A cigarette box appearance defect detection system

Abstract

The present invention relates to a cigarette box appearance defect detection system, which relates to the field of detection technology. During the conveying process, an industrial camera photographs each outer surface of the cigarette box, while a lighting device provides uninterrupted light input to the industrial camera. The industrial camera transmits the photographed data to a processing device, which compares the received data with pre-stored standard data. If a deviation is found from the standard data, a command is output to a logic controller, which controls the activation of a cylinder to push the defective cigarette box off the conveyor, thereby preventing cigarette boxes with appearance defects from entering the market. When the processing device receives data that differs from the pre-stored standard cigarette box appearance data, it transmits a photo of the defective cigarette box appearance to a display device in real time, providing real-time reminders to workers in upstream processes.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a cigarette box appearance defect detection system. Background Art

[0002] An appearance image is printed on the outer surface of the cigarette box. If there are defects in the position, color, shape of the image and the shape of the cigarette box, the packaging qualification rate of the cigarette box will be reduced.

[0003] The current solution is manual inspection, where quality inspectors check each side of the cigarette boxes on the conveyor line and pick out those with defects in the appearance and shape of the cigarette boxes. However, quality inspectors who use this method are prone to fatigue when performing a large amount of mechanical work, and the cigarette boxes are conveyed at a relatively fast speed on the conveyor line. As a result, defective cigarette boxes enter the market, resulting in low inspection efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a cigarette box appearance defect detection system to improve the intelligence level of cigarette box appearance defect detection and improve detection efficiency.

[0005] The present invention solves the above-mentioned technical problems through the following technical means: a cigarette box appearance defect detection system, comprising a conveyor platform for transmitting cigarette boxes; and industrial cameras respectively installed on the upper and lower sides and front and rear sides of the conveyor platform, the industrial cameras being used to collect appearance data of cigarette boxes; and lighting equipment installed around the industrial cameras, the lighting equipment providing light input to the industrial cameras; and a processing device electrically connected to the industrial camera, the processing device being used to receive, store and calculate the appearance data of cigarette boxes collected by the industrial camera; and a logic controller electrically connected to the processing device, the logic controller being used to make feedback commands to the calculated data of the processing device; and a cylinder electrically connected to the logic controller, the cylinder being used to execute execution commands output by the logic controller; and a display device electrically connected to the processing device, the display device being installed at an upstream process position of the conveyor platform.

[0006] Furthermore, the conveyor platform includes a first section, a second section and a baffle. The second section is located below the tail end of the first section, and the baffle is located above the second section. There is a gap between the side of the baffle and the tail end of the first section, and there is a gap between the end of the baffle facing the second section and the front of the second section. Industrial cameras are fixed on the upper and lower sides and front and back sides of the first section respectively, and industrial cameras are also fixed on the upper and lower sides of the second section.

[0007] The cigarette box completes the appearance defect inspection of the front, back, top and bottom four surfaces on the first section, and then continues to be transported to the tail end. The cigarette box then falls from the gap between the tail end and the baffle, and completes an 80-degree rotation during the falling process. The cigarette box finally falls to the second section, where the appearance defect inspection of the remaining two uninspected surfaces is completed.

[0008] Furthermore, a concave mirror is provided on the outer side of the lighting device, and the reflective surface of the concave mirror faces the area of ​​the industrial camera.

[0009] The concave mirror is used to focus the light emitted by the lighting equipment toward the industrial camera, which increases the amount of light entering the industrial camera, making the photos clearer and the results of detecting cigarette box defects more accurate.

[0010] Furthermore, the cylinder is located on the second section and on a side of the industrial camera away from the first section, and a recovery box is provided below the cylinder.

[0011] After completing the appearance defect detection on all sides of the cigarette box in the second section, the processor compares the data and outputs a command to the cylinder through the logic controller to push the defective cigarette box into the recycling box, making it easier to recycle the defective cigarette box.

[0012] Furthermore, a dust suction pipe is installed on the conveying platform, and the dust suction pipe is directed towards the industrial camera.

[0013] Use the vacuum tube to regularly suck away the dust near the industrial camera to prevent dust from adhering to the surface of the industrial camera and affecting the accuracy of photos.

[0014] Furthermore, a top plate is welded on the telescopic rod of the cylinder, and the top plate is located at the end of the telescopic rod of the cylinder.

[0015] The top plate can increase the contact area between the cylinder and the cigarette box, thereby preventing the cigarette box from being damaged when the cylinder pushes out the cigarette box.

[0016] Furthermore, the cigarette box appearance defect detection system also includes a memory, and the memory is electrically connected to the processing device.

[0017] The data uploaded by industrial cameras to the processing equipment is stored through the memory, making it convenient for enterprises to establish their own industrial database.

[0018] The beneficial effects of the present invention are as follows: cigarette boxes are transported by a conveyor platform, and during the transportation process, industrial cameras take pictures of various outer surfaces of the cigarette boxes. At the same time, lighting equipment provides uninterrupted light input to the industrial camera. The industrial camera transmits the photographed data to the processing equipment, and the processing equipment compares the received data with pre-stored standard data. When a deviation from the standard data is found, a command is output to the logic controller, and the logic controller controls the cylinder to start and push the defective cigarette box from the conveyor platform, thereby preventing cigarette boxes with appearance defects from entering the market.

[0019] In addition, when the processing equipment receives data that is different from the pre-stored standard cigarette box appearance data, it will transmit the defective cigarette box appearance photo to the display device in real time, and provide real-time reminders to workers in the upstream process to facilitate workers' improvements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a cigarette box appearance detection system of the present invention;

[0021] Figure 2 This is a front view of a cigarette box appearance inspection system of the present invention;

[0022] Figure 3 This is a circuit diagram of a cigarette box appearance detection system according to the present invention;

[0023] Among them: 100-cigarette box appearance defect detection system, 10-conveyor platform, 11-first section, 12-second section, 13-blocking plate, 20-industrial camera, 30-lighting equipment, 31-concave mirror, 40-processing equipment, 50-logic controller, 60-cylinder, 70-display device, 80-recovery box, 90-dust suction pipe, 110-top plate, 120-storage. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and are only schematic diagrams, not actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0025] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] like Figures 1 to 3As shown, a cigarette box appearance defect detection system 100 of the present invention includes a conveyor platform 10 fixed to the factory floor. The conveyor platform 10 is rotated by a motor-driven belt. The belt is made of transparent tape. The conveyor platform 10 includes a first section 11, a second section 12, and a baffle 13. The second section 12 is located below the rear end of the first section 11. The baffle 13 is located above the second section 12. There is a gap between the side of the baffle 13 and the rear end of the first section 11. There is a gap between the end of the baffle 13 facing the second section 12 and the second section 12. The gap between the baffle 13 and the first section 11 is slightly larger than the thickness of the cigarette box. A cigarette box to be inspected is placed on a belt on the upper surface of the first section 11. The cigarette box moves along the first section 11 toward the second section 12. An industrial camera 20 is fixed to each of the upper, lower, front, and rear directions of the first section 11. The industrial camera 20 located above the first section 11 photographs the upper surface of the cigarette box, the industrial camera 20 located below the first section 11 photographs the lower surface of the cigarette box through a transparent belt, the industrial camera 20 located directly in front of the first section (i.e., facing away from the operator) photographs the surface directly in front of the cigarette box, and the industrial camera 20 located directly behind the first section (i.e., facing the operator) photographs the rear outer surface of the cigarette box. The industrial camera 20 can be a CCD camera. As the cigarette box is transported from the first section 11 to the rear end, the cigarette box first completes photographing the appearance of the four sides of the cigarette box during its movement along the first section 11.

[0027] A lighting device 30 is fixed above each of the first section 11 and the second section 12. The lighting device 30 can be an LED lamp. Using a cold light source can prevent the cigarette box from being burned. The activation of the LED lamp ensures that the CCD camera has uninterrupted light input.

[0028] When the cigarette box reaches the end of the first section 11, it transitions from being parallel to the upper surface of the first section 11 to being perpendicular to it, and falls through the gap between the first section 11 and the barrier 13 to the second end. The gap between the barrier 13 and the second section 12 is larger than the width of the cigarette box, allowing it to rotate 90 degrees from the first section 11 and fall onto the second section 12 for continued transport. A CCD camera is affixed to the upper and lower sides of the second section 12 to capture the remaining two unphotographed surfaces of the cigarette box.

[0029] A processing device 40 is connected to the CCD camera via a wired network. The processing device 40 can be a computer. After the CCD camera completes taking pictures of the six sides of the cigarette box, the pictures are compressed into data and transmitted to the computer. The computer stores the received real-time appearance picture data of the cigarette box and compares it with the qualified appearance picture data of the cigarette box preset in the computer.

[0030] A logic controller 50, which is a programmable logic controller (PLC), is connected to the computer via a wired network. If the image data of the cigarette pack received by the computer differs from the pre-stored image data of qualified cigarette packs, it indicates that the cigarette pack passing through the CCD camera has defects and is unqualified. The computer then sends a command to the PLC to remove the unqualified cigarette packs.

[0031] The cylinder 60 is connected to the logic controller 50 via a wired network. After receiving the command output by the computer, the PLC controls the cylinder 60 to start through the edited program, so that the telescopic rod of the cylinder 60 pushes the defective cigarette box out of the second section 12, preventing the defective cigarette box from entering the market. The whole process is automatic and has the characteristics of high intelligence and fast detection speed.

[0032] A display device 70 is connected to the computer via a wireless network. The display device 70 can be a mobile phone, which is held by the process leader who produces cigarette boxes. The computer transmits the received defective appearance pictures of cigarette boxes that do not match the preset standard appearance picture data of cigarette boxes to the mobile phone, and reminds the cigarette box production department in real time of the location of defective products, so as to facilitate rapid improvement and reduce the cost increase caused by defective cigarette boxes.

[0033] Specifically, a concave mirror 31 is provided on the outside of the lighting device 30, and the reflective surface of the concave mirror 31 faces the area of ​​the industrial camera 20. The concave mirror 31 reflects light to the area around the industrial camera 20, increasing the brightness around the industrial camera 20 and improving the quality of the photos taken by the industrial camera 20.

[0034] Specifically, the cylinder 60 is located on the second section 12, on the side of the industrial camera 20 away from the first section 11. A recycling box 80 is located below the cylinder 60. After all exterior surfaces of cigarette packs have been photographed on the second section 12, the cylinder 60 executes a command to push cigarette packs with cosmetic defects from the second section 12 into the recycling box 80, facilitating their recycling.

[0035] Specifically, a dust collection tube 90 is mounted on the conveyor platform 10 and faces the industrial camera 20. One end of the dust collection tube faces the industrial camera 20, and the other end is connected to an exhaust fan. Driven by a motor, the exhaust fan rotates, expelling air, creating a negative pressure in the dust collection tube, which removes dust near the industrial camera 20 and prevents dust from adhering to the surface of the industrial camera 20 and affecting the accuracy of the photos.

[0036] Specifically, further, a top plate 110 is welded on the telescopic rod of the cylinder 60, and the top plate 110 is located at the end of the telescopic rod of the cylinder 60. The top plate 110 can increase the contact area with the cigarette box, thereby preventing the cigarette box from being damaged when the cylinder 60 pushes out the cigarette box.

[0037] Specifically, the cigarette box appearance defect detection system 100 also includes a memory 120, which is electrically connected to the processing device 40. The memory 120 uses a hard disk to store data uploaded from the industrial camera 20 to the processing device 40, making it easier for enterprises to build their own industrial databases.

[0038] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalents shall be encompassed by the claims of the present invention. Any techniques, shapes, and structures not described in detail herein are well known.

Claims

1. A cigarette box appearance defect detection system, characterized by: including a conveyor platform for transporting cigarette boxes; And, industrial cameras installed on the upper, lower, front and rear sides of the conveyor platform; and, lighting equipment installed around industrial cameras; and, a processing device electrically connected to the industrial camera; and, a logic controller electrically connected to the processing device; and, a cylinder electrically connected to the logic controller; and a display device electrically connected to the processing equipment; the conveying platform includes a first section, a second section and a baffle, the second section is located below the tail end of the first section, the baffle is located above the second section, there is a gap between the side of the baffle and the tail end of the first section, and there is a gap between the end of the baffle facing the second section and the second section, the industrial cameras are fixed on the upper and lower sides and the front and back sides of the first section respectively, and the industrial cameras are also fixed on the upper and lower sides of the second section; the cylinder is located on the second section and on the side of the industrial camera away from the first section, and a recovery box is provided under the cylinder; the conveying platform is rotated by a motor-driven belt, and the belt is made of transparent tape; the gap between the baffle and the first section is slightly larger than the thickness of the cigarette box, so that the cigarette box rotates 90 degrees from the first section and falls to the second section to continue conveying.

2. The cigarette box appearance defect detection system according to claim 1, characterized in that: A concave mirror is provided on the outer side of the lighting device, and the reflecting surface of the concave mirror faces the area of ​​the industrial camera.

3. The cigarette box appearance defect detection system according to claim 1 or 2, characterized in that: A dust suction pipe is installed on the conveying platform, and the dust suction pipe is directed toward the industrial camera.

4. The cigarette box appearance defect detection system according to claim 3, characterized in that: A top plate is welded on the telescopic rod of the cylinder, and the top plate is located at the end of the telescopic rod of the cylinder.

5. The cigarette box appearance defect detection system according to claim 1, characterized in that: The cigarette box appearance defect detection system further includes a memory, which is electrically connected to the processing device.

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