A quality inspection device for printed tipping paper for cigarettes

Abstract

The present invention belongs to the technical field of tipping paper detection, and in particular relates to a quality detection device for printed cigarette tipping paper, which includes a mounting base, a camera, and a light source assembly. A guiding frame is provided on one side of the mounting base, and a sliding seat moves up and down closely against the inner wall of the guiding frame. A first air cylinder is arranged in the mounting base, and a first piston rod of the first air cylinder is connected to the sliding seat; a turntable is rotatably arranged on the inner wall of the sliding seat; three second air cylinders are evenly distributed on the circumference of the turntable, and a second piston rod of the second air cylinder is connected to the light source assembly. The tipping paper passes horizontally between two of the light source assemblies, and a camera is arranged above the light source assembly, and the shooting direction of the camera coincides with the center of the turntable. This detection device has an irradiation method with light sources arranged at multiple angles, which can meet the quality detection of tipping paper during high-speed transportation, can replace damaged light sources online, and can adjust the arrangement method of the light sources online to ensure continuous quality detection of cigarette tipping paper during high-speed transportation and avoid missed detection.

Description

Technical Field

[0001] The invention belongs to the technical field of tipping paper detection, and particularly relates to a quality detection device for printed cigarette tipping paper. Background Art

[0002] Tipping paper, also known as mouthpiece paper, is a packaging material for cigarettes and is specially used by cigarette factories as the outer packaging of filter tips, belonging to special industrial paper. Laser punching is carried out on the tipping paper, and at the same time, patterns and words representing the product brand are printed on the tipping paper. These patterns and words are important bases for distinguishing the brand specifications of cigarette sticks.

[0003] At the present stage, a large number of high-speed devices are adopted in the production of Chinese-style cigarettes. When punching and printing defects occur during the production process, since the operator cannot directly detect flaws and defects by the naked eye during the high-speed transmission of the tipping paper, cigarette sticks wrapped with tipping paper with quality problems frequently flow into the market, which has an adverse impact on the product and the credibility of the manufacturer.

[0004] Currently, when detecting the quality of cigarette tipping paper, generally a light source is arranged on the upper side, or the lower side, or both the upper and lower sides of the tipping paper, and then a laser detector or a high-speed camera is used for detection and analysis. During the quality detection process of cigarette tipping paper, the arrangement of the light source is crucial for the accuracy and effectiveness of the detection. However, for the current detection device, once a problem occurs with the light source during use, it is necessary to stop the machine for replacement, that is, to stop the high-speed transportation of the tipping paper, but this will undoubtedly affect the entire production process of the tipping paper. Another method is to replace the light source online. However, since the tipping paper continues to be transported during the time of replacing the light source, missed detections will occur. Summary of the Invention

[0005] Aiming at the technical problems existing in the background art, the invention provides a quality detection device for printed cigarette tipping paper that can replace the light source online and avoid missed detections.

[0006] To achieve the above object, the technical solution provided by the invention is as follows:

[0007] A quality inspection device for printed tipping paper for cigarettes, comprising a mounting base, a first cylinder, a sliding seat, a turntable, a second cylinder, a camera and a light source assembly. A guiding frame is arranged on one side of the mounting base. The sliding seat slides up and down closely along the inner wall of the guiding frame. A first cylinder is arranged inside the mounting base, and a first piston rod of the first cylinder is connected to the sliding seat. A turntable is rotatably arranged on the inner wall of the sliding seat. A driving mechanism is arranged on one side of the sliding seat, and the driving mechanism is used to drive the turntable to rotate. Three second cylinders are evenly distributed around the circumference of the turntable. A second piston rod of the second cylinder is connected to the light source assembly. The tipping paper passes horizontally between two of the light source assemblies. A camera is arranged above the light source assembly, and the shooting direction of the camera coincides with the center of the turntable.

[0008] Optionally, three arc-shaped adjustment slots are evenly distributed around the circumference of the turntable. The three adjustment slots are all arranged between the three second cylinders, and the adjustment slots are coaxially arranged with the second cylinders respectively. The light source assembly is detachably connected to a U-shaped clamping block. One end of the clamping block is provided with a plurality of sliding rods. An arc-shaped adjustment block is slidably arranged in the adjustment slot. A sliding hole corresponding to the sliding rod is opened in the adjustment block, and the sliding rod is slidably arranged in the sliding hole.

[0009] Optionally, arc-shaped sliding rings are respectively arranged on both sides of the adjustment block. The sliding rings are closely arranged along the outer wall of the sliding seat. A plurality of locking holes are opened in the sliding rings, and locking screws are threadedly connected in the locking holes.

[0010] Optionally, two sliding holes are symmetrically arranged. Three locking holes are opened. One of the locking holes is located on the inner ring edge of the sliding ring, and the other two locking holes are located on the outer ring edge of the sliding ring. And the locking hole located on the inner ring edge of the sliding ring is on the same axis as any one of the sliding holes and the locking holes.

[0011] Optionally, the light source assembly includes a housing and a light source. U-shaped mounting slots are opened at the top and both sides of the housing, and the clamping block is fitted in the mounting slot. A first flange is arranged on one side of the clamping block, and a second flange is arranged at the end of the second piston rod. The first flange and the second flange are connected by bolts.

[0012] Optionally, a connecting block is arranged on one side of the clamping block. The sliding rod is fixedly arranged on the connecting block, and a limiting block is detachably arranged at the end of the sliding rod.

[0013] Optionally, the driving mechanism includes a motor, a gear and a gear ring. A gear ring is arranged on one side of the turntable. The motor is arranged on one side of the sliding seat. The motor is connected to a transmission box for transmission. A gear transmission mechanism is arranged inside the transmission box. The gear transmission mechanism includes a gear, and the gear is meshed with the gear ring.

[0014] Optionally, when all three light source components are working, the light source component located below the tipping paper irradiates the tipping paper vertically upwards, and the light source component located below the tipping paper is directly opposite to the camera above the tipping paper; the two light source components above the tipping paper are symmetrically arranged on both sides of the camera, and the two light source components above the tipping paper irradiate the tipping paper vertically downwards, or irradiate the tipping paper obliquely towards the camera shooting direction.

[0015] Optionally, when one of the light source components is controlled by the second cylinder to contract and move away from the tipping paper, and the other two light source components are working, the two working light source components are symmetrically arranged on the upper and lower sides of the tipping paper and are staggered from the camera, and the two light source components on both sides of the tipping paper irradiate the tipping paper obliquely towards the camera shooting direction.

[0016] The present invention has the following advantages and beneficial effects:

[0017] In the present invention, the mutual positions of the three light source components are adjusted to ensure that the tipping paper can be irradiated by two or three light sources at various angles to meet the quality inspection of the tipping paper. When all three light source components are working, the light source component located below the tipping paper irradiates the tipping paper vertically upwards, and the light source component located below the tipping paper is directly opposite to the camera above the tipping paper; the two light source components above the tipping paper are symmetrically arranged on both sides of the camera, and the two light source components above the tipping paper irradiate the tipping paper vertically downwards, or irradiate the tipping paper obliquely towards the camera shooting direction. When one of the light source components is controlled by the second cylinder to contract and move away from the tipping paper, this light source is for backup or needs to be replaced due to damage. When the other two light source components are working, the two working light source components are symmetrically arranged on the upper and lower sides of the tipping paper and are staggered from the camera, and the two light source components on both sides of the tipping paper irradiate the tipping paper obliquely towards the camera shooting direction. Therefore, the detection device of the present invention has irradiation methods with various angles and various light source arrangements, which can all meet the quality inspection of the tipping paper during high-speed transportation, can replace damaged light sources online, and can adjust the light source arrangement method online to ensure continuous quality inspection of the cigarette tipping paper during high-speed transportation and avoid missed inspections. Description of the Drawings

[0018] Figure 1 One of the structural diagrams of the printing cigarette tipping paper quality detection device in the present invention;

[0019] Figure 2 is Figure 1 the front view of

[0020] Figure 3 Another structural diagram of the printing cigarette tipping paper quality detection device in the present invention;

[0021] Figure 4 is Figure 1 the partial enlarged view at position a in

[0022] Figure 5 is Figure 2 a sectional view along the A-A direction in

[0023] Figure 6 is Figure 5 a schematic diagram of the inclined illumination of two light source components on the upper side of the tipping paper in

[0024] Figure 7 is the third structural diagram of the quality detection device for printing tipping paper in the present invention;

[0025] Figure 8 is Figure 7 a sectional view of

[0026] Figure 9 is the structural diagram of the sliding seat and the driving mechanism in the present invention;

[0027] Figure 10 is one of the structural diagrams of the turntable in the present invention;

[0028] Figure 11 is another structural diagram of the turntable in the present invention;

[0029] Figure 12 is one of the structural diagrams of the second cylinder and the light source component in the present invention;

[0030] Figure 13 is another structural diagram of the second cylinder and the light source component in the present invention;

[0031] Figure 14 is one of the structural diagrams of the second cylinder and the chuck in the present invention;

[0032] Figure 15 is another structural diagram of the second cylinder and the chuck in the present invention;

[0033] Figure 16 is the structural diagram of the light source component in the present invention;

[0034] Figure 17 is the structural diagram of the adjusting block in the present invention;

[0035] Figure 18 is Figure 17 the front view of

[0036] Reference numerals: 1 - mounting base, 11 - guide frame, 12 - sliding groove, 13 - bracket, 14 - support plate, 15 - guide roller, 2 - camera, 3 - sliding seat, 31 - first mounting hole, 32 - slider, 33 - first piston rod, 34 - first cylinder, 4 - motor, 41 - transmission box, 42 - gear, 5 - turntable, 51 - second mounting hole, 52 - third mounting hole, 53 - first connection hole, 54 - adjustment groove, 55 - gear ring, 6 - second cylinder, 61 - third flange, 62 - second connection hole, 63 - second piston rod, 64 - second flange, 7 - clamping block, 71 - third connection hole, 72 - fourth connection hole, 73 - first flange, 74 - fifth connection hole, 75 - triangular rib plate, 76 - connection block, 77 - slide bar, 78 - limit block, 8 - housing, 81 - light source, 82 - mounting groove, 83 - sixth connection hole, 84 - seventh connection hole, 9 - adjustment block, 91 - sliding hole, 92 - sliding ring, 93 - locking hole, 10 - tipping paper. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment

[0040] As Figures 1 to 5 shown, a quality inspection device for printing tipping paper for cigarettes includes components such as a mounting base 1, a first cylinder 34, a sliding seat 3, a turntable 5, a second cylinder 6, a camera 2, and a light source assembly.

[0041] As Figures 1 to 5 , Figures 9 to 18 shown, a guide frame 11 is provided on one side of the mounting base 1. The guide frame 11 is rectangular in shape. Sliding grooves 12 are respectively provided on the inner walls of both sides of the guide frame 11. Sliders 32 are respectively provided on both sides of the sliding seat 3. The sliders 32 are slidably arranged in the sliding grooves 12. The sliding seat 3 slides up and down closely along the inner wall of the guide frame 11. Two first cylinders 34 are provided inside one end of the mounting base 1. The first piston rod 33 of the first cylinder 34 is connected to the sliding seat 3. The sliding seat 3 is driven to move up and down by the first cylinder 34.

[0042] As Figures 1 to 5As shown in the figure, an L-shaped bracket 13 is provided on the mounting base 1 to further strengthen the support strength of the guide frame 11, and the camera 2 is fixed at the bottom end of the bracket 13. The camera 2 can be a smart camera 2, which integrates shooting and image analysis. For example, the model of the smart camera 2 is Hikvision MV-CB013-20UMUC-S, and there is no need to externally connect an additional image processor. Of course, a high-speed camera 2 without image analysis function can also be used, such as the FASTCAM Nova series of high-speed cameras, and the pictures taken can be sent to a graphic analysis device.

[0043] As Figures 1 to 5 shown in the figure, support plates 14 are symmetrically arranged at the upper ends of both sides of the mounting base 1. Guide rollers 15 are rotatably arranged on the support plates 14, and the patch paper 10 is supported on the guide rollers 15 for stable conveyance. The camera 2 is arranged directly above the patch paper 10 to ensure the clarity of shooting.

[0044] As Figures 1 to 5 、 Figures 9 to 18 shown in the figure, a first mounting hole 31 is provided on the inner wall of the sliding seat 3. A turntable 5 is rotatably arranged on the inner wall of the first mounting hole 31. To facilitate smooth rotation, a bearing can be installed in the first mounting hole 31 to fix the turntable 5 through the bearing. A driving mechanism is arranged on one side of the sliding seat 3, and the driving mechanism is used to drive the turntable 5 to rotate.

[0045] As Figures 1 to 5 、 Figures 9 to 18 shown in the figure, three second cylinders 6 are evenly distributed on the circumference of the turntable 5. The second piston rod 63 of the second cylinder 6 is connected to the light source assembly. The patch paper 10 passes horizontally between two of the light source assemblies. A camera 2 is arranged above the light source assembly, and the shooting direction of the camera 2 coincides with the center of the turntable 5. Specifically: three second mounting holes 51 and three third mounting holes 52 are evenly distributed on the circumference of the turntable 5. The second mounting holes 51 and the third mounting holes 52 are coaxially arranged to form a stepped through hole. A number of first connecting holes 53 are evenly distributed on the inner wall of the bottom end of the second mounting hole 51, and the first connecting holes 53 are arranged outside the third mounting hole 52; one end of the second cylinder 6 is provided with a third flange 61, and a number of second connecting holes 62 are evenly distributed on the circumference of the third flange 61. The third flange 61 is fitted in the second mounting hole 51, and the second connecting holes 62 and the first connecting holes 53 are aligned with each other. By inserting bolts, the second cylinder 6 can be detachably fixed on the turntable 5. The second piston rod 63 extends out of the turntable 5 to the other side through the third mounting hole 52.

[0046] As Figures 1 to 5 、 Figures 9 to 18As shown in the figure, further, three arc-shaped adjustment grooves 54 are evenly distributed on the circumference of the turntable 5. The adjustment grooves 54 are coaxially arranged with the second mounting holes 51. The adjustment grooves 54 are arranged outside the second mounting holes 51. The three adjustment grooves 54 are all arranged between the three second cylinders 6, and the adjustment grooves 54 are respectively coaxially arranged with the second cylinders 6. The light source assembly is detachably connected to the U-shaped fixture block 7. One end of the fixture block 7 is provided with a plurality of sliding rods 77. An arc-shaped adjustment block 9 is slidably arranged in the adjustment groove 54. A sliding hole 91 corresponding to the sliding rod 77 is opened in the adjustment block 9, and the sliding rod 77 is slidably arranged in the sliding hole 91. With this structure, the sliding limit of the telescopic movement of the second piston rod 63 can be realized through the sliding rod 77, ensuring that the light source assembly can perform stable lateral telescopic movement. Secondly, the adjustment block 9 is designed. The adjustment block 9 can be slid to make it slide along the arc-shaped adjustment groove 54, thereby changing the angle of each light source assembly and realizing the selection of more irradiation angles. With this structure, by utilizing the rotatable function of the second piston rod 63 and the second cylinder 6, and using the sliding rod 77 and the adjustment block 9, the rotation angle adjustment of the light source assembly is realized, combining the functions of sliding guidance and angle adjustment, and further realizing an integrated and compact structural design.

[0047] As Figures 1 to 5 , Figures 9 to 18 shown in the figure, further, arc-shaped sliding rings 92 are respectively arranged on both sides of the adjustment block 9. The sliding rings 92 are closely attached to the outer wall of the sliding seat 3 to realize the limit of the adjustment block 9. A plurality of locking holes 93 are opened in the sliding rings 92. Locking screws are threadedly connected in the locking holes 93. After the position of the adjustment block 9 is adjusted, the adjustment block 9 can be fixed by screwing in the locking screws, realizing the fixation after the angle adjustment of the light source assembly.

[0048] As Figures 1 to 5 , Figures 9 to 18 shown in the figure, two sliding holes 91 are symmetrically arranged, and three locking holes 93 are opened. One of the locking holes 93 is located on the inner ring edge of the sliding ring 92, and the other two locking holes 93 are located on the outer ring edge of the sliding ring 92. The locking hole 93 located on the inner ring edge of the sliding ring 92 and any one of the sliding holes 91 and the locking holes 93 are on the same axis. In this way, the arrangement quantity and position of the locking holes 93 are optimized. One is arranged on the inner ring edge of the sliding ring 92, and two are arranged on the outer ring edge of the sliding ring 92. The three locking holes 93 are arranged in a triangular shape and are arranged outside the two sliding holes 91, and a more stable and reliable fixing effect can be realized with fewer locking holes 93.

[0049] As Figures 1 to 5 , Figures 9 to 18As shown, in the present invention, the light source assembly includes a housing 8 and a light source 81. The top and both sides of the housing 8 are provided with U-shaped mounting grooves 82. The shape of the clamping block 7 is the same as that of the mounting groove 82, and the clamping block 7 is fitted in the mounting groove 82. One side of the clamping block 7 is provided with a first flange 73, and a fifth connection hole 74 is provided on the first flange 73. The end of the second piston rod 63 is provided with a second flange 64, and the first flange 73 and the second flange 64 are connected by bolts. Among them, third connection holes 71 are provided on both sides of the clamping block 7, a fourth connection hole 72 is provided at the center of the upper side of the clamping block 7, sixth connection holes 83 are provided on the inner walls of both sides of the mounting groove 82, and a seventh connection hole 84 is provided at the center of the upper side of the mounting groove 82. When the clamping block 7 is fitted in the mounting groove 82, the sixth connection hole 83 is docked with the third connection hole 71, and the seventh connection hole 84 is docked with the fourth connection hole 72, and then screws are screwed in for fixation.

[0050] Furthermore, a connecting block 76 is provided on one side of the clamping block 7. A sliding rod 77 is fixedly arranged on the connecting block 76, and a limiting block 78 is detachably arranged at the end of the sliding rod 77 to prevent the sliding rod 77 from disengaging from the sliding hole 91. A triangular rib plate 75 is provided at the upper end of one side of the clamping block 7, and the triangular rib plate 75 is connected to the first flange 73, thereby strengthening the strength of the connection structure between the clamping block 7 and the first flange 73.

[0051] As Figures 1 to 5 、 Figures 9 to 18 shown, in the present invention, the driving mechanism includes a motor 4, a gear 42 and a gear ring 55. A gear ring 55 is provided on one side of the turntable 5. The motor 4 is arranged on one side of the sliding seat 3. The motor 4 is connected and transmitted with a transmission box 41. The transmission box 41 is fixed on the outer wall of the sliding seat 3. A gear transmission mechanism is arranged in the transmission box 41. The gear transmission mechanism includes at least two meshing gears 42. After being decelerated by the gear 42 transmission mechanism, one of the gears 42 is meshed and connected with the gear ring 55. By controlling the transmission of the gear 42 and the gear ring 55 by the motor 4, the turntable 5 is finally driven to rotate.

[0052] In the present invention, three light source assemblies are used to adjust the mutual positions (vertical distance and angle from the tipping paper), ensuring that light sources can irradiate the tipping paper 10 at multiple angles through two or three light sources to meet the quality inspection of the tipping paper 10.

[0053] As Figure 5 and Figure 6 shown, when all three light source assemblies are working, the light source assembly below the tipping paper 10 irradiates the tipping paper 10 vertically upward, and the light source assembly below the tipping paper 10 is directly opposite to the camera 2 above the tipping paper 10; the two light source assemblies above the tipping paper 10 are symmetrically arranged on both sides of the camera 2, and the two light source assemblies above the tipping paper 10 irradiate the tipping paper 10 vertically downward (as Figure 5as shown), or irradiate the tipping paper 10 obliquely in the shooting direction of the camera 2 (as Figure 6 shown). At this time, the inclination angle of the light source assembly is preferably 45 - 60 degrees. Figure 5 and Figure 6 give two preferred choices for the irradiation directions of the three light sources when the three light source assemblies are working.

[0054] As Figure 7 and 8 shown, when one of the light source assemblies is controlled by the second cylinder 6 to contract and move away from the tipping paper 10 to avoid movement interference with the tipping paper 10, and this light source is for backup or damaged and needs to be replaced, when the other two light source assemblies are working, the two working light source assemblies are symmetrically arranged on the upper and lower sides of the tipping paper 10 and are staggered with the camera 2, and the two light source assemblies on both sides of the tipping paper 10 irradiate the tipping paper 10 obliquely in the shooting direction of the camera 2. In this case, two light source assemblies are working, and one of them is for backup or in the state of replacing the light source. At this time, to ensure clear shooting, the two light sources are obliquely and symmetrically arranged on the upper and lower sides of the tipping paper 10 for irradiation. At this time, the inclination angle of the light source assembly is preferably 45 - 60 degrees.

[0055] In the present invention, the light source assembly can rotate and adjust the angle along the adjustment groove 54, and at the same time, the vertical distance between the light source assembly and the tipping paper 10 can be adjusted. The light sources 81 of the light source assembly are all white LED light sources and can adjust the light intensity to increase or decrease the transparency of the tipping paper 10 to cooperate with the detection of the camera 2 in different scenarios.

[0056] At the start of the detection, adjust the camera 2 to the appropriate working height position, and then adjust the relative position relationship of the three light source assemblies on the upper and lower sides of the tipping paper 10, which can be adjusted to Figure 5 or Figure 6 the state shown. Adjust the light intensity of the light source assembly to make the tipping paper reach an appropriate transparency so that the camera 2 can detect problems to the greatest extent. When the camera 2 finds defects or flaws such as no punching, blurred patterns, or unclear characters, it can take pictures in time to record the position, analyze and feedback to the computer control system for the operator to view in time.

[0057] As Figure 8 shown, during the continuous production and continuous quality detection of the tipping, when one of the light source assemblies has a problem and needs to be replaced online, at this time, control the second cylinder 6 to contract, quickly contract one of the light source assemblies away from the tipping paper 10, then control the turntable 5 to rotate, rotate the other two working light source assemblies to both sides of the tipping paper 10 and arrange them symmetrically, and at the same time, the angle of the corresponding light source assembly can also be finely adjusted to adapt to the shooting of the camera 2 under the working condition of the two light source assemblies, and continue to perform the quality detection of the tipping paper 10 while replacing the damaged light source assembly online.

[0058] Therefore, the detection device of the present invention has irradiation methods with various angles and various light source arrangements. With this kind of adjustment structure, it can always ensure that the light source components can be distributed on both sides of the tipping paper 10, ensuring that the transparency of the tipping paper after irradiation is adjustable, and can meet the quality inspection of the tipping paper 10 during high-speed transportation. It can replace damaged light sources online, or achieve one-for-many use, and adjust the light source arrangement method online to ensure continuous quality inspection of the tobacco tipping paper 10 during high-speed transportation, avoid missed inspections, and ensure the efficient production of the tipping paper 10.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A quality inspection device for printed tipping paper for cigarettes, characterized in that: It includes a mounting base, a first cylinder, a sliding seat, a turntable, a second cylinder, a camera and a light source assembly. A guide frame is provided on one side of the mounting base. The sliding seat slides up and down closely along the inner wall of the guide frame. A first cylinder is arranged inside the mounting base, and the first piston rod of the first cylinder is connected to the sliding seat. A turntable is rotatably arranged on the inner wall of the sliding seat. A driving mechanism is arranged on one side of the sliding seat, and the driving mechanism is used to drive the turntable to rotate. Three second cylinders are evenly distributed on the circumference of the turntable. The second piston rods of the second cylinders are connected to the light source assembly. The spliced paper passes horizontally between two of the light source assemblies. A camera is arranged above the light source assembly, and the shooting direction of the camera coincides with the center of the turntable. Three arc-shaped adjustment grooves are evenly distributed on the circumference of the turntable. The three adjustment grooves are all arranged between the three second cylinders, and the adjustment grooves are respectively coaxially arranged with the second cylinders. The light source assembly is detachably connected to a U-shaped block. One end of the block is provided with a number of sliding rods. An arc-shaped adjustment block is slidably arranged in the adjustment groove. A sliding hole corresponding to the sliding rod is formed in the adjustment block, and the sliding rod is slidably arranged in the sliding hole. Arc-shaped sliding rings are respectively arranged on both sides of the adjustment block, and the sliding rings are closely arranged along the outer wall of the sliding seat. A number of locking holes are formed in the sliding rings, and locking screws are threadedly connected in the locking holes. When one of the light source assemblies has a problem and needs to be replaced online, at this time, control the second cylinder to contract, quickly contract one of the light source assemblies away from the spliced paper, then control the turntable to rotate, rotate the other two working light source assemblies to both sides of the spliced paper and arrange them symmetrically. At the same time, the angle of the corresponding light source assembly can also be finely adjusted to adapt to the camera shooting under the work of the two light source assemblies, continue to detect the quality of the spliced paper, and replace the damaged light source assembly online at the same time.

2. The quality inspection device for printed tipping paper for cigarettes according to claim 1, wherein: Two sliding holes are symmetrically arranged. Three locking holes are formed. One of the locking holes is located on the inner ring edge of the sliding ring, and the other two locking holes are located on the outer ring edge of the sliding ring. The locking hole located on the inner ring edge of the sliding ring and any one side of the sliding hole and the locking hole are on the same axis.

3. The quality inspection device for printed tipping paper for cigarettes according to claim 1, characterized in that: The light source assembly includes a housing and a light source. U-shaped mounting grooves are formed in the top and both sides of the housing, and the block is fitted in the mounting groove. A first flange is arranged on one side of the block, and a second flange is arranged at the end of the second piston rod. The first flange and the second flange are connected by bolts.

4. The quality inspection device for printed tipping paper for cigarettes according to claim 3, wherein: A connecting block is arranged on one side of the block, the sliding rod is fixedly arranged on the connecting block, and a limiting block is detachably arranged at the end of the sliding rod.

5. The quality inspection device for printed tipping paper for cigarettes according to claim 1, characterized in that: The driving mechanism includes a motor, a gear and a gear ring. A gear ring is arranged on one side of the turntable. The motor is arranged on one side of the sliding seat. The motor is connected to a transmission box for transmission. A gear transmission mechanism is arranged in the transmission box. The gear transmission mechanism includes a gear, and the gear is meshed with the gear ring.

6. The quality inspection device for printed tipping paper for cigarettes according to claim 1, wherein: When all three light source components are working, the light source component below the tipping paper irradiates the tipping paper vertically upward, and the light source component below the tipping paper is directly opposite to the camera above the tipping paper; the two light source components above the tipping paper are symmetrically arranged on both sides of the camera, and the two light source components above the tipping paper irradiate the tipping paper vertically downward, or irradiate the tipping paper obliquely in the camera shooting direction.

7. The quality inspection device for printed tipping paper for cigarettes according to claim 1, characterized in that: When one of the light source components is controlled by the second air cylinder to contract and move away from the tipping paper, and the other two light source components are working, the two working light source components are symmetrically arranged on the upper and lower sides of the tipping paper and are staggered from the camera, and the two light source components on both sides of the tipping paper irradiate the tipping paper obliquely in the camera shooting direction.

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