ramp slide plate 205. Figure 11This is a side view of the structure of the toothed sieve plate 204, the ramp slide plate 205, and the vibrating motor 213. The toothed sieve plate 204 and the ramp slide plate 205 are located at the end of the box body 201 where buckwheat grains flow in through the lower slide plate 203. The toothed sieve plate 204 is a drawer-type structure with three sides enclosed; the unenclosed side is connected to the lower slide plate 203 and the box body 201. Buckwheat grains flowing into the toothed sieve plate 204 pass through the sieve plate and enter the lower slide plate 203. The ramp slide plate 205 is composed of two rectangular plates joined at a certain angle; the shorter side is connected to the box body 201, and the longer side is connected to the toothed sieve plate 204. The longer plate has protruding obstructions on both sides to block the buckwheat grains flowing into the ramp slide plate 205 and prevent them from sliding off the sides. The olive-shaped toothed sieve plate 204 regulates the flow rate of buckwheat grains during the inflow process. This function is achieved by a vertically movable central suspended plate within the sieve plate 204. The central suspended plate is inserted into the front end of the sieve plate body from the side. The central suspended plate has protruding screw holes on both sides and elongated slots with two semi-circular sides on its surface. After insertion, the protruding screw holes at both ends correspond to the protruding screw holes on the upper and lower sides of the front end of the sieve plate body. Long screws are passed through these protruding screw holes and then secured with nuts, assembling the central suspended plate and the sieve plate body together. A nut is located at the top and bottom of the central suspended plate to fix its position. After adjusting the central suspended plate to the appropriate position, the nuts at the top and bottom of the protruding screw holes are tightened, securing the central suspended plate. One end of the ramp slide plate 205 is attached to the main body 201 of the box, and the other end is placed on the central suspended plate. The ramp slide plate 205 moves up and down as the central suspended plate moves. The inner bottom of the toothed sieve plate 204 has three rows of toothed olive-shaped teeth for sieving the incoming buckwheat grains. The buckwheat grains slide down the inclined slide plate 205 and enter the sieve plate body through the long slot on the central suspended plate. The toothed olive-shaped teeth at the bottom sieve the incoming buckwheat grains, adjusting them to a suitable shape for image acquisition. The buckwheat grains then enter the lower slide plate 203 in this shape, where the industrial camera 211 acquires images. Sieving the buckwheat grains solves the problem of grain accumulation during flow, ensuring a uniform distribution of the grains in the image acquisition area and improving image quality. A vibration motor 213 is located at the connection between the toothed sieve plate 204 and the lower slide plate 203 to concentrate vibration on the toothed olive-shaped teeth, further improving the sieving effect and enhancing the quality of the acquired images.

[0033] Figure 12This diagram shows the separation structure of the development board cover 209 and the display protective shell 208 of the image acquisition device housing. The development board, used for image acquisition and algorithm processing, is mounted on the image acquisition device. A development board slot structure is provided on one side of the housing body 201. The development board slot is a hollow cuboid structure with an opening at the top and a partial opening on the side. The development board is inserted into the slot from the top opening downwards. The side opening of the slot provides space for various connection cable connectors on the development board. Next to the side opening, a rectangular opening is provided on the housing body 201. Various connection cables from the development board's connection cable connectors enter the housing 201 through the rectangular opening and connect to the industrial camera 211 or the display screen, etc. A circular opening on the front of the development board slot allows the development board fan to be unobstructed, facilitating air exchange with the air blown in through the rectangular opening on the side of the development board slot. A development board cover 209 is located on the side of the main body 201 where the development board slot is located. The cover is a rectangular box-shaped structure that covers the development board slot and the rectangular opening on the side. Its function is to protect the development board from dust and foreign objects in the production environment, preventing them from affecting normal operation and preventing dust and foreign objects from entering the interior of the enclosure 2 through the rectangular opening on the side, thus affecting image acquisition. A small, rounded opening is located on one side of the development board cover 209, allowing the development board power cable to enter the cover from the external power supply device and connect to the development board. A monitor protective shell 208 is located on the top cover 202. The protective shell is a rectangular shell structure with a rectangular opening on its surface, the same size as the 5-inch display screen. After the display screen is placed on the top cover 202, the monitor protective shell 208 covers it, allowing the display area to be fully exposed through the opening. The monitor protective shell 208 completely covers the side connection port area of ​​the display screen and the opening next to the display screen for connecting cables, preventing dust generated by the image acquisition device during operation from affecting the display screen's operation.

[0034] Working principle: This device adjusts the spatial position of the housing 2 through the horizontal sliding block 105 of the support frame 1 along the horizontal bar 102, the vertical height adjustment of the longitudinal telescopic rod 106, and the tilt angle locking knob of the standard VESA bracket 3, so that the housing 2 is precisely aligned with the discharge port of the buckwheat hulling machine. At the same time, the T-shaped support and anti-slip clamp of the base 103 and the rectangular clamp 104 form a double-end fixation to ensure the stability of the device. After the buckwheat grains slide into the olive-shaped toothed sieve plate 204 through the inclined slide plate 205, the flow rate is controlled by the adjustable central suspension plate. The vibration motor 213 drives the three rows of olive-shaped teeth to vibrate at high frequency, breaking up the stacked grains and evenly guiding them into the U-shaped channel of the lower slide plate 203. The industrial camera 211 is positioned at four corners. The hole and arc-shaped limiting structure are vertically fixed to the center of the housing 2. The trapezoidal lamp plate inside the lamp cover 210 illuminates the acquisition area with high brightness, eliminating shadow interference. The air generated by the fan inside the fan housing 207 is divided after the industrial camera 211 and the connecting cable are wrapped by the U-shaped air duct 206. One path blows directly into the acquisition area, and the other path circulates and enters through the opening of the lamp cover 210, simultaneously realizing equipment heat dissipation, lamp plate cooling and grain debris dust removal. The ventilation port of the development board slot and the development board cover 209 form a dustproof heat dissipation channel. The display screen is sealed by the display protective shell 208. Finally, under the synergistic effect of dynamic adjustment, optical optimization and active cleaning, high-definition continuous image acquisition of buckwheat grains and reliable operation in dusty environments are achieved.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grain image acquisition device for a buckwheat hulling machine with an olive-shaped toothed sieve plate, characterized in that, include: Support frame (1), housing (2) and standard VESA bracket (3); The standard VESA bracket (3) hinges the box (2) to the end of the support frame (1). The box (2) includes an olive-shaped toothed sieve plate (204) and a vibration motor (213). The olive-shaped toothed sieve plate (204) is located at the feed end of the box (2) and is rigidly connected to the vibration motor (213). The support frame (1) includes a vertical rod (101), a horizontal rod (102), a base (103), a rectangular clamp (104), a horizontal rod slider (105), and a longitudinal telescopic rod (106). The base (103) is placed on the ground. One end of the vertical rod (101) is connected to the base (103). The horizontal rod (102) is orthogonally connected to the other end of the vertical rod (101) through a diagonally arranged array of screw holes. The horizontal rod (102) is nested with a horizontal rod slider (105). The longitudinal telescopic rod (106) is slidably connected to the long groove of the horizontal rod (102) through the horizontal rod slider (105). The longitudinal telescopic rod (106) is composed of a nested long cube and has vertically arranged positioning holes. The housing (2) includes a housing body (201), with a top cover plate (202) fixedly connected to the top of the housing body (201). The outer wall of the top cover plate (202) is provided with an industrial camera positioning hole. The bottom end of the housing body (201) is provided with a lower sliding plate (203). One side of the outer wall of the lower sliding plate (203) is connected to a toothed sieve plate (204). The housing (2) includes a guide air duct (206) and a fan housing (207). The guide air duct (206) is U-shaped and connects the fan housing (207) to the industrial camera positioning hole. The camera positioning hole is surrounded by trapezoidal ventilation holes. The air outlet of the air guide duct (206) completely covers the trapezoidal ventilation holes and wraps the connection line between the industrial camera (211) and the development board. The connection line passes through the trapezoidal ventilation holes and is completely embedded in the inner cavity of the air guide duct (206). The toothed sieve plate (204) includes an adjustable central suspended plate. The central suspended plate has protruding screw holes on both sides. The front side of the toothed sieve plate (204) has corresponding screw holes arranged vertically. Long screws pass through the screw holes and are locked by upper and lower nuts. The surface of the central suspended plate has double-sided semi-circular long grooves to achieve vertical displacement adjustment.

2. The buckwheat hulling machine grain image acquisition device with olive-shaped toothed sieve plate according to claim 1, characterized in that, A ramp slide (205) is fixed to one side of the outer wall of the main body of the box (201). The longer side of the ramp slide (205) is movably connected to the central suspended plate. The industrial camera (211) is vertically inserted into the industrial camera positioning hole. Its bottom is limited by an arc-shaped structure. The industrial camera positioning hole is a square hole with four protruding corners. Its size is precisely matched with the outer contour of the industrial camera (211). A display screen is provided behind the upper cover plate (202). The display screen is covered with a display protective shell (208).

3. The buckwheat hulling machine grain image acquisition device with olive-shaped toothed sieve plate according to claim 1, characterized in that, The lower sliding plate (203) has a U-shaped structure with its inner folded edge forming a lampshade mounting groove. The bottom of the lampshade (210) is snapped into the inside of the lampshade mounting groove. A square collection port is opened on the top of the lampshade (210), and the four walls are fitted with a trapezoidal lamp plate. The lampshade (210) is directly facing the optical axis center of the industrial camera lens (212).

4. The buckwheat hulling machine grain image acquisition device with olive-shaped toothed sieve plate according to claim 1, characterized in that, A development board slot is provided on one side of the outer wall of the main body of the box (201). The outer wall of the development board slot is covered by a development board cover (209). The development board cover (209) has an arc-shaped opening for the power cord to pass through. A rectangular ventilation opening and a circular heat dissipation hole are opened on the side of the development board slot.

5. The buckwheat hulling machine grain image acquisition device with olive-shaped toothed sieve plate according to claim 1, characterized in that, The base (103) and the vertical rod (101) are rigidly connected in a T-shape. The clamping surface of the rectangular clamp (104) is provided with an anti-slip rubber layer. The rectangular clamp (104) is clamped on the crossbeam of the shelling machine. The contact surface between the base (103) and the ground is provided with anti-slip texture.

6. The buckwheat hulling machine grain image acquisition device with olive-shaped toothed sieve plate according to claim 1, characterized in that, The VESA bracket connecting piece (107) is provided with a mounting hole array that matches the standard VESA bracket (3), and the hinge axis of the standard VESA bracket (3) is provided with an angle locking knob.

7. The buckwheat hulling machine grain image acquisition device with olive-shaped toothed sieve plate according to claim 1, characterized in that, The vibration motor (213) is located at the junction of the toothed sieve plate (204) and the lower slide plate (203), and its vibration frequency range is 2000-5000rpm, and the amplitude is adjustable from 0.5 to 2mm.

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