A product screening apparatus

Abstract

The utility model discloses a product screening equipment, including first conveying line, visual detection device, visual detection device sets at first conveying line top, airflow screening device, this airflow screening device sets at first conveying line discharge end top, discharge conveying line, this discharge conveying line sets at first conveying line discharge end, airflow screening device includes air intake pipe, nozzle is connected with air intake pipe and goes out, and the discharge conveying line includes second conveying line, and the second conveying line height is lower than first conveying line height, third conveying line, third conveying line sets between first conveying line and second conveying line, and the third conveying line height is lower than second conveying line height. The utility model discloses a product's delivery through first conveying line, and the detection of product length is completed with visual detection device, and then the grading of the product that meets and does not meet the specification is completed with airflow screening device and discharge conveying line, reduces the manual labor intensity, and improves the screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to a product screening device. Background Technology

[0002] Currently, food processing companies primarily use manual or simple mechanical methods to sort crispy pork by length. Manual sorting relies on operator visual judgment and manual picking, which is not only labor-intensive and inefficient, making it difficult to meet the needs of large-scale industrial production, but also prone to inconsistent sorting accuracy due to human error. Furthermore, human contact with food poses certain hygiene and safety risks. Simple mechanical sorting methods often employ sieves and similar structures, using sieves with fixed apertures to separate crispy pork of different lengths. However, this method is prone to the pork getting stuck in the sieve gaps, causing equipment blockage and disrupting production continuity. Utility Model Content

[0003] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a product screening device, comprising: The first conveyor line drives the product movement. A visual inspection device is positioned above the first conveyor line; An airflow screening device is installed above the discharge end of the first conveyor line; A discharge conveyor line is installed at the discharge end of the first conveyor line; The airflow screening device includes: Air intake pipe, which is connected to the air source; The nozzle is provided in several parts, and the several nozzles are equidistantly arranged at the bottom of the air intake pipe along the axial direction of the air intake pipe and are connected to the air intake pipe. The discharge conveyor line includes: A second conveyor line is arranged perpendicular to the first conveyor line, and the height of the second conveyor line is lower than the height of the first conveyor line; A third conveyor line is disposed between the first conveyor line and the second conveyor line, the third conveyor line is disposed parallel to the second conveyor line, and the height of the third conveyor line is lower than the height of the second conveyor line.

[0004] This invention uses a first conveyor line to transport products, a visual inspection device to detect product length, and an airflow screening device and a discharge conveyor line to classify products that meet or do not meet specifications, thereby reducing manual labor intensity and improving screening efficiency.

[0005] Furthermore, the airflow screening device also includes: An adjustable screw, which is vertically oriented and can rotate around its own circumference; A slider that is threadedly connected to an adjustable screw; The connecting plate is fixedly connected to the slider and the air intake pipe respectively.

[0006] This invention utilizes an adjustable screw that rotates circumferentially to drive a threaded slider to move vertically. This, in turn, via a connecting plate, adjusts the vertical height of the air intake pipe and the nozzle at the bottom. When screening different sizes of crispy pork products, the distance and force of the airflow acting on the product can be controlled by adjusting the nozzle height, thus improving the equipment's adaptability to screening different sizes of crispy pork products and expanding its application range.

[0007] Furthermore, the airflow screening device also includes a fixing part, on which the adjustable screw is rotatably mounted. A limiting groove is provided on the side of the fixing part, and the connecting plate is connected to the slider by bolts passing through the connecting plate and the limiting groove in sequence.

[0008] The fixing part provides mounting support for the adjustable screw. The limiting groove on the side of the fixing part guides and limits the movement of the connecting plate, so that the connecting plate can drive the air intake pipe and nozzle to move smoothly along the vertical trajectory of the limiting groove, reducing the lateral offset and tilt of the components during the adjustment process.

[0009] Furthermore, the visual inspection device includes: First power unit; The visual inspection probe is driven by the first power unit to move linearly along the conveying direction parallel to the first conveyor line.

[0010] The first power unit drives the visual inspection probe to move linearly along the conveying direction, and the position of the probe can be adjusted according to the product position.

[0011] Furthermore, the visual inspection device also includes a height adjustment mechanism, which drives the visual inspection probe to move linearly in the vertical direction.

[0012] Furthermore, the height adjustment mechanism includes: The carriage is driven by a first power device to move linearly along the conveying direction parallel to the first conveying line; A second power unit, which is mounted on the carriage; The skateboard is slidably mounted on a skateboard frame and is driven to slide vertically by a second power device. The visual detection probe is mounted on the skateboard.

[0013] The second power unit drives the slide plate to slide vertically along the carriage, thereby enabling the visual inspection probe to adjust its vertical height.

[0014] Furthermore, the visual inspection device also includes a second lead screw, which is connected to the first power device. The first power device drives the second lead screw to rotate, and the slide is threadedly connected to the second lead screw.

[0015] Furthermore, the height adjustment mechanism also includes a first lead screw, which is mounted on the slide and rotated by a second power device. The slide plate is threadedly connected to the first lead screw.

[0016] This utility model has the following advantages: This invention uses a first conveyor line to transport products, a visual inspection device to detect product length, and an airflow screening device and a discharge conveyor line to classify products that meet or do not meet specifications, thereby reducing manual labor intensity and improving screening efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the screening equipment; Figure 2 yes Figure 1 A schematic diagram of the airflow screening device in the screening equipment shown; Figure 3 yes Figure 2 A schematic diagram of the internal structure of the airflow screening device shown. Figure 4 yes Figure 1 A schematic diagram of the visual inspection device in the screening equipment shown; Figure 5 yes Figure 4 A schematic diagram of the height adjustment mechanism in the visual inspection device shown. Figure 6 This is a schematic diagram of the product's movement when the length is within acceptable limits; Figure 7 This is a schematic diagram of the product's movement when the length is not up to standard; In the picture: 100. First conveyor line; 200. Rack; 300. Visual inspection device; 310. First power unit; 320. Height adjustment mechanism; 321. Carriage; 322. Second power unit; 323. First lead screw; 324. Slide plate; 330. Second lead screw; 340. Visual inspection probe; 400. Airflow screening device; 410. Cover; 420. Adjustable screw; 430. Air inlet pipe; 440. Nozzle; 450. Fixing part; 460. Slider; 470. Connecting plate; 500. Discharge conveyor line; 510. Second conveyor line; 530. Third conveyor line; 600. Crispy Pork Belly. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0019] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0020] As described in the background section, simple mechanical screening methods often employ structures such as sieve filtration. By setting a sieve with a fixed aperture, small pieces of crispy meat of different lengths can be separated. However, this method is prone to the small pieces of crispy meat getting stuck in the gaps of the sieve, causing equipment blockage and affecting the continuity of production.

[0021] Example 1: Therefore, in order to solve the above-mentioned technical problems existing in the prior art, this embodiment provides a product screening device, such as... Figure 1 As shown, it includes: The first conveyor line 100 drives the product movement. A visual inspection device 300 is disposed above the first conveyor line; An airflow screening device 400 is installed above the discharge end of the first conveyor line; The discharge conveyor line 500 is located at the discharge end of the first conveyor line; like Figure 2 , 3 As shown, the airflow screening device includes: Air intake pipe 430, which is connected to an air source; Nozzle 440, which is provided in several parts, and the several nozzles are equidistantly arranged at the bottom of the air intake pipe along the axial direction of the air intake pipe and are connected to the air intake pipe; like Figure 6 As shown, the discharge conveyor line includes: A second conveyor line 510 is arranged perpendicular to the first conveyor line, and the height of the second conveyor line is lower than the height of the first conveyor line; A third conveyor line is disposed between the first conveyor line and the second conveyor line, the third conveyor line is disposed parallel to the second conveyor line, and the height of the third conveyor line is lower than the height of the second conveyor line.

[0022] Specifically, the screening equipment may further include a frame, the visual inspection device being disposed inside the frame, and a first conveyor line spanning the frame, such as... Figure 2 As shown, the airflow screening device may further include a cover 410, with the air inlet pipe and nozzle both disposed inside the cover. The cover is fixed to the side of the frame near the discharge end of the first conveyor line. The first conveyor line facilitates product transport, and a visual inspection device is used to detect product length. The airflow screening device and the discharge conveyor line then classify products that meet or do not conform to specifications, reducing manual labor intensity and improving screening efficiency. It should be noted that the visual inspection device is a commonly used device in the prior art for detecting product length. This device can employ mature and general-purpose technical solutions, such as a 2D vision system based on standard machine vision software platforms like Halcon, using threshold segmentation, feature extraction algorithms, and the minimum bounding rectangle method for size measurement; it can also use specialized equipment conforming to international standards, such as a food volume measuring instrument that measures sample length, height, and volume through laser rotation scanning; or it can integrate advanced 3D vision equipment, such as a line laser 3D camera or an intelligent camera with both 2D and true 3D measurement capabilities. These devices utilize mature technologies such as laser scanning and 3D point cloud analysis to quickly and accurately acquire the 3D dimensional information of the product.

[0023] In this embodiment, as Figure 3 As shown, the airflow screening device further includes: An adjustable screw 420 is provided, which is vertically oriented and can rotate around its own circumference. Slider 460, which is threadedly connected to an adjustable screw; Connecting plate 470 is fixedly connected to the slider and the air intake pipe respectively.

[0024] By rotating the adjustable screw circumferentially, the threaded slider can be moved vertically, which in turn drives the air intake pipe and the nozzle at the bottom to adjust their vertical height via the connecting plate. When it is necessary to screen small crispy meat products of different specifications, such as different diameters and weights, the distance and force of the airflow acting on the product can be controlled by adjusting the nozzle height, thereby improving the equipment's adaptability to screening small crispy meat products of different specifications and expanding the equipment's application range.

[0025] In addition, the airflow screening device may also include a fixing part 450, on which the adjustable screw is rotatably mounted. A limiting groove is provided on the side of the fixing part, and the connecting plate is connected to the slider by bolts passing through the connecting plate and the limiting groove in sequence.

[0026] In this embodiment, the fixing part provides mounting support for the adjustable screw, and the limiting groove on the side of the fixing part guides and limits the movement of the connecting plate, so that the connecting plate can drive the air intake pipe and nozzle to move smoothly only along the vertical trajectory of the limiting groove, reducing the lateral offset and tilt of the components during the adjustment process.

[0027] Specifically, the fixing part is fixed inside the cover, and the adjustable screw extends from the inside of the cover through the cover to the outside of the cover. The adjustable screw is located at the outer end of the cover and a knob can be installed thereon.

[0028] In this embodiment, as Figure 4 As shown, the visual inspection device may include: First power unit 310; The visual inspection probe 340 is driven by the first power device to move linearly along the conveying direction parallel to the first conveying line.

[0029] The first power unit drives the visual inspection probe to move linearly along the conveying direction, and the position of the probe can be adjusted according to the product position.

[0030] Specifically, the first power unit may be selected from cylinders, electric cylinders, hydraulic cylinders, or other devices capable of driving linear movement of components.

[0031] In addition, the visual inspection device also includes a height adjustment mechanism 320, which drives the visual inspection probe to move linearly in the vertical direction.

[0032] Specifically, such as Figure 5 As shown, the height adjustment mechanism may include: The carriage 321 is driven by the first power device to move linearly along the conveying direction parallel to the first conveying line; Second power unit 322, which is mounted on the carriage; The skateboard 324 is slidably mounted on the slide frame and is driven to slide vertically by a second power device. The visual detection probe is mounted on the skateboard.

[0033] The second power unit drives the slide plate to slide vertically along the carriage, thereby enabling the visual inspection probe to adjust its vertical height.

[0034] In this embodiment, the second power device may be a cylinder, electric cylinder, hydraulic cylinder, or other device capable of driving linear movement of components.

[0035] The first power unit and the second power unit can also be motors. In this case, the vision detection device can also include a second lead screw 330, which is connected to the first power unit and is driven to rotate by the first power unit. The slide is threadedly connected to the second lead screw.

[0036] The height adjustment mechanism may further include a first lead screw 323, which is mounted on the slide and rotated by a second power device. The slide plate is threadedly connected to the first lead screw.

[0037] Specifically, such as Figure 6 , 7 As shown, before the equipment starts, the second power unit is activated, which drives the first lead screw on the slide to rotate. The slide plate, which is threaded to the first lead screw, slides vertically along the slide, thereby driving the vision inspection probe mounted on the slide plate to move up and down, adjusting the height of the vision inspection probe. The first power unit is activated, which drives the second lead screw to rotate. The slide, which is threaded to the second lead screw, moves linearly along the conveying direction parallel to the first conveyor line, thereby driving the vision inspection probe to move horizontally synchronously, adjusting the horizontal position of the vision probe. By rotating the knob at the end of the adjustable screw, the adjustable screw is driven to rotate circumferentially, and the slider threaded to the adjustable screw moves vertically. Through the connecting plate, the air inlet pipe and several nozzles at the bottom are adjusted up and down synchronously. After the equipment starts, the small crispy meat to be screened is continuously conveyed to the first conveyor line, and the first conveyor line drives the small crispy meat to move at a constant speed towards the discharge end. When the crispy pork 600 moves to the area below the vision inspection device inside the frame, the vision inspection device begins to operate. This device, a commonly used length detection device in existing technology, can acquire images and analyze the length of the crispy pork using mature equipment such as 2D vision systems based on standard machine vision software platforms like Halcon, laser rotary scanning food volume measuring instruments, or line laser 3D cameras. After vision inspection, the crispy pork continues to move towards the discharge end along the first conveyor line. When it reaches the discharge end, it is graded and screened based on the vision inspection results: if the length of the crispy pork meets the preset standards, such as... Figure 6 As shown, the control unit of the airflow screening device does not issue an air jet command. The crispy pork pieces fly out along a parabolic trajectory due to inertia and fall onto the second conveyor line (which is perpendicular to the first conveyor line) at a height lower than the first conveyor line. The second conveyor line then transports products that meet the specifications to subsequent packaging or processing steps. If the length of the crispy pork pieces does not meet the preset standard, such as... Figure 7As shown, the control unit of the airflow screening device issues a jet command, and the air source supplies air to several nozzles through the air inlet pipe. The nozzles spray airflow towards the small pieces of crispy meat below. Under the force of the airflow, the small pieces of crispy meat are forced to change their trajectory and fall downwards to the third conveyor line (which is set between the first and second conveyor lines and is lower than the second conveyor line) which is parallel to the second conveyor line. The third conveyor line then transports the non-compliant products to the recycling or rework area. The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A product screening device, characterized in that, include: The first conveyor line drives the product movement. A visual inspection device is positioned above the first conveyor line; An airflow screening device is installed above the discharge end of the first conveyor line; A discharge conveyor line is installed at the discharge end of the first conveyor line; The airflow screening device includes: Air intake pipe, which is connected to the air source; The nozzle is provided in several parts, and the several nozzles are equidistantly arranged at the bottom of the air intake pipe along the axial direction of the air intake pipe and are connected to the air intake pipe. The discharge conveyor line includes: A second conveyor line is arranged perpendicular to the first conveyor line, and the height of the second conveyor line is lower than the height of the first conveyor line; A third conveyor line is disposed between the first conveyor line and the second conveyor line, the third conveyor line is disposed parallel to the second conveyor line, and the height of the third conveyor line is lower than the height of the second conveyor line.

2. The product screening device according to claim 1, characterized in that, The airflow screening device further includes: An adjustable screw, which is vertically oriented and can rotate around its own circumference; A slider that is threadedly connected to an adjustable screw; The connecting plate is fixedly connected to the slider and the air intake pipe respectively.

3. The product screening device according to claim 2, characterized in that, The airflow screening device also includes a fixing part, on which the adjustable screw is rotatably mounted. A limiting groove is provided on the side of the fixing part, and the connecting plate is connected to the slider by bolts passing through the connecting plate and the limiting groove in sequence.

4. The product screening device according to claim 1, characterized in that, The visual inspection device includes: First power unit; The visual inspection probe is driven by the first power unit to move linearly along the conveying direction parallel to the first conveyor line.

5. The product screening device according to claim 4, characterized in that, The visual inspection device also includes a height adjustment mechanism, which drives the visual inspection probe to move linearly in the vertical direction.

6. The product screening device according to claim 5, characterized in that, The height adjustment mechanism includes: The carriage is driven by a first power device to move linearly along the conveying direction parallel to the first conveying line; A second power unit, which is mounted on the carriage; The skateboard is slidably mounted on a skateboard frame and is driven to slide vertically by a second power device. The visual detection probe is mounted on the skateboard.

7. The product screening device according to claim 6, characterized in that, The visual inspection device also includes a second lead screw, which is connected to the first power device. The first power device drives the second lead screw to rotate, and the slide is threadedly connected to the second lead screw.

8. A product screening device according to claim 6, characterized in that, The height adjustment mechanism also includes a first lead screw, which is mounted on the slide and rotated by a second power device. The slide plate is threadedly connected to the first lead screw.

Images