A cigarette packet detection system based on C800 small box transparent paper packaging machine

Abstract

The utility model discloses a kind of cigarette packet detection systems based on C800 small box transparent paper packaging machine.The first camera, second camera, third camera and fourth camera of the system are electrically connected with image detection controller respectively;Image detection controller, encoder and camera light source stroboscopic brightening controller are electrically connected with PLC;First camera is used to photograph cigarette packet front surface, left side and rear surface;Second camera is used to photograph cigarette packet lower surface;Third camera is used to photograph cigarette packet right side;Fourth camera is used to photograph cigarette packet upper surface;The lens direction of first camera and the included angle of C800 small box transparent paper packaging machine front surface is 45 degrees, and the lens direction of third camera and the included angle of C800 small box transparent paper packaging machine front surface is 80 degrees.Through the technical scheme of the utility model, the imaging effect of each surface of C800 small box transparent paper packaging machine cigarette packet can be improved, and the accuracy of cigarette packet packaging quality inspection can be improved.

Description

Technical Field

[0001] This utility model relates to the field of image detection technology, and in particular to a cigarette pack detection system based on a C800 small box transparent paper packaging machine. Background Technology

[0002] Currently, the two different models of soft pack cigarette packaging machines, GDX6 and GDX6S, generally only have cigarette pack detection devices on the channel bridge between the main machine and the auxiliary machine. However, in daily production, defective cigarette packs often flow downstream. The main reason is that cigarette packs may be bundled together in the channel. Even if a packer is installed, it cannot completely prevent this. If defective cigarette packs are among them, they may flow downstream and cause quality accidents.

[0003] Furthermore, the movement of cigarette packs on the conveyor belt is unstable, especially when photographing soft-pack cigarettes. The cigarette packs sway up, down, left, and right, causing the position of the photographed image to change constantly. The camera's shooting angle on the conveyor belt is also very limited. Although it can photograph the five sides of the cigarette pack other than the bottom that is in contact with the belt, it will still photograph multiple sides of the cigarette pack at the same time. That is, the image includes multiple sides of the cigarette pack, resulting in poor imaging effect and inaccurate detection. Summary of the Invention

[0004] This invention provides a cigarette pack inspection system based on the C800 small box transparent paper packaging machine, which can solve the problems of poor imaging effect and inaccurate quality inspection of cigarette packs in existing packaging machines.

[0005] According to one aspect of the present invention, a cigarette pack detection system based on a C800 small box transparent paper packaging machine is provided, comprising: a PLC (Programmable Logic Controller), an image detection controller, an encoder, a camera light source flicker enhancement controller, a first camera, a second camera, a third camera, and a fourth camera.

[0006] Among them, the first camera, the second camera, the third camera and the fourth camera are electrically connected to the image detection controller; the image detection controller, the encoder and the camera light source flicker enhancement controller are electrically connected to the PLC.

[0007] The first camera is used to photograph the front, left, and rear surfaces of the cigarette pack; the second camera is used to photograph the bottom surface of the cigarette pack; the third camera is used to photograph the right side of the cigarette pack; and the fourth camera is used to photograph the top surface of the cigarette pack.

[0008] The lens of the first camera forms a 45-degree angle with the front surface of the C800 small box transparent paper packaging machine, and the lens of the third camera forms an 80-degree angle with the front surface of the C800 small box transparent paper packaging machine; the lens of the second camera is vertically upward, and the lens of the fourth camera is vertically downward.

[0009] Optionally, an optocoupler is installed between the rejection signal interface and the image capture trigger interface of the image detection controller.

[0010] Optionally, the first image output point of the PLC is electrically connected to the image detection controller via a first image trigger interface and the first image lighting interface of the camera light source strobe brightening controller; the second image output point of the PLC is electrically connected to the image detection controller via a second image trigger interface and the second image lighting interface of the camera light source strobe brightening controller; the third image output point of the PLC is electrically connected to the image detection controller via a third image trigger interface and the third image lighting interface of the camera light source strobe brightening controller; and the fourth image output point of the PLC is electrically connected to the image detection controller via a fourth image trigger interface and the fourth image lighting interface of the camera light source strobe brightening controller.

[0011] Optionally, the first camera rejection output interface of the image detection controller is connected to the first rejection input point of the PLC; the second camera rejection output interface of the image detection controller is connected to the second rejection input point of the PLC; the third camera rejection output interface of the image detection controller is connected to the third rejection input point of the PLC; and the fourth camera rejection output interface of the image detection controller is connected to the fourth rejection input point of the PLC.

[0012] Optionally, the PLC's automatic cigarette pack rejection signal output point can be electrically connected to the C800 small box transparent paper packaging machine.

[0013] Optionally, the PLC's rejection indicator trigger signal output point is electrically connected to the indicator light.

[0014] Optionally, the first, second, third, and fourth flash sources are LED lights; the fill light angles between the first flash source and the first camera, the second flash source and the second camera, the third flash source and the third camera, and the fourth flash source and the fourth camera are 30 to 45 degrees.

[0015] Optionally, the first, second, third, and fourth flash sources are ring lights.

[0016] The technical solution of this utility model embodiment comprises a cigarette pack detection system for a C800 small transparent paper packaging machine, consisting of a PLC, an image detection controller, an encoder, a camera light source strobe enhancement controller, a first camera, a second camera, a third camera, and a fourth camera. The first, second, third, and fourth cameras in the C800 small transparent paper packaging machine's cigarette pack detection system are electrically connected to the image detection controller, and the image detection controller, encoder, and camera light source strobe enhancement controller are electrically connected to the PLC. The lens direction of the first camera forms a 45-degree angle with the front surface of the C800 small transparent paper packaging machine, the lens direction of the third camera forms an 80-degree angle with the front surface of the C800 small transparent paper packaging machine, the lens of the second camera points vertically upward, and the lens of the fourth camera points vertically downward. The C800 small-box transparent paper packaging machine's cigarette pack inspection system boasts a high degree of automation. Through encoder angle signals linked with a PLC, it achieves precise timing synchronization for image triggering and light source control, ensuring consistency between inspection and production cycles. Furthermore, the system maintains a stable image capture position, employing four cameras that take turns capturing images of six surfaces of the cigarette pack to detect defects in the outer packaging. Directly facing the cigarette pack during image capture improves image quality and enhances inspection accuracy. Combined with light source strobe enhancement technology, it can clearly capture images even at high speeds, avoiding motion blur and adapting to the high-paced production demands of the line. This system solves the problems of poor imaging effects and inaccurate cigarette pack quality inspection found in existing packaging machines, improving the imaging effect of all surfaces of the cigarette pack and enhancing the accuracy of cigarette pack quality inspection.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A cigarette pack detection system for a C800 small box transparent paper packaging machine is provided as an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of a camera placement location provided in Embodiment 1 of the present utility model;

[0021] Figure 3This is a wiring diagram of a cigarette pack detection system for a C800 small box transparent paper packaging machine, provided as a second embodiment of the present invention. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] Example 1

[0025] Figure 1 This invention provides a cigarette pack detection system for a C800 small-box transparent paper packaging machine, as described in Embodiment 1 of the present invention. Figure 1 As shown, the cigarette pack detection system based on the C800 small box transparent paper packaging machine includes: a PLC, an image detection controller, an encoder, a camera light source strobe enhancement controller, a first camera, a second camera, a third camera, and a fourth camera; wherein, the first camera, the second camera, the third camera, and the fourth camera are electrically connected to the image detection controller; the image detection controller, the encoder, and the camera light source strobe enhancement controller are electrically connected to the PLC; the first camera is used to photograph the front surface, left side, and rear surface of the cigarette pack; the second camera is used to photograph the lower surface of the cigarette pack; the third camera is used to photograph the right side of the cigarette pack; and the fourth camera is used to photograph the upper surface of the cigarette pack; the lens direction of the first camera forms a 45-degree angle with the front surface of the C800 small box transparent paper packaging machine, and the lens direction of the third camera forms an 80-degree angle with the front surface of the C800 small box transparent paper packaging machine; the lens of the second camera is vertically upward, and the lens of the fourth camera is vertically downward.

[0026] The image detection controller controls the camera to take pictures. The camera light source flicker enhancement controller adjusts the instantaneous brightness of the light source. The image detection controller controls the taking pictures of the first, second, third, and fourth cameras, and is used to photograph different sides of the cigarette pack. The image detection controller may also have color recognition capabilities, distinguishing similar-colored areas on the cigarette pack, and positioning coordinate recognition capabilities, accurately identifying minute changes in the position of patterns on the cigarette pack. See [link to C800 small box transparent paper packaging machine] for the positions of the four cameras. Figure 2 .

[0027] In this embodiment of the invention, a cigarette pack detection system for a C800 small-box transparent paper packaging machine can be constructed using a PLC, an image detection controller, an encoder, a camera light source flicker enhancement controller, a first camera, a second camera, a third camera, and a fourth camera. The first, second, third, and fourth cameras are each electrically connected to the image detection controller. The image detection controller, encoder, and camera light source flicker enhancement controller are electrically connected to the PLC. The lens direction of the first camera forms a 45-degree angle with the front surface of the C800 small-box transparent paper packaging machine, and the lens direction of the third camera forms an 80-degree angle with the front surface of the C800 small-box transparent paper packaging machine. The lens of the second camera is vertically upward and horizontally adjacent to the conveyor belt shaft of the C800 small-box transparent paper packaging machine turret, located below the shaft. The lens of the fourth camera is vertically downward and located directly above the conveyor belt that transports the cigarette packs backward from the C800 small-box transparent paper packaging machine turret.

[0028] An encoder is additionally installed on the main drive wheel of the C800 small box transparent paper packaging machine. When the encoder recognizes the angle signal as the angle position set internally by the PLC, the PLC outputs a signal to control the image detection controller and the camera light source strobe enhancement controller to work, so that the first camera captures the front, left and back surfaces of the cigarette pack, the second camera captures the bottom surface of the cigarette pack, the third camera captures the right side of the cigarette pack, and the fourth camera captures the top surface of the cigarette pack.

[0029] For example, the lens of the second camera points vertically upwards, and the lens of the fourth camera points vertically downwards. The distance between the first camera and the turret of the C800 small box transparent paper packaging machine is 23 cm, the distance between the second camera and the turret is 18 cm, and the distance between the third camera and the turret is 10 cm. The first, second, and third cameras are positioned at heights of 96 cm, 83 cm, and 100 cm above the ground, respectively.

[0030] In a specific example, when the C800 small box transparent paper packaging machine is running, the PLC collects the angle signal from the encoder. When the C800 small box transparent paper packaging machine reaches the angle position set inside the PLC, the PLC outputs a trigger signal to the image detection controller and the camera light source strobe brightness controller. The image detection controller is connected to four cameras to take pictures of the six sides of the cigarette pack. The camera light source strobe brightness controller controls the light source to light up. The first picture is taken by the fourth camera of the top surface of the cigarette pack, the second picture is taken by the third camera of the right side of the cigarette pack, the third picture is taken by the first camera of the front surface of the cigarette pack, the fourth picture is taken by the first camera of the rear surface of the cigarette pack, the fifth picture is taken by the second camera of the bottom surface of the cigarette pack, and the sixth picture is taken by the first camera of the left side of the cigarette pack.

[0031] The technical solution of this utility model embodiment comprises a cigarette pack detection system for a C800 small transparent paper packaging machine, consisting of a PLC, an image detection controller, an encoder, a camera light source strobe enhancement controller, a first camera, a second camera, a third camera, and a fourth camera. The first, second, third, and fourth cameras in the C800 small transparent paper packaging machine's cigarette pack detection system are electrically connected to the image detection controller, and the image detection controller, encoder, and camera light source strobe enhancement controller are electrically connected to the PLC. The lens direction of the first camera forms a 45-degree angle with the front surface of the C800 small transparent paper packaging machine, the lens direction of the third camera forms an 80-degree angle with the front surface of the C800 small transparent paper packaging machine, the lens of the second camera points vertically upward, and the lens of the fourth camera points vertically downward. The C800 small-box transparent paper packaging machine's cigarette pack inspection system boasts a high degree of automation. Through encoder angle signals linked with a PLC, it achieves precise timing synchronization for image triggering and light source control, ensuring consistency between inspection and production cycles. Furthermore, the system maintains a stable image capture position, employing four cameras that take turns capturing images of six surfaces of the cigarette pack to detect defects in the outer packaging. Directly facing the cigarette pack during image capture improves image quality and enhances inspection accuracy. Combined with light source strobe enhancement technology, it can clearly capture images even at high speeds, avoiding motion blur and adapting to the high-paced production demands of the line. This system solves the problems of poor imaging effects and inaccurate cigarette pack quality inspection found in existing packaging machines, improving the imaging effect of all surfaces of the cigarette pack and enhancing the accuracy of cigarette pack quality inspection.

[0032] Example 2

[0033] This embodiment is a further refinement based on the above embodiments, and the technical terms that are the same as or corresponding to those in the above embodiments will not be repeated here.

[0034] In an optional embodiment of this utility model, an optocoupler is provided between the rejection signal interface and the image capture trigger interface of the image detection controller.

[0035] The rejection signal interface can be the interface through which the image detection controller outputs an abnormal image capture signal to the PLC. The image capture trigger interface can be the interface through which the image detection controller receives an image capture trigger signal from the PLC.

[0036] In this embodiment of the invention, an optocoupler can be installed between the rejection signal interface and the image capture trigger interface of the image detection controller to isolate electromagnetic interference between the interfaces.

[0037] In one optional embodiment of this utility model, the first image output point of the PLC is electrically connected to the image detection controller through a first image trigger interface and the first image lighting interface of the camera light source strobe enhancement controller; the second image output point of the PLC is electrically connected to the image detection controller through a second image trigger interface and the second image lighting interface of the camera light source strobe enhancement controller; the third image output point of the PLC is electrically connected to the image detection controller through a third image trigger interface and the third image lighting interface of the camera light source strobe enhancement controller; and the fourth image output point of the PLC is electrically connected to the image detection controller through a fourth image trigger interface and the fourth image lighting interface of the camera light source strobe enhancement controller.

[0038] The first image capture output point can be a port where the PLC sends a first camera image capture trigger signal to the image detection controller and the camera light source flicker enhancement controller. The second image capture output point can be a port where the PLC sends a second camera image capture trigger signal to the image detection controller and the camera light source flicker enhancement controller. The third image capture output point can be a port where the PLC sends a third camera image capture trigger signal to the image detection controller and the camera light source flicker enhancement controller. The fourth image capture output point can be a port where the PLC sends a fourth camera image capture trigger signal to the image detection controller and the camera light source flicker enhancement controller. The first image capture trigger interface can be an interface in the image detection controller that receives the first camera image capture trigger signal. The second image capture trigger interface can be an interface in the image detection controller that receives the second camera image capture trigger signal. The third image capture trigger interface can be an interface in the image detection controller that receives the third camera image capture trigger signal. The fourth image capture trigger interface can be an interface in the image detection controller that receives the fourth camera image capture trigger signal. The first image capture activation interface can be an interface in the camera light source flicker enhancement controller that receives the first camera trigger signal. The second image capture activation interface can be an interface in the camera light source flicker enhancement controller that receives the second camera trigger signal. The third photo-activation interface can be an interface for the camera light source strobe enhancement controller to receive a trigger signal from the third camera. The fourth photo-activation interface can be an interface for the camera light source strobe enhancement controller to receive a trigger signal from the fourth camera.

[0039] In this embodiment of the invention, the first image capture output point of the PLC is electrically connected to the image detection controller via a first image capture trigger interface and the first image capture illumination interface of the camera light source flicker enhancement controller. The first image capture output point of the PLC sends the first camera image capture trigger signal to the first image capture trigger interface and the first image capture illumination interface, so as to simultaneously illuminate the light source when the first camera takes a picture, making the picture clearer.

[0040] The second image capture output point of the PLC is electrically connected to the image detection controller via the second image capture trigger interface and the second image capture illumination interface of the camera light source flicker enhancement controller. The second image capture output point of the PLC sends the second camera image capture trigger signal to the second image capture trigger interface and the second image capture illumination interface.

[0041] The PLC's third image capture output point is electrically connected to the image detection controller via the third image capture trigger interface and the camera light source flicker enhancement controller's third image capture illumination interface. The PLC's third image capture output point sends the third camera image capture trigger signal to both the third image capture trigger interface and the third image capture illumination interface.

[0042] The PLC's fourth image capture output point is electrically connected to the image detection controller via the fourth image capture trigger interface and the fourth image capture illumination interface of the camera light source flicker enhancement controller. The PLC's fourth image capture output point sends the fourth camera image capture trigger signal to both the fourth image capture trigger interface and the fourth image capture illumination interface.

[0043] In an optional embodiment of this utility model, the first camera rejection output interface of the image detection controller is connected to the first rejection input point of the PLC; the second camera rejection output interface of the image detection controller is connected to the second rejection input point of the PLC; the third camera rejection output interface of the image detection controller is connected to the third rejection input point of the PLC; and the fourth camera rejection output interface of the image detection controller is connected to the fourth rejection input point of the PLC.

[0044] Specifically, the first camera rejection output interface can be used by the image detection controller to send a first camera detection anomaly signal to the PLC. The first rejection input point can be used by the PLC to receive the first camera detection anomaly signal. Similarly, the second camera rejection output interface can be used by the image detection controller to send a second camera detection anomaly signal to the PLC. The second rejection input point can be used by the PLC to receive the second camera detection anomaly signal. The third camera rejection output interface can be used by the image detection controller to send a third camera detection anomaly signal to the PLC. The third rejection input point can be used by the PLC to receive the third camera detection anomaly signal. The fourth camera rejection output interface can be used by the image detection controller to send a fourth camera detection anomaly signal to the PLC. The fourth rejection input point can be used by the PLC to receive the fourth camera detection anomaly signal.

[0045] In this embodiment of the invention, the first camera rejection output interface of the image detection controller is connected to the first rejection input point of the PLC to send the detection anomaly signal of the first camera to the first rejection input point. The second camera rejection output interface of the image detection controller is connected to the second rejection input point of the PLC to send the detection anomaly signal of the second camera to the second rejection input point. The third camera rejection output interface of the image detection controller is connected to the third rejection input point of the PLC to send the detection anomaly signal of the third camera to the third rejection input point. The fourth camera rejection output interface of the image detection controller is connected to the fourth rejection input point of the PLC to send the detection anomaly signal of the fourth camera to the fourth rejection input point.

[0046] In an optional embodiment of this utility model, the automatic cigarette pack rejection signal output point of the PLC is electrically connected to the C800 small box transparent paper packaging machine.

[0047] The automatic cigarette pack rejection signal output point can be the point where the PLC sends the automatic cigarette pack rejection signal to the C800 small box transparent paper packaging machine.

[0048] In an optional embodiment of this utility model, the manual cigarette pack rejection signal output point of the PLC is electrically connected to the C800 small box transparent paper packaging machine.

[0049] The manual cigarette pack rejection signal output point can be the point where the PLC sends a manual cigarette pack rejection signal to the C800 small box transparent paper packaging machine.

[0050] In an optional embodiment of this utility model, the trigger signal output point of the rejection indicator of the PLC is electrically connected to the indicator light.

[0051] Among them, the point where the indicator light trigger signal output is removed can be the point where the PLC sends the indicator light trigger signal.

[0052] In this embodiment of the invention, the PLC's rejection indicator trigger signal output point is electrically connected to the indicator light. The rejection indicator trigger signal output point sends a light-up trigger signal to the indicator light, thereby illuminating the indicator light to remind the staff to handle the situation when the cigarette pack is rejected.

[0053] In an optional embodiment of this utility model, a camera light source strobe enhancement controller is used to control the lighting of the first strobe light source, the second strobe light source, the third strobe light source, and the fourth strobe light source, respectively.

[0054] The first flash source is the light source for the first camera. The second flash source is the light source for the second camera. The third flash source is the light source for the third camera. The fourth flash source is the light source for the fourth camera.

[0055] In this embodiment of the invention, the camera light source strobe enhancement controller controls the illumination of the first strobe light source, the second strobe light source, the third strobe light source, and the fourth strobe light source, respectively.

[0056] In an optional embodiment of this utility model, the first stroboscopic flash source, the second stroboscopic flash source, the third stroboscopic flash source, and the fourth stroboscopic flash source are all LED lights; the fill light angle between the first stroboscopic flash source and the first camera, the fill light angle between the second stroboscopic flash source and the second camera, the fill light angle between the third stroboscopic flash source and the third camera, and the fill light angle between the fourth stroboscopic flash source and the fourth camera are 30 degrees to 45 degrees.

[0057] In this embodiment of the invention, if the first, second, third, and fourth flash sources are LED lights, then the first, second, third, and fourth flash sources are positioned in front of the corresponding camera, with the angle between them and the corresponding camera, i.e., the supplementary lighting angle, being between 30 and 45 degrees.

[0058] Optionally, if the first, second, third, and fourth flash sources are LED lights, the fill light angle can be aligned with the lens direction.

[0059] In an optional embodiment of this utility model, the first strobe light source, the second strobe light source, the third strobe light source, and the fourth strobe light source are ring lights.

[0060] In a specific example, such as Figure 3 As shown (pin / point numbers are not shown in the diagram), when the encoder detects that the C800 small box transparent paper packaging machine has reached the angle position set internally by the PLC, PLC output points Q0.2, Q0.3, Q0.4, Q0.5, Q0.6, and Q0.7 will sequentially output six photo trigger signals to the image detection controller and the camera light source strobe enhancement controller. The image detection controller is connected to four industrial cameras. The first, second, and third industrial cameras are located around the turret of the C800 small box transparent paper packaging machine, and the fourth industrial camera is installed directly above the cigarette pack output channel of the turret. The turret will suck up the cigarette pack and rotate it backward for transport. During the transport process, the four cameras will sequentially take photos of the six sides of the cigarette pack and control the LED light source to light up. When the cigarette pack reaches the first image capture phase, PLC output point Q0.2 outputs a high level to the image detection controller and camera light source strobe brightness controller. Industrial camera 4 captures an image of the upper surface of the cigarette pack. When a defect is detected, the image detection controller outputs a high-level signal to PLC input point I0.0. When the PLC receives the defect signal (i.e., the abnormal image capture signal), it accurately removes the defective cigarette pack according to the shift rejection number set in the internal program and controls the indicator light to illuminate to remind the operator. When the cigarette pack reaches the second image capture phase, PLC output point Q0.3 outputs a high level to the image detection controller and camera light source strobe brightness controller. The third industrial camera captures an image of the right side of the cigarette pack. When a defect is detected, the image detection controller outputs a high-level signal to PLC input point I0.1. When the PLC receives the defect signal, it accurately removes the defective cigarette pack according to the shift rejection number set in the internal program and controls the indicator light to illuminate to remind the operator.

[0061] When the cigarette pack reaches the third image capture phase, PLC output point Q0.4 outputs a high level to the image detection controller and camera light source strobe brightness controller. The first industrial camera captures an image of the front surface of the cigarette pack. When a defect is detected, the image detection controller outputs a high-level signal to PLC input point I0.2. Upon receiving the defect signal, the PLC accurately removes the defective cigarette pack according to the shift rejection number set in its internal program and controls the indicator light to illuminate to remind the operator. When the cigarette pack reaches the fourth image capture phase, PLC output point Q0.5 outputs a high level to the image detection controller and camera light source strobe brightness controller. The first industrial camera captures an image of the rear surface of the cigarette pack. When a defect is detected, the image detection controller outputs a high-level signal to PLC input point I0.3. Upon receiving the defect signal, the PLC accurately removes the defective cigarette pack according to the shift rejection number set in its internal program and controls the indicator light to illuminate to remind the operator.

[0062] When the cigarette pack reaches the fifth image capture phase, PLC output point Q0.6 outputs a high level to the image detection controller and camera light source strobe brightness controller. The second industrial camera captures an image of the lower surface of the cigarette pack. When a defect is detected, the image detection controller outputs a high-level signal to PLC input point I0.4. Upon receiving the defect signal, the PLC accurately removes the defective cigarette pack according to the shift rejection number set in its internal program and controls the indicator light to illuminate to remind the operator. When the cigarette pack reaches the sixth image capture phase, PLC output point Q0.7 outputs a high level to the image detection controller and camera light source strobe brightness controller. Industrial camera 1 again captures an image of the left side of the cigarette pack. When a defect is detected, the image detection controller outputs a high-level signal to PLC input point I0.5. Upon receiving the defect signal, the PLC accurately removes the defective cigarette pack according to the shift rejection number set in its internal program and controls the indicator light to illuminate to remind the operator.

[0063] A PLC, image detection controller, and camera light source flicker enhancement controller are installed in the electrical cabinet of the C800 small box transparent paper packaging machine. The PLC, image detection controller, and camera light source flicker enhancement controller are powered by 24V positive and 24V negative voltages. PLC input point I0.0 is connected to the OUT6 output of the image detection controller's external terminal block to collect the defect signal detected by the fourth camera. PLC input point I0.1 is connected to the OUT7 output of the image detection controller's external terminal block to collect the defect signal detected by the third camera. PLC input point I0.2 is connected to the OUT8 output of the image detection controller's external terminal block to collect the first defect signal detected by the first camera. PLC input point I0.3 is connected to the OUT9 output of the image detection controller's external terminal block to collect the second defect detected by the first camera. PLC input point I0.4 is connected to the OUT10 output of the image detection controller's external terminal block to collect the second defect detected by the second camera. PLC input point I0.5 is connected to the OUT11 output of the image detection controller's external terminal block to collect the third defect detected by the first camera.

[0064] Connect PLC output point Q0.2 to the F_IN5 input of the external terminal block of the image detection controller to control the fourth camera to trigger a photo capture. Connect PLC output point Q0.3 to the F_IN4 input of the external terminal block of the image detection controller to control the third camera to trigger a photo capture. Connect PLC output point Q0.4 to the F_IN3 input of the external terminal block of the image detection controller to control camera 1 to trigger a photo capture for the first time. Connect PLC output point Q0.5 to the F_IN2 input of the external terminal block of the image detection controller to control camera 1 to trigger a photo capture for the second time. Connect PLC output point Q0.6 to the F_IN1 input of the external terminal block of the image detection controller to trigger a photo capture for the second camera. Connect PLC output point Q0.7 to the F_IN0 input of the external terminal block of the image detection controller to trigger a photo capture for the third time.

[0065] The technical solution of this utility model embodiment comprises a cigarette pack detection system for a C800 small transparent paper packaging machine, consisting of a PLC, an image detection controller, an encoder, a camera light source strobe enhancement controller, a first camera, a second camera, a third camera, and a fourth camera. The first, second, third, and fourth cameras in the C800 small transparent paper packaging machine's cigarette pack detection system are electrically connected to the image detection controller, and the image detection controller, encoder, and camera light source strobe enhancement controller are electrically connected to the PLC. The lens direction of the first camera forms a 45-degree angle with the front surface of the C800 small transparent paper packaging machine, the lens direction of the third camera forms an 80-degree angle with the front surface of the C800 small transparent paper packaging machine, the lens of the second camera points vertically upward, and the lens of the fourth camera points vertically downward. The C800 small-box transparent paper packaging machine's cigarette pack inspection system boasts a high degree of automation. Through encoder angle signals linked with a PLC, it achieves precise timing synchronization for image triggering and light source control, ensuring consistency between inspection and production cycles. Furthermore, the system maintains a stable image capture position, employing four cameras that take turns capturing images of six surfaces of the cigarette pack to detect defects in the outer packaging. Directly facing the cigarette pack during image capture improves image quality and enhances inspection accuracy. Combined with light source strobe enhancement technology, it can clearly capture images even at high speeds, avoiding motion blur and adapting to the high-paced production demands of the line. This system solves the problems of poor imaging effects and inaccurate cigarette pack quality inspection found in existing packaging machines, improving the imaging effect of all surfaces of the cigarette pack and enhancing the accuracy of cigarette pack quality inspection.

[0066] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0067] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A cigarette packet detection system based on a C800 carton transparent paper packing machine, characterized in that, include: Programmable Logic Controller (PLC), image detection controller, encoder, camera light source flicker enhancement controller, first camera, second camera, third camera, and fourth camera; The first camera, the second camera, the third camera, and the fourth camera are each electrically connected to the image detection controller; the image detection controller, the encoder, and the camera light source flicker enhancement controller are electrically connected to the PLC. The first camera is used to photograph the front, left, and rear surfaces of the cigarette pack; the second camera is used to photograph the lower surface of the cigarette pack; the third camera is used to photograph the right side of the cigarette pack; and the fourth camera is used to photograph the upper surface of the cigarette pack. The lens of the first camera forms a 45-degree angle with the front surface of the C800 small box transparent paper packaging machine, and the lens of the third camera forms an 80-degree angle with the front surface of the C800 small box transparent paper packaging machine; the lens of the second camera points vertically upward, and the lens of the fourth camera points vertically downward.

2. The system of claim 1, wherein, An optocoupler is installed between the rejection signal interface and the image capture trigger interface of the image detection controller.

3. The system of claim 1, wherein, The first image output point of the PLC is electrically connected to the image detection controller through the first image trigger interface and the first image lighting interface of the camera light source strobe brightening controller. The second image output point of the PLC is electrically connected to the image detection controller through the second image trigger interface and the second image lighting interface of the camera light source strobe brightening controller. The third image output point of the PLC is electrically connected to the image detection controller through the third image trigger interface and the third image lighting interface of the camera light source strobe brightening controller. The fourth image output point of the PLC is electrically connected to the image detection controller through the fourth image trigger interface and the fourth image lighting interface of the camera light source strobe brightening controller.

4. The system of claim 1, wherein, The first camera rejection output interface of the image detection controller is connected to the first rejection input point of the PLC. The second camera rejection output interface of the image detection controller is connected to the second rejection input point of the PLC; The third camera rejection output interface of the image detection controller is connected to the third rejection input point of the PLC; The fourth camera rejection output interface of the image detection controller is connected to the fourth rejection input point of the PLC.

5. The system of claim 1, wherein, The PLC's automatic cigarette pack rejection signal output point is electrically connected to the C800 small box transparent paper packaging machine.

6. The system of claim 1, wherein, The manual cigarette pack rejection signal output point of the PLC is electrically connected to the C800 small box transparent paper packaging machine.

7. The system of claim 1, wherein, The PLC's rejection indicator trigger signal output point is electrically connected to the indicator light.

8. The system of claim 1, wherein, The camera light source strobe enhancement controller is used to control the lighting of the first strobe light source, the second strobe light source, the third strobe light source, and the fourth strobe light source, respectively.

9. The system of claim 8, wherein, The first strobe light source, the second strobe light source, the third strobe light source, and the fourth strobe light source are all LED lights. The fill light angles between the first strobe light source and the first camera, the second strobe light source and the second camera, the third strobe light source and the third camera, and the fourth strobe light source and the fourth camera are between 30 and 45 degrees.

10. The system of claim 8, wherein, The first strobe light source, the second strobe light source, the third strobe light source, and the fourth strobe light source are all ring lights.

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