A vision sorting conveyor with a correction mechanism

Abstract

The utility model relates to conveying device technical field discloses a visual sorting conveying belt with correction mechanism, including vision device and conveying device, and conveying device includes linear slide and conveying mechanism, and conveying mechanism installs on the slide of linear slide, and the moving direction of linear slide slide and the conveying direction of conveying mechanism are perpendicular, and the input of conveying mechanism is provided with the correction mechanism for righting material, limiting material deviation, and the correction mechanism includes two deviation rectifying plates set up in conveying mechanism both sides, vision device is located in the top of conveying device, including industrial camera and lighting device, and lighting device includes two symmetrical lighting lamps set up in industrial camera both sides, and two lighting lamps are eight character type structure layout. The utility model realizes article distribution through linear slide drive whole set conveying mechanism transverse displacement, and discards traditional push rod pushes apart and falls to the sorting mode of material frame, and the material after visual distinction is stably conveyed to corresponding station in whole journey depending on conveying belt.

Description

Technical Field

[0001] This utility model relates to the field of conveying device technology, and in particular to a vision sorting conveyor belt with a correction mechanism. Background Technology

[0002] With the popularization of machine vision technology, existing technologies have developed visual inspection solutions using industrial cameras paired with host computers. The cameras capture images of items on the conveyor line and transmit them to the computer. The computer then uses algorithms such as template matching, contour feature extraction, threshold comparison, and deep learning models to identify the orientation of the items (e.g., distinguishing left and right shoes, or front and back of irregularly shaped parts). This replaces the human eye for automated inspection. The related hardware and image recognition algorithms are well-known and mature technologies, widely used in quality inspection equipment across various industries. However, after visual recognition and inspection, traditional sorting equipment often uses a side pusher structure to directly push different types of materials out of the conveyor line, allowing them to fall freely into the lower material frame. These materials are only distinguished by orientation and category, not by appearance defects. During the direct fall, the materials collide with each other and impact the material frame, easily causing scratches, deformation, and other secondary damage, resulting in high product loss. Therefore, the industry urgently needs a sorting and conveying device that can perform visual recognition and classification, and achieve stable, separate conveying of different types of items. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a vision sorting conveyor belt with a correction mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A vision sorting conveyor belt with a correction mechanism is mounted on a frame and includes a vision device and a conveying device. The conveying device includes a linear slide and a conveying mechanism. The conveying mechanism is mounted on a slide of the linear slide. The moving direction of the linear slide and the conveying direction of the conveying mechanism are perpendicular to each other. The feed input end of the conveying mechanism is provided with a correction mechanism for aligning materials and limiting material deviation. The correction mechanism includes a fixed plate fixed to the bottom of the conveying mechanism. Rotating shafts are rotatably connected to both ends of the fixed plate. A connecting arm is fixedly mounted on the top of the rotating shaft. The end of the connecting arm is connected to a correction plate. Two correction plates are symmetrically arranged on both sides of the conveying mechanism. The bottom ends of the two rotating shafts are respectively connected to a linkage component. The linkage component is connected to an elastic reset component. The vision device is located above the conveying device and includes an industrial camera and a lighting device. The lighting device includes two lights symmetrically arranged on both sides of the industrial camera in a figure-eight configuration.

[0005] Furthermore, the linkage assembly includes a first connecting rod, a second connecting rod, and a connecting member. The first connecting rod is fixed to the bottom end of the rotating shaft. The two ends of the second connecting rod are respectively hinged to the first connecting rod and the connecting member. The ends of the two second connecting rods are respectively hinged to the two ends of the connecting member. The elastic reset member includes a movable rod, a fixed seat, and a spring. The fixed seat is disposed on a fixed plate. One end of the movable rod is fixed to the connecting member. The other end of the movable rod horizontally moves through the fixed seat and is provided with a limit plate. The spring is sleeved on the outside of the movable rod and is located between the fixed seat and the connecting member.

[0006] Furthermore, the first connecting rod is configured in an approximately L-shaped structure, while the second connecting rod is a straight rod structure.

[0007] Furthermore, the connector includes a horizontal portion and a vertical portion, the second connecting rod is hinged to the end of the horizontal portion, and the end of the movable rod is fixed to the vertical portion.

[0008] Furthermore, the correction plate includes a straight section and inclined sections located on both sides of the straight section. The inclined sections are inclined outward, so that the ends of the two correction plates are arranged in a figure-eight shape.

[0009] Furthermore, the lighting device also includes a lighting mounting bracket, which is fixed to the top of the frame. The bottom surface of the lighting mounting bracket includes a horizontal center section and inclined sides located on both sides of the horizontal center section. The inclined sides are provided with light-transmitting holes. L-shaped mounting pads are respectively provided at the four corners of the top outer edge of the light-transmitting holes. The lighting lamp is locked and fixed on the mounting pads. A camera aperture is provided in the horizontal center section. The industrial camera is located above the camera aperture, and the lens of the industrial camera faces the camera aperture.

[0010] Furthermore, the top of the frame is provided with two spaced-apart mounting beams, and a connecting beam is fixed between the two mounting beams. A camera mount is mounted on the connecting beam, and an industrial camera is fixed on the camera mount.

[0011] Furthermore, an operating platform is provided in the middle of the frame, and a top frame is provided on top of it. The conveying device is installed on the operating platform, and the vision device is fixed on the top frame.

[0012] Furthermore, the conveying mechanism includes two spaced and parallel side frames, with drive rollers rotatably connected between the front and rear ends of the two side frames respectively. A conveyor belt is sleeved on the outer side of the two drive rollers. A motor base is fixed on the outer side of one of the side frames, and a drive motor is fixedly installed on the inner side of the motor base. The motor shaft of the drive motor passes through the motor base and is fixedly connected to a drive wheel. The roller shaft of the corresponding drive roller extends outward through the side frame and is fixedly connected to a driven wheel. A drive belt is sleeved between the drive wheel and the driven wheel. Beneficial effects

[0013] Compared with the prior art, the present invention has at least the following advantages: 1. The correction mechanism, conveying device, and vision device of this utility model work together to complete the entire process of feeding correction, image acquisition and recognition, and classification and conveying. It has a high degree of automation, eliminates the need for manual sorting, and saves labor costs.

[0014] 2. This utility model achieves the diversion of items by using a linear slide table to drive the entire conveying mechanism to move laterally. It abandons the traditional sorting method of pushing materials with push rods and dropping them into the material frame. After being visually distinguished, the materials are smoothly transported to the corresponding workstations by the conveyor belt throughout the process.

[0015] 3. The first link, second link, fixed plate, connector, spring, movable rod, fixed seat, rotating shaft, connecting arm, and correction plate form a correction mechanism. The correction mechanism relies on the spring to automatically reset the correction plate, requiring no additional power source. It has a simple and reliable structure and is convenient for debugging and maintenance. When skewed material enters the conveyor belt, it squeezes the correction plate. After the spring is compressed and stores energy, it rebounds and drives the correction plate to reset. This applies a lateral thrust to the skewed material to complete the posture correction, ensuring that the material is conveyed in the center and accurately aligned with the industrial camera lens. This effectively reduces misjudgments caused by material deviation during image recognition and improves the accuracy of visual classification and recognition.

[0016] 4. The lighting device adopts figure-eight shaped lights arranged at an angle on both sides, which have a wide illumination coverage, can weaken the reflection of the material surface and the shadow of the shooting, further improve the clarity of image acquisition, and ensure stable recognition of the orientation features such as left and right feet and front and back of parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the conveying device and the vision device of this utility model.

[0019] Figure 3 This is a side view of the conveying device of this utility model.

[0020] Figure 4 This is an exploded structural diagram of the visual device of this utility model.

[0021] Figure 5 This is a schematic diagram of the corrective mechanism of this utility model.

[0022] Figure 6 This is a bottom view of the corrective mechanism of this utility model.

[0023] The diagram is labeled as follows: 1-Frame; 2-Operating table; 3-Mounting beam; 4-Vision device; 40-Connecting beam; 41-Camera mount; 42-Industrial camera; 43-Lighting mounting bracket; 430-Horizontal center; 431-Inclined side; 432-Light transmission hole; 433-Mounting pad; 434-Camera through-hole; 44-Lighting lamp; 5-Support column; 6-Linear slide; 60-Slide; 7-Transfer mechanism; 70-Side frame; 71-Driven wheel; 72-Active wheel 73-Wheel; 75-Motor base; 76-Drive motor; 77-Transmission roller; 78-Conveyor belt; 79-Transmission belt; 80-Correcting mechanism; 81-Fixing plate; 82-Rotating shaft; 83-Connecting arm; 84-Correction plate; 85-Straight section; 86-Inclined section; 87-First connecting rod; 88-Second connecting rod; 89-Connecting piece; 80-Vertical section; 81-Horizontal section; 80-Moving rod; 81-Limiting plate; 82-Spring; 83-Fixing seat. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] See Figures 1-6This embodiment provides a vision sorting conveyor belt with a correction mechanism, mounted on a frame 1, including a vision device and a conveying device. An operating table 2 is located in the middle of the frame 1, and a top frame is mounted above it. The conveying device is mounted on the surface of the operating table 2, and the vision device is fixedly mounted on the top frame. A computer is located at the bottom inner part of the frame.

[0028] The conveying device includes a linear slide table 6 and a conveying mechanism 7 for conveying materials. The bottom of the linear slide table 6 is provided with multiple support columns 5, the bottom ends of which are fixed to the surface of the operating table 2. The conveying mechanism 7 includes two spaced and parallel side frames 70. Drive rollers 76 are rotatably connected between the front and rear ends of the two side frames 70, respectively. A conveyor belt 77 is fitted around the outer sides of the two drive rollers 76. A motor base 73 is fixed to the outer side of one side frame 70. A drive motor 75 is fixedly installed on the inner side of the motor base 73. The motor shaft of the drive motor 75 passes through the motor base 73 and is fixedly connected to a drive wheel 72. The roller shaft of the corresponding drive roller 76 extends outward through the side frame 70 and is fixedly connected to a driven wheel 71. A drive belt 74 is fitted between the drive wheel 72 and the driven wheel 71. During operation, the drive motor 75 drives the drive wheel 72 to rotate. The drive wheel 72 drives the driven wheel 71 and the corresponding drive roller 76 to rotate synchronously via the transmission belt 74. The two drive rollers 76 cooperate to traction the conveyor belt 77 to achieve continuous conveying of items on the conveyor belt 77.

[0029] The two side frames 70 of the conveying mechanism 7 are mounted on the slide 60 of the linear slide table 6. The moving direction of the slide 60 of the linear slide table 6 is perpendicular to the conveying direction of the conveyor belt 77 of the conveying mechanism 7. The feeding input end of the conveying mechanism 7 is provided with a correction mechanism 8 for aligning the material and limiting the material deviation.

[0030] The correction mechanism 8 includes a fixing plate 80 fixed to the bottom of the feed end of the conveying mechanism 7. Specifically, the fixing plate 80 is locked to the side frame 70 of the conveying mechanism 7 by screws. Rotating shafts 81 are rotatably connected to both ends of the fixing plate 80. A connecting arm 82 is fixedly mounted on the top of the rotating shaft 81. A correction plate 83 is connected to the end of the connecting arm 82. The correction plate 83 includes a straight section 830 and inclined sections 831 located on the feed and discharge sides of the straight section 830. Both inclined sections 831 are inclined outwards, creating a V-shaped flared structure between the feed and discharge ends of the two correction plates 83. The two correction plates 83 are symmetrically arranged on the left and right sides of the conveying mechanism 7, and are located above the conveyor belt 77.

[0031] The bottom ends of the two rotating shafts are respectively connected to linkage components, and the linkage components are connected to elastic reset components. The linkage components include a first connecting rod 84, a second connecting rod 85, and a connecting member 86. The first connecting rod 84 has an approximately L-shaped structure and is fixedly disposed at the bottom end of the rotating shaft 81; the second connecting rod 85 has a straight rod structure, with its two ends hinged to the first connecting rod 84 and the connecting member 86 respectively, and the ends of the two second connecting rods 85 are respectively hinged to the two ends of the connecting member 86. The elastic reset component includes a movable rod 87, a spring 88, and a fixed seat 89. The fixed seat 89 is fixedly disposed on the side of the fixed plate 80, and one end of the movable rod 87 is fixedly disposed on the connecting member 86. The other end of the movable rod 87 horizontally moves through the fixed seat 89 and has a limit plate 870 at its outer end. The spring 88 is sleeved on the outside of the movable rod 87 and is located between the fixed seat 89 and the connecting member 86.

[0032] The connector 86 includes a horizontal part 861 and a vertical part 860. The two second connecting rods 85 are respectively hinged to the two ends of the horizontal part 861, and one end of the movable rod 87 is fixed to the vertical part 860.

[0033] When an item enters the feed input end of the conveying mechanism 7, it is guided through the figure-eight openings at the feed ends of the two correction plates 83 and enters between the two correction plates 83. When the item is conveyed at an angle, it will collide with and press against one or both correction plates 83, applying force to the correction plates 83. The correction plates 83 will drive the rotating shaft 81 to rotate, thereby causing the first connecting rod 84 and the second connecting rod 85 to swing in conjunction, causing the movable rod 87 to move along the fixed seat 89 and compress the spring 88 to store energy. Subsequently, through the elastic reset action of the spring 88, the first connecting rod 84, the second connecting rod 85 and the rotating shaft 81 will rotate back to reset, so that the correction plates 83 are reset and apply a lateral corrective thrust to the skewed item, automatically correcting the conveying posture of the item. The item is then smoothly delivered through the figure-eight flared opening at the discharge end of the correction plates 83, and is conveyed stably backward in a straight direction.

[0034] The vision device is located above the conveying device and includes an industrial camera 42 and a lighting device. The lighting device includes two lights 44 symmetrically arranged on both sides of the industrial camera 42. The two lights are arranged in a figure-eight shape to expand the light coverage area on the material surface and reduce shooting shadows and local reflections.

[0035] The lighting device also includes a lighting mounting bracket 43, which is fixed to the top frame above the frame 1. The bottom surface of the lighting mounting bracket 43 includes a horizontal center 430 and inclined side portions 431 located on both sides of the horizontal center 430. The inclined side portions 431 are provided with light-transmitting holes 432. L-shaped mounting pads 433 are respectively provided at the four corners of the top outer edge of the light-transmitting holes 432. The lighting lamp 44 is locked and fixed on the mounting pads 433. The horizontal center 430 is provided with a camera aperture 430.

[0036] The top frame of the frame 1 has two parallel and spaced-apart mounting beams 3, with a connecting beam 40 fixed between them. A camera mount 41 is mounted on the connecting beam 40, and an industrial camera 42 is fixed to the camera mount 41. The industrial camera 42 is located above a camera aperture 430, with its lens facing the camera aperture 430. When the conveying mechanism 7 is in its initial position, the lens of the industrial camera 430 is vertically aligned with the middle area of ​​the conveyor belt 77.

[0037] The industrial camera 42 is electrically connected to the computer. The material images captured by the industrial camera 42 are transmitted to the computer in real time. The computer's built-in recognition algorithm intelligently determines the material orientation and type, and outputs control signals to control the movement of the linear slide and conveyor mechanism.

[0038] In the initial state, the conveying mechanism 7 is located directly below the vision device. Taking a shoe as an example, the shoe is fed into the conveyor belt 77 from the inlet of the conveying mechanism 7. The shoe is then guided by the correction mechanism 8 to ensure it is centered on the conveyor belt 77 and precisely aligned with the lens of the industrial camera 72. The industrial camera 72 captures images of the shoe and transmits them to a computer located at the bottom of the machine frame. The computer then performs image recognition to determine the shoe's left or right orientation. If the shoe is identified as a left shoe, the linear slide 6 remains stationary, and the conveying mechanism 7 continues to convey the shoe forward to its designated station for subsequent processing. If the shoe is identified as a right shoe, the linear slide 6 drives the slide block 60 to move laterally, causing the entire conveying mechanism 7 to shift laterally. Once in position, the conveying mechanism 7 continues to convey the shoe to its designated station for the next processing step.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vision sorting conveyor belt with a correction mechanism, mounted on a frame, characterized in that, The system includes a vision device and a conveying device. The conveying device includes a linear slide and a conveying mechanism. The conveying mechanism is mounted on a slide of the linear slide. The moving direction of the linear slide and the conveying direction of the conveying mechanism are perpendicular to each other. The feed input end of the conveying mechanism is provided with a correction mechanism for aligning materials and limiting material deviation. The correction mechanism includes a fixed plate fixed to the bottom of the conveying mechanism. Rotating shafts are rotatably connected to both ends of the fixed plate. A connecting arm is fixedly provided at the top of the rotating shaft. The end of the connecting arm is connected to a correction plate. Two correction plates are symmetrically arranged on both sides of the conveying mechanism. The bottom ends of the two rotating shafts are respectively connected to a linkage component. The linkage component is connected to an elastic reset component. The vision device is located above the conveying device and includes an industrial camera and a lighting device. The lighting device includes two lights symmetrically arranged on both sides of the industrial camera. The two lights are arranged in a figure-eight pattern.

2. A vision sorting conveyor belt with a correction mechanism according to claim 1, characterized in that, The linkage assembly includes a first connecting rod, a second connecting rod, and a connecting member. The first connecting rod is fixed to the bottom end of the rotating shaft. The two ends of the second connecting rod are respectively hinged to the first connecting rod and the connecting member. The ends of the two second connecting rods are respectively hinged to the two ends of the connecting member. The elastic reset member includes a movable rod, a fixed seat, and a spring. The fixed seat is set on a fixed plate. One end of the movable rod is fixed to the connecting member. The other end of the movable rod moves horizontally through the fixed seat and is provided with a limit plate. The spring is sleeved on the outside of the movable rod and is located between the fixed seat and the connecting member.

3. A vision sorting conveyor belt with a correction mechanism according to claim 2, characterized in that, The first connecting rod is arranged in an approximately L-shaped structure, while the second connecting rod is a straight rod structure.

4. A vision sorting conveyor belt with a correction mechanism according to claim 2, characterized in that, The connector includes a horizontal part and a vertical part, the second connecting rod is hinged to the end of the horizontal part, and the end of the movable rod is fixed to the vertical part.

5. A vision sorting conveyor belt with a correction mechanism according to claim 1, characterized in that, The correction plate includes a straight section and inclined sections located on both sides of the straight section. The inclined sections are inclined outward, so that the ends of the two correction plates are arranged in a figure-eight shape.

6. A vision sorting conveyor belt with a correction mechanism according to claim 1, characterized in that, The lighting device also includes a lighting mounting bracket, which is fixed to the top of the frame. The bottom surface of the lighting mounting bracket includes a horizontal center and inclined sides on both sides of the horizontal center. The inclined sides are provided with light-transmitting holes. L-shaped mounting pads are provided at the four corners of the top outer edge of the light-transmitting holes. The lighting lamp is locked and fixed on the mounting pads. A camera aperture is provided in the horizontal center. The industrial camera is located above the camera aperture, and the lens of the industrial camera faces the camera aperture.

7. A vision sorting conveyor belt with a correction mechanism according to claim 1 or 6, characterized in that, The top of the frame is provided with two spaced-apart mounting beams, and a connecting beam is fixed between the two mounting beams. A camera mount is mounted on the connecting beam, and an industrial camera is fixed on the camera mount.

8. A vision sorting conveyor belt with a correction mechanism according to claim 1, characterized in that, An operating platform is provided in the middle of the frame, and a top frame is provided on top of it. The conveying device is set on the operating platform, and the vision device is fixed on the top frame.

9. A vision sorting conveyor belt with a correction mechanism according to claim 1, characterized in that, The conveying mechanism includes two spaced and parallel side frames. Drive rollers are rotatably connected between the front and rear ends of the two side frames. A conveyor belt is sleeved on the outer side of the two drive rollers. A motor base is fixed to the outer side of one of the side frames. A drive motor is fixedly installed on the inner side of the motor base. The motor shaft of the drive motor passes through the motor base and is fixedly connected to a drive wheel. The roller shaft of the corresponding drive roller extends outward through the side frame and is fixedly connected to a driven wheel. A drive belt is sleeved between the drive wheel and the driven wheel.

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