A cigarette appearance detection device with a turnover structure

Abstract

The present application relates to cigarette processing technical field, disclose a kind of cigarette appearance detection device with turnover structure, including bottom plate, first support frame, second support frame, casing, transmission mechanism, turnover mechanism, image detection mechanism and screening mechanism, first support frame, second support frame and casing are all fixedly installed on bottom plate, transmission mechanism includes first stepper motor, driving wheel, driven wheel, driving shaft is inserted in driving wheel, driven shaft is inserted in driven wheel, driving wheel and driven wheel are tensioned with conveyor belt, the outer surface of conveyor belt is equipped with several arc grooves, turnover mechanism includes second stepper motor, turnover roller, clamping arm and micro cylinder.The present application can be passed by arc groove and four pairs of clamping arm cooperation to realize the transmission of cigarette, micro cylinder realizes the clamping of cigarette, turnover roller drives cigarette rotation, three cameras shoot the cylindrical surface of cigarette into picture, image detection mechanism compares and analyzes picture.

Description

Technical Field

[0001] This invention belongs to the field of cigarette processing technology, and in particular relates to a cigarette appearance inspection device with a flipping structure. Background Technology

[0002] With the rapid development of automation technology, the industrial control sector has also placed new demands on automation. Especially in the tobacco industry, advanced automation technology can significantly improve production efficiency, enhance production quality, and improve production management. Currently, cigarette production is highly automated. On high-speed cigarette production lines with a rate of 120-200 cigarettes per second, due to environmental factors and equipment issues, cigarette appearance defects such as cigarette foam, oil stains, punctures, curled edges, filter detachment, short cigarettes, broken or damaged cigarettes, printing defects, and rolling defects may occur, resulting in substandard cigarettes. The presence of these substandard cigarettes affects the overall quality of cigarettes; therefore, it is necessary to inspect cigarettes for appearance defects on the production line. Currently, cigarette appearance inspection technology generally relies on manual inspection. This method requires a large amount of manpower and is susceptible to the influence of individual factors such as eyesight, mood, fatigue, and lighting, resulting in low inspection efficiency, large sorting differences, reduced enterprise production efficiency and economic benefits, and impacting the market competitiveness of tobacco companies. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a cigarette appearance inspection device with a flipping structure to solve the problem of detecting cigarette appearance defects on the cigarette production line.

[0004] This invention solves the above-mentioned technical problems through the following technical means: A cigarette appearance inspection device with a flipping structure, comprising a base plate, a first support frame, a second support frame, a housing, a transmission mechanism, a flipping mechanism, an image detection mechanism, and a screening mechanism. The first support frame, the second support frame, and the housing are all fixedly mounted on the base plate. The transmission mechanism includes a first stepper motor, a driving wheel, and a driven wheel. A driving shaft is inserted through the driving wheel. One end of the driving shaft is rotatably mounted on one end of the first support frame, and the other end of the driving shaft is fixedly connected to the output shaft of the first stepper motor. The first stepper motor is fixedly mounted on the first support frame. A driven shaft is inserted through the driven wheel, and both ends of the driven shaft are rotatably mounted on... On the second support frame, a conveyor belt is tensioned between the driving wheel and the driven wheel. The outer surface of the conveyor belt is provided with several arc-shaped grooves. The flipping mechanism includes a second stepper motor, a flipping roller, clamping arms, and a micro cylinder. The second stepper motor is fixedly mounted on the housing. The output shaft of the second stepper motor is fixedly connected to the flipping roller. Four pairs of clamping arms are evenly fixedly connected to the cylindrical end of the flipping roller. A micro cylinder is provided on the clamping arm away from the second stepper motor in each pair of clamping arms. The distance between the clamping arms is greater than the width of the conveyor belt. The image detection mechanism includes three cameras and three support members. The cameras are fixedly mounted on the support members, and the support members are fixedly mounted on the housing.

[0005] Furthermore, the screening mechanism includes a qualified cigarette recycling bin and a discarded cigarette recycling bin, both of which are fixedly installed on the base plate and placed side by side directly below the axis of the tilting roller. If the cigarette passes the appearance inspection, it will fall into the qualified cigarette recycling bin when it rotates to the right side of the lower semicircle; conversely, it will fall into the discarded cigarette recycling bin when it rotates to the left side of the lower semicircle.

[0006] Furthermore, the lower end of the qualified cigarette recycling box is a conical box with a gradually decreasing opening, the opening being just the right size for one cigarette to pass through, and a chute is provided at the opening. The gradually decreasing opening is to allow the cigarettes to fall one by one through the chute into the next process.

[0007] Furthermore, the angle between the three cameras' acquisition directions is 120°. Setting up three cameras at 120° angles allows for the even division of the cylindrical surface into three planes for imaging, resulting in more accurate image data.

[0008] Furthermore, the image detection mechanism also includes an object detection circuit, a central controller, an image storage system, an image retrieval system, and an image analysis system, all of which are installed inside the housing. The aforementioned object detection circuit, central controller, image storage system, image retrieval system, and image analysis system are all existing technologies.

[0009] Furthermore, the distance between two adjacent arc-shaped grooves on the conveyor belt is one-quarter of the circumference of the turning roller. Setting the distance between the arc-shaped grooves to one-quarter of the circumference of the turning roller ensures continuous transfer of cigarettes from the conveyor belt to the turning roller.

[0010] Furthermore, the camera and object detection circuit are electrically connected to the central controller, the central controller is electrically connected to the image storage system, the image storage system is electrically connected to the image retrieval system, and the image retrieval system is electrically connected to the image analysis system. The four miniature cylinders, the first stepper motor, and the second stepper motor are all electrically connected to the central controller.

[0011] The beneficial effects of this invention are as follows: This invention enables the transfer of cigarettes from the conveyor belt to the clamping arms through the cooperation of the arc-shaped groove on the conveyor belt and the four pairs of clamping arms on the flipping roller. The micro cylinders on the clamping arms clamp the cigarettes. The flipping roller drives the cigarettes to rotate. Three cameras with an angle of 120° capture images of the cylindrical surface of the cigarettes, obtaining images of the three cylindrical surfaces of the cigarettes. The image detection mechanism compares and analyzes the images to determine whether the appearance of the cigarettes is qualified. Then, the central controller controls the micro cylinders on the clamping arms to drop qualified cigarettes into the qualified cigarette recycling bin and unqualified cigarettes into the scrap cigarette recycling bin. Attached Figure Description

[0012] Figure 1 This is a front structural diagram of a cigarette appearance inspection device with a flipping structure according to the present invention.

[0013] Figure 2 This is a side view of a cigarette appearance inspection device with a flipping structure according to the present invention.

[0014] Figure 3 This is a circuit control diagram of a cigarette appearance inspection device with a flipping structure according to the present invention;

[0015] The components include: base plate 1, first support frame 2, second support frame 3, housing 4, conveyor belt 5, first stepper motor 6, drive wheel 7, driven wheel 8, drive shaft 9, driven shaft 10, arc-shaped groove 11, second stepper motor 12, tilting roller 13, clamping arm 14, miniature cylinder 15, camera 16, support component 17, central controller 18, qualified cigarette recycling box 19, scrapped cigarette recycling box 20, chute 21, and cigarette 22. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0017] The method of using this invention is as follows:

[0018] like Figures 1-3 As shown, this embodiment of a cigarette appearance inspection device with a flipping structure includes a base plate 1, a first support frame 2, a second support frame 3, a housing 4, a transmission mechanism, a flipping mechanism, an image detection mechanism, and a screening mechanism. The first support frame 2, the second support frame 3, and the housing 4 are all fixedly installed on the base plate 1. The transmission mechanism includes a first stepper motor 6, a drive wheel 7, and a driven wheel 8. A drive shaft 9 is inserted through the drive wheel 7. One end of the drive shaft 9 is rotatably installed on the first support frame 2, and the other end of the drive shaft 9 is fixedly connected to the output shaft of the first stepper motor 6. The first stepper motor 6 is fixedly installed on the first support frame 2. A driven shaft 10 is inserted through the driven wheel 8. Both ends of the driven shaft 10 are rotatably installed on the second support frame 3. A conveyor belt 5 is tensioned between the drive wheel 7 and the driven wheel 8. Several arc-shaped grooves 11 are provided on the outer surface of the conveyor belt 5.

[0019] The flipping mechanism includes a second stepper motor 12, a flipping roller 13, clamping arms 14, and a miniature cylinder 15. The second stepper motor 12 is fixedly mounted on the housing 4. The output shaft of the second stepper motor 12 is fixedly connected to the flipping roller 13. Four pairs of clamping arms 14 are evenly fixedly connected to the cylindrical end of the flipping roller 13. A miniature cylinder 15 is provided on the clamping arm 14 furthest from the second stepper motor 12 in each pair of clamping arms 14. The distance between the clamping arms 14 is greater than the width of the conveyor belt 5. The distance between two adjacent arc-shaped grooves 11 on the conveyor belt 5 is one-quarter of the circumference of the flipping roller 13.

[0020] The image detection mechanism includes three cameras 16 and three support members 17. The three cameras 16 are arranged with the rotating roller 13 as the center, with one camera 16 directly above the vertical axis of the rotating roller 13. The angle between the acquisition directions of the three cameras 16 is 120°. The cameras 16 are fixedly mounted on the support members 17, and the support members 17 are fixedly mounted on the housing 4. The image detection mechanism also includes an object detection circuit, a central controller 18, an image storage system, an image retrieval system, and an image analysis system, all of which are installed inside the housing 4. The aforementioned object detection circuit, central controller 18, image storage system, image retrieval system, and image analysis system are all existing technologies.

[0021] The screening mechanism includes a qualified cigarette recycling box 19 and a discarded cigarette recycling box 20. Both the qualified cigarette recycling box 19 and the discarded cigarette recycling box 20 are fixedly installed on the base plate 1. The qualified cigarette recycling box 19 and the discarded cigarette recycling box 20 are placed side by side directly below the axis of the turning roller 13. The lower end of the qualified cigarette recycling box 19 is a cone-shaped box with a gradually decreasing opening. The opening is just the size of one cigarette 22 that can pass through, and a chute 21 is provided at the opening.

[0022] The camera 16 and the object detection circuit are electrically connected to the central controller 18. The central controller 18 is electrically connected to the image storage system. The image storage system is electrically connected to the image retrieval system. The image retrieval system is electrically connected to the image analysis system. The four miniature cylinders 15, the first stepper motor 6, and the second stepper motor 12 are all electrically connected to the central controller 18.

[0023] The method of using this invention is as follows:

[0024] The cigarettes 22 on the production line are arranged in order and enter the arc-shaped groove 11 on the conveyor belt 5 in sequence. According to the order in which the cigarettes 22 enter the arc-shaped groove 11 on the conveyor belt 5, the cigarettes 22 in this example are named the first cigarette, the second cigarette, the third cigarette, the fourth cigarette, etc. The pair of clamping arms 14 located at the horizontal axis of the flip roller 13 and close to the conveyor belt 5 are named the first clamping arm. The miniature cylinder 15 on the first clamping arm is named the first miniature cylinder. The remaining three clamping arms are named the second clamping arm, the third clamping arm, and the fourth clamping arm in a counterclockwise order from the flip roller 13. The corresponding miniature cylinders 15 are named the second miniature cylinder, the third miniature cylinder, and the fourth miniature cylinder.

[0025] The central controller 18 controls the stepping speed of the first stepper motor 6, thereby controlling the movement cycle of the conveyor belt 5, and also controls the intermittent movement of the conveyor belt 5; the central controller 18 controls the rotation cycle of the tilting roller 13, and also controls the intermittent movement of the tilting roller 13; the central controller 18 controls the image capture cycle of the three cameras 16. Specifically, the movement cycle of the conveyor belt 5, the rotation cycle of the tilting roller 13, and the image capture cycle of the three cameras 16 are synchronized. That is, the conveyor belt 5 and the tilting roller 13 move and stop together; when the conveyor belt 5 and the tilting roller 13 stop together, the three cameras 16 capture images. The central controller 18 also controls the clamping and releasing of the micro-cylinder 15 under specific conditions.

[0026] Step 1: The central controller 18 controls the first stepper motor 6 and the second stepper motor 12 to move. The conveyor belt 5 rotates clockwise and the turning roller 13 rotates clockwise. The turning roller 13 drives all the clamping arms 14 to rotate. The conveyor belt 5 stops when the arc-shaped groove 11 with the first cigarette on it cooperates with the first clamping arm. That is, the first clamping arm and the arc-shaped groove 11 with the first cigarette move to the point where they coincide with the horizontal axis of the turning roller 13 and stop. After stopping, the central controller 18 controls the first micro cylinder to clamp the first cigarette.

[0027] Step 2: After the first step is completed, the central controller 18 controls the first stepper motor 6 and the second stepper motor 12 to continue moving. The conveyor belt 5 rotates clockwise and the flip roller 13 rotates clockwise. The flip roller 13 drives all the clamping arms 14 to rotate. When the first clamped cigarette is rotated with the first clamping arm to the position directly above the vertical axis of the flip roller 13, the movement stops. Three cameras 16 with an included angle of 120° are set with the flip roller 13 as the center. One of the cameras 16 is directly above the vertical axis of the flip roller 13. The three cameras 16 start taking pictures.

[0028] Step 3: After the first cigarette is photographed, the image is compared and analyzed with the standard image by the image detection mechanism, and the first cigarette is judged to be qualified. The judgment time is less than one-quarter of the time it takes for the flipping roller 13 to rotate.

[0029] Step 4: If the first cigarette is qualified, when the first cigarette rotates above the qualified cigarette recycling box 19, the central controller 18 controls the micro cylinder 15 to drop the first cigarette into the qualified cigarette recycling box 19. If the first cigarette is unqualified, when the first cigarette rotates above the scrap cigarette recycling box 20 with the flipping roller 13, the central controller 18 controls the micro cylinder 15 to drop the first cigarette into the scrap cigarette recycling box 20.

[0030] When the first clamped cigarette is rotated by the first clamping arm to a position directly above the vertical axis of the flipping roller 13, and the conveyor belt 5 and the flipping roller 13 stop moving, the arc-shaped groove 11 of the second cigarette on the conveyor belt 5 engages with the second clamping arm. The central controller 18 controls the second micro cylinder to clamp the second cigarette, and repeats the second, third, and fourth steps. The third cigarette and subsequent cigarettes continue to cycle through the first to third steps. Qualified cigarettes enter the next process through the chute 21 on the qualified cigarette recycling box 19.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A cigarette appearance inspection device with a flipping structure, characterized in that: It includes a base plate, a first support frame, a second support frame, a housing, a transmission mechanism, a flipping mechanism, an image detection mechanism, and a screening mechanism. The first support frame, the second support frame, and the housing are all fixedly mounted on the base plate. The transmission mechanism includes a first stepper motor, a drive wheel, and a driven wheel. A drive shaft is inserted through the drive wheel. One end of the drive shaft is rotatably mounted on one end of a first support frame, and the other end of the drive shaft is fixedly connected to the output shaft of the first stepper motor. The first stepper motor is fixedly mounted on the first support frame. A driven shaft is inserted through the driven wheel, and both ends of the driven shaft are rotatably mounted on a second support frame. A conveyor belt is tensioned between the drive wheel and the driven wheel. Several arc-shaped grooves are provided on the outer surface of the conveyor belt. The distance between two adjacent arc-shaped grooves on the conveyor belt is one-quarter of the circumference of the turning roller. The flipping mechanism includes a second stepper motor, a flipping roller, clamping arms, and a micro cylinder. The second stepper motor is fixedly mounted on the housing, and its output shaft is fixedly connected to the flipping roller. Four pairs of clamping arms are evenly fixedly connected to the cylindrical end of the flipping roller. A micro cylinder is provided on the clamping arm furthest from the second stepper motor in each pair of clamping arms. The distance between the clamping arms is greater than the width of the conveyor belt. The image detection mechanism includes three cameras and three support members. The cameras are fixedly mounted on the support members, and the support members are fixedly mounted on the housing. The image detection mechanism includes three cameras and three support components. The three cameras are set around the rotating roller, with one camera directly above the vertical axis of the rotating roller. The angle between the acquisition directions of the three cameras is 120°. The screening mechanism includes a qualified cigarette recycling box and a discarded cigarette recycling box. Both the qualified cigarette recycling box and the discarded cigarette recycling box are fixedly installed on the base plate. The lower end of the qualified cigarette recycling box is a cone-shaped box with a gradually decreasing opening. The opening is just the size of one cigarette that can pass through. A chute is provided at the opening. The qualified cigarette recycling box and the discarded cigarette recycling box are placed side by side directly below the axis of the turning roller. The image detection mechanism also includes a central controller, which controls the intermittent movement of the conveyor belt, the intermittent movement of the tumbling roller, and the image capture cycle of the three cameras. The movement cycle of the conveyor belt, the tumbling cycle of the tumbling roller, and the image capture cycle of the three cameras are consistent.

2. The cigarette appearance inspection device with a flipping structure according to claim 1, characterized in that: The image detection mechanism also includes an object detection circuit, a central controller, an image storage system, an image retrieval system, and an image analysis system, all of which are installed inside the casing. The object detection circuit, central controller, image storage system, image retrieval system, and image analysis system are all existing technologies.

3. The cigarette appearance inspection device with a flipping structure according to claim 2, characterized in that: The camera and object detection circuit are electrically connected to the central controller, the central controller is electrically connected to the image storage system, the image storage system is electrically connected to the image retrieval system, and the image retrieval system is electrically connected to the image analysis system. The four miniature cylinders, the first stepper motor, and the second stepper motor are all electrically connected to the central controller.

Images