Cigarette filter tip laser drilling on-line detection device

Abstract

The utility model discloses a cigarette filter tip laser drilling on-line detection device, which is arranged at the downstream of a cigarette making and tipping unit and comprises a box body, a cigarette conveying device, an image acquisition unit, a rejecting device and a control terminal, a cigarette receiving groove is arranged at the top end of the box body, a cigarette outlet is arranged at the bottom end of the cigarette receiving groove, the cigarette conveying device is arranged in the box body, and the image acquisition unit is arranged in the box body. Comprising a driving assembly and a conveying belt in transmission connection with the driving assembly, and an image acquisition unit comprises a first acquisition camera and a second acquisition camera which are arranged above and below the conveying belt respectively, a light source arranged on one side of the conveying belt, and an image processor electrically connected with the first acquisition camera, the second acquisition camera and the light source; the removing device is arranged on one side of the conveying belt and located at the end, away from the cigarette outlet, of the light source, the control terminal is electrically connected to the driving assembly, the image processor, the removing device and the cigarette making and tipping unit, and the technical problems that in the prior art, due to the fact that cigarette laser drilling is detected through manual sampling inspection, efficiency is low, and accuracy is not high are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette production, and particularly relates to an online detection device for laser perforation of cigarette filters. Background Art

[0002] Currently in cigarette production lines, cigarette filters have a laser punching production process. Since the laser punching of cigarettes is carried out online, the laser punching equipment may accidentally be contaminated by the laser head, resulting in the loss of laser holes in the formed cigarettes or changes in the laser aperture, thereby producing unqualified waste cigarettes.

[0003] At present, most domestic cigarette factories adopt the method of manually sampling a few cigarettes at irregular intervals for observation to check the laser drilling of cigarette filters. However, this manual sampling method is inefficient and inaccurate. It is impossible to reflect the laser drilling quality of the entire cigarette through the test results of limited sampled cigarettes. In addition, since the filters of some varieties of cigarettes are white or yellow, it is difficult to accurately distinguish the laser drilling with the naked eye, further reducing the accuracy of the detection. Utility Model Content

[0004] The purpose of the utility model is to provide an online detection device for laser perforation of cigarette filter tips, so as to overcome the technical problems in the prior art of using manual sampling to detect laser perforation of cigarette filter tips, resulting in low detection efficiency and low detection accuracy of laser perforation of cigarette filter tips. The specific technical solution is as follows:

[0005] A device for online detection of laser perforation of cigarette filter tips, comprising a box body, the box body being arranged downstream of a cigarette rolling and joining unit, the box body being provided with a cigarette conveying device, the side of the cigarette conveying device being provided with a rejecting device, and the box body being provided with an image acquisition unit and a control terminal;

[0006] The top of the box body is provided with a cigarette receiving groove which is recessed toward the inside thereof, and the bottom of the cigarette receiving groove is provided with a smoke outlet, and the cigarettes to be tested conveyed by the cigarette rolling and connecting unit fall into the cigarette receiving groove and are discharged one by one from the smoke outlet;

[0007] The image acquisition unit includes a first acquisition camera, a second acquisition camera, a light source and an image processor, wherein the first acquisition camera and the second acquisition camera are respectively arranged above and below the cigarette conveying device, and the detection end is aimed at the cigarette to be tested;

[0008] The control terminal is electrically connected to the cigarette conveying device, the image acquisition unit and the rejection device, and the control terminal is used to control the cigarette conveying device, the image acquisition unit and the rejection device.

[0009] Preferably, the cigarette receiving slot is a trapezoidal structure, the top surface area of ​​the cigarette receiving slot is larger than the bottom surface area of ​​the cigarette receiving slot, and the smoke outlet is arranged on the bottom surface of the cigarette receiving slot.

[0010] Preferably, the cigarette conveying device includes a driving assembly and a conveyor belt, wherein the conveyor belt is arranged on the driving assembly, and the conveyor belt is driven by the driving assembly to convey cigarettes. The conveyor belt is arranged below the smoke outlet, and a plurality of cigarette receiving grooves are evenly arranged on the conveyor belt.

[0011] Preferably, the driving assembly includes a first transmission roller, a second transmission roller, a bracket and a driving motor;

[0012] The bracket is mounted inside the box, the first transmission roller and the second transmission roller are rotatably connected to two ends of the bracket respectively, the output end of the driving motor is transmission-connected to the first transmission roller, and the transmission belt is wound around the first transmission roller and the second transmission roller;

[0013] The driving motor is electrically connected to the control terminal.

[0014] Preferably, a smoke outlet drum wheel is further provided at one end of the conveyor belt away from the smoke outlet, and the smoke outlet drum wheel is transmission-connected to the second transmission roller via a transmission assembly;

[0015] The transmission assembly comprises a driving wheel, a driven wheel and a transmission bar, the driving wheel is connected to the second transmission roller, the driven wheel is connected to the smoke outlet drum wheel, and the transmission bar is wound around the driving wheel and the driven wheel.

[0016] Preferably, a rejected cigarette collection drawer is also provided at the bottom of the box body, a gravity sensor is provided at the bottom of the rejected cigarette collection drawer, a supporting plate is provided at the top of the gravity sensor, and the gravity sensor is electrically connected to the control terminal.

[0017] Preferably, it further comprises an alarm device, wherein the alarm device is electrically connected to the control terminal.

[0018] Preferably, the rejection device is a MAC high frequency bullet valve.

[0019] Preferably, the first acquisition camera and the second acquisition camera are both industrial line array cameras.

[0020] Preferably, the light source is a white light point light source.

[0021] Compared with the existing technology, the utility model has the following beneficial effects:

[0022] The utility model provides an online detection device for laser perforation of cigarette filter tip, the detection device is provided with an image acquisition unit to detect the cigarette to be tested in the transmission process, preferably, by arranging a light source on one side of the conveyor belt, the light source is vertically irradiated into the filter tip of the cigarette to be tested, and the light is scattered outward from the laser perforation of the filter tip of the cigarette to be tested, and the recognition of the laser perforation is improved by internal lighting, and the upper end image and the lower end image of the filter tip of the cigarette to be tested are respectively acquired by a first acquisition camera and a second acquisition camera respectively arranged above and below the conveyor belt, and the images are processed and analyzed by an image processor, and the analysis results are transmitted to a control terminal, and the control terminal controls a rejection device to reject abnormal cigarettes, thereby solving the technical problems in the prior art of using manual sampling to detect the laser perforation of cigarette filter tip, resulting in low detection efficiency and low detection accuracy of the laser perforation of cigarette filter tip. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will briefly introduce the drawings required for the description of the embodiment. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a schematic diagram of the plane structure of the utility model.

[0025] Figure 2 yes Figure 1 A is a partial enlarged schematic diagram of the middle part.

[0026] Figure 3 yes Figure 1 A partial enlarged schematic diagram of B in the figure.

[0027] Description of main reference numerals:

[0028] 100-box, 110-cigarette receiving slot, 111-smoke outlet, 120-rejected cigarette collection drawer, 121-gravity sensor, 122-carrying plate, 200-cigarette conveying device, 210-conveying belt, 211-cigarette placing slot, 220-first transmission roller, 230-second transmission roller, 231-driving wheel, 240-bracket, 250-driving motor, 300-rejecting device, 310-rejecting bracket, 400-cigarette to be tested, 500-first collection camera, 510-first camera bracket, 600-second collection camera, 610-second camera bracket, 700-light source, 710-light source bracket, 800-smoke outlet drum wheel, 810-driven wheel, 820-transmission bar, 900-alarm device. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0033] Example

[0034] like Figures 1 to 3 As shown, an embodiment of the present application provides an online detection device for laser perforation of cigarette filters, which is arranged downstream of a cigarette rolling and connecting machine, and includes a box body 100, a cigarette conveying device 200, an image acquisition unit, a rejection device 300, a control terminal and a smoke outlet drum wheel 800.

[0035] The cigarette rolling and connecting machine is an existing cigarette production equipment in a cigarette factory, and the box body 100 is made of an opaque material so that the interior of the box body 100 forms a "darkroom" with relatively dim light.

[0036] The top of the box body 100 is provided with a cigarette receiving groove 110 which is recessed toward the inside of the box body 100 , and the bottom of the cigarette receiving groove 110 is provided with a smoke outlet 111 . The cigarette receiving groove 110 is used to receive the cigarettes 400 to be tested conveyed from the cigarette rolling machine.

[0037] Preferably, the cigarette receiving slot 110 is a trapezoidal structure, the top surface area of ​​the cigarette receiving slot 110 is larger than the bottom surface area of ​​the cigarette receiving slot 110 , and the smoke outlet 111 is arranged on the bottom surface of the cigarette receiving slot 110 .

[0038] Among them, the top surface of the cigarette receiving slot 110 is flush with the top surface of the box body 100, and the cigarette 400 to be tested enters the cigarette receiving slot 110 from the top surface of the cigarette receiving slot 110 and leaves the cigarette receiving slot 110 from the smoke outlet 111. Preferably, in order to prevent the cigarette 400 to be tested from being blocked in the cigarette receiving slot 110, an oscillation device (not shown in the figure) can be provided on the outer groove wall of the cigarette receiving slot 110, and the oscillation device can be an ultrasonic oscillation device.

[0039] The cigarette conveying device 200 is arranged inside the box body 100, and includes a driving component and a conveyor belt 210. The conveyor belt 210 is transmission-connected to the driving component. The conveyor belt 210 is located below the smoke outlet 111, and a plurality of cigarette slots 211 are evenly spaced on its outer end surface. The width of the conveyor belt 210 is smaller than the length of the cigarette 400 to be tested, and the driving component is electrically connected to the control terminal.

[0040] Preferably, the driving assembly includes a first transmission roller 220, a second transmission roller 230, a bracket 240 and a driving motor 250. The bracket 240 is mounted inside the box body 100. The first transmission roller 220 and the second transmission roller 230 are respectively rotatably connected to the two ends of the bracket 240. The driving motor 250 is drivingly connected to the first transmission roller 220. More preferably, the driving motor 250 is drivingly connected to the first transmission roller 220 via a coupling. The conveyor belt 210 is wound around the first transmission roller 220 and the second transmission roller 230. The driving motor 250 is electrically connected to the control terminal. The vertical distance between the bottom end face of the cigarette receiving groove 110 and the upper end face of the conveyor belt 210 is defined as H, the groove depth of the cigarette placing groove 211 is h, and the diameter of the cigarette 400 to be tested is D, then H<D<H+h is satisfied.

[0041] The driving motor 250 drives the first transmission roller 220 to rotate, and the first transmission roller 220 drives the conveyor belt 210 to rotate around the first transmission roller 220 and the second transmission roller 230, so as to transport the cigarette 400 to be tested on the conveyor belt 210 toward the end away from the smoke outlet 111. By setting H<D<H+h, the cigarette 400 to be tested will fall from the cigarette receiving slot 110 only when the cigarette placing slot 211 moves to the bottom of the smoke outlet 111, so as to ensure that if The spacing between the cigarettes 400 to be tested is equal, which is convenient for the rear end to detect the cigarettes 400 to be tested and improves the stability of rejecting the abnormal cigarettes 400 to be tested. By setting the width of the conveyor belt 210 to be smaller than the length of the cigarettes 400 to be tested, the filters of the cigarettes 400 to be tested can protrude laterally from the conveyor belt 210, which makes it convenient for the image acquisition unit to capture images of the laser holes on the filters of the cigarettes 400 to be tested and for the rejection device 300 to reject the abnormal cigarettes 400 to be tested.

[0042] The image acquisition unit includes a first acquisition camera 500, a second acquisition camera 600, a light source 700 and an image processor. The first acquisition camera 500 and the second acquisition camera 600 are respectively arranged above and below the conveyor belt 210, and are both vertically aligned with the filter of the cigarette to be tested 400 located on the conveyor belt 210. The light source 700 is arranged on one side of the conveyor belt 210 and vertically irradiates the filter of the cigarette to be tested 400 along the axial direction of the cigarette to be tested 400 located on the conveyor belt 210. The first acquisition camera 500, the second acquisition camera 600, the light source 700 and the control terminal are all electrically connected to the image processor.

[0043] Preferably, the first acquisition camera 500 is arranged above one side of the conveyor belt 210 through a first camera bracket 510, the first camera bracket 510 is connected to the box 100, the second acquisition camera 600 is arranged below one side of the conveyor belt 210 through a second camera bracket 610, the second camera bracket 610 is connected to the bracket 240, the first acquisition camera 500, the second acquisition camera 600 and the filter of the cigarette 400 to be tested are all located on the same side of the conveyor belt 210, and the light source 7 00 is arranged on one side of the conveyor belt 210 through a light source bracket 710, and the other end of the light source bracket 710 is connected to the bracket 240. The light source 700 and the cigarette to be tested 400 located on the conveyor belt 210 are located at the same horizontal height. The first acquisition camera 500, the second acquisition camera 600 and the light source 700 are located in a plane perpendicular to the bottom end of the box 100. The first acquisition camera 500 and the second acquisition camera 600 are both industrial linear array cameras, and the light source 700 is a white light point light source.

[0044] Among them, by setting the light source 700 as a white light point light source, and setting the interior of the box 100 as a "darkroom" space with relatively dim light, the light-dark contrast between the laser-punched area of ​​the cigarette 400 to be tested and the surrounding environment is improved, thereby improving the clarity of the images captured by the first acquisition camera 500 and the second acquisition camera 600, and finally improving the detection accuracy of the laser punching of the cigarette 400 to be tested. The first acquisition camera 500 collects a first image of the upper part of the filter of the cigarette 400 to be tested, and the second acquisition camera 600 collects a second image of the lower part of the filter of the cigarette 400 to be tested. The first image and the second image are processed and analyzed by the image processor. If the sum of the light-emitting points in the first image and the second image collected is less than the preset number of laser punchings, and the spacing between adjacent light-emitting points is different from the preset standard value of hole spacing, the image processor sends a trigger rejection signal to the control terminal.

[0045] The rejecting device 300 is disposed on one side of the conveyor belt 210 and is located at an end of the light source 700 away from the smoke outlet 111 . The rejecting device 300 is electrically connected to the control terminal.

[0046] Preferably, the rejection device 300 is arranged on one side of the conveyor belt 210 through a rejection bracket 310, and the rejection bracket 310 is connected to the bracket 240. The rejection device 300 is a MAC high-frequency bullet valve. When in use, the rejection device 300 receives a rejection signal from the control terminal to reject the abnormal cigarettes 400 to be tested.

[0047] The smoke outlet drum wheel 800 is arranged at one end of the conveyor belt 210 away from the smoke outlet 111, and the smoke outlet drum wheel 800 is connected to the second transmission roller 230 through a transmission component. The transmission component includes a driving wheel 231, a driven wheel 810 and a transmission bar 820. The driving wheel 231 is connected to the second transmission roller 230, the driven wheel 810 is connected to the smoke outlet drum wheel 800, and the transmission bar 820 is wound around the driving wheel 231 and the driven wheel 810.

[0048] The smoke outlet drum 800 is provided with a rotating shaft, and the other end of the rotating shaft is rotatably connected to the housing 100 through a bearing, and is connected to an external negative pressure air source, so that the cigarette 400 to be tested can be adsorbed on the peripheral side of the smoke outlet drum 800 through negative pressure air. The structural principle of the negative pressure air passing through the smoke outlet drum 800 and the cigarette adsorption part is the prior art and will not be repeated here. The smoke outlet drum 800 is used to adsorb the cigarette 400 to be tested that has passed the test from the conveyor belt 210 and In the back-end process of conveying, the driving wheel 231 and the driven wheel 810 can be gears, and correspondingly, the transmission bar 820 can be a rack. The driven wheel 820 is connected to the rotating shaft, and the driven wheel 820 is connected to the smoke outlet drum wheel 800 through the rotating shaft. When the driving motor 250 drives the conveyor belt 210 to rotate, the conveyor belt 210 drives the second transmission roller 230 to rotate, and the second transmission roller 230 drives the smoke outlet drum wheel 800 to rotate through the above-mentioned transmission assembly.

[0049] The control terminal is electrically connected to the cigarette rolling machine group so that when the online detection device for laser perforation of cigarette filters described in an embodiment of the present application continuously detects abnormal cigarettes 400 to be tested, or when the number of abnormal cigarettes 400 to be tested reaches a preset threshold within a certain time interval, the control terminal sends a stop signal to the cigarette rolling machine group.

[0050] In some embodiments, a rejected cigarette collection drawer 120 is also provided at the bottom end of the box body 100, a gravity sensor 121 is provided at the bottom end of the rejected cigarette collection drawer 120, a supporting plate 122 is provided at the top end of the gravity sensor 121, and the gravity sensor 121 is electrically connected to the control terminal.

[0051] Among them, the rejected cigarette collection drawer 120 and the rejection device 300 are respectively arranged on both sides of the conveyor belt 210. By setting the gravity sensor 121 in the rejected cigarette collection drawer 120, the weight of the abnormal cigarettes 400 to be tested in the rejected cigarette collection drawer 120 can be collected to infer the number of abnormal cigarettes 400 to be tested. When the number reaches a threshold preset in the control terminal, the control terminal reminds the operator to take away the abnormal cigarettes 400 to be tested in the rejected cigarette collection drawer 120.

[0052] In some embodiments, an alarm device 900 is also included, and the alarm device 900 is electrically connected to the control terminal.

[0053] The alarm device 900 may send out an alarm signal each time an abnormal cigarette 400 is found, or may send out an alarm signal only when abnormal cigarettes 400 are found continuously. The alarm device 900 may be an audible and visual alarm or a buzzer when the number of abnormal cigarettes 400 found within a certain time interval reaches a preset threshold. The alarm device 900 is disposed on the outside of the box 100 to facilitate observation by staff.

[0054] In summary, an online detection device for laser perforation of cigarette filters provided in an embodiment of the present application, by arranging a number of cigarette placing slots at equal intervals on a conveyor belt, the conveyor belt can stably convey the cigarettes to be tested forward, and by arranging a light source on one side of the conveyor belt, the light source is vertically emitted into the filter of the cigarette to be tested, and the light is scattered outward from the laser perforation of the filter of the cigarette to be tested, and the recognition of the laser perforation is improved by internal lighting, and the upper end image and the lower end image of the filter of the cigarette to be tested are respectively captured by a first acquisition camera and a second acquisition camera respectively arranged above and below the conveyor belt, and are processed and analyzed by an image processor, and the analysis results are transmitted to a control terminal, and the control terminal controls a rejection device to reject abnormal cigarettes, thereby solving the technical problem that the detection efficiency and detection accuracy of the laser perforation of the cigarette filter are low due to the use of manual sampling in the prior art.

[0055] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for online detection of laser perforation of cigarette filters, comprising a box (100), wherein the box (100) is arranged downstream of a cigarette rolling and joining unit, and is characterized in that: A cigarette conveying device (200) is provided in the box (100), a rejecting device (300) is provided on the side of the cigarette conveying device (200), and an image acquisition unit and a control terminal are also provided on the box (100); The top of the box body (100) is provided with a cigarette receiving groove (110) which is recessed toward the inside thereof, and the bottom of the cigarette receiving groove (110) is provided with a smoke outlet (111), and the cigarettes (400) to be tested conveyed by the cigarette rolling and connecting unit fall into the cigarette receiving groove (110) and are discharged one by one from the smoke outlet (111); The image acquisition unit comprises a first acquisition camera (500), a second acquisition camera (600), a light source (700) and an image processor; the first acquisition camera (500) and the second acquisition camera (600) are respectively arranged above and below the cigarette conveying device (200), and the detection ends are aligned with the cigarette to be tested (400); The control terminal is electrically connected to the cigarette conveying device (200), the image acquisition unit and the rejection device (300), and the control terminal is used to control the cigarette conveying device (200), the image acquisition unit and the rejection device (300).

2. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: The cigarette receiving slot (110) is a trapezoidal structure, the top surface area of ​​the cigarette receiving slot (110) is larger than the bottom surface area of ​​the cigarette receiving slot (110), and the cigarette outlet (111) is arranged on the bottom surface of the cigarette receiving slot (110).

3. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: The cigarette conveying device (200) comprises a driving component and a conveying belt (210), wherein the conveying belt (210) is arranged on the driving component, and the conveying belt (210) is driven by the driving component to convey cigarettes, and the conveying belt (210) is arranged below the smoke outlet (111), and a plurality of cigarette receiving grooves (211) are evenly arranged on the conveying belt (210).

4. The on-line detection device for laser perforation of cigarette filters according to claim 3, characterized in that: The driving assembly comprises a first transmission roller (220), a second transmission roller (230), a bracket (240) and a driving motor (250); The bracket (240) is mounted inside the box (100); the first transmission roller (220) and the second transmission roller (230) are rotatably connected to two ends of the bracket (240) respectively; the output end of the driving motor (250) is transmission-connected to the first transmission roller (220); and the transmission belt (210) is wound around the first transmission roller (220) and the second transmission roller (230); The driving motor (250) is electrically connected to the control terminal.

5. The on-line detection device for laser perforation of cigarette filters according to claim 4, characterized in that: A smoke outlet drum wheel (800) is also provided at one end of the conveyor belt (210) away from the smoke outlet (111), and the smoke outlet drum wheel (800) is transmission-connected to the second transmission roller (230) via a transmission assembly; The transmission assembly comprises a driving wheel (231), a driven wheel (810) and a transmission bar (820); the driving wheel (231) is connected to the second transmission roller (230); the driven wheel (810) is connected to the smoke outlet drum wheel (800); and the transmission bar (820) is wound around the driving wheel (231) and the driven wheel (810).

6. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: The bottom end of the box body (100) is also provided with a rejected cigarette collection drawer (120), the bottom of the rejected cigarette collection drawer (120) is provided with a gravity sensor (121), the top of the gravity sensor (121) is provided with a supporting plate (122), and the gravity sensor (121) is electrically connected to the control terminal.

7. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: It also includes an alarm device (900), wherein the alarm device (900) is electrically connected to the control terminal.

8. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: The rejection device (300) is a MAC high-frequency bullet valve.

9. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: The first acquisition camera (500) and the second acquisition camera (600) are both industrial line array cameras.

10. The on-line detection device for laser perforation of cigarette filters according to claim 1, characterized in that: The light source (700) is a white light point light source.

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