Cigarette appearance detection device

Abstract

The utility model discloses a cigarette appearance detection device and relates to the technical field of cigarette production. Comprising a stirring wheel, an image obtaining assembly and a drum wheel, the drum wheel is used for conveying cigarettes, the stirring wheel is arranged on one side of the drum wheel and used for making contact with the cigarettes on the drum wheel, the stirring wheel is further matched with the drum wheel to stir and rotate the cigarettes in the process of making contact with the cigarettes, and the image obtaining assembly is used for obtaining appearance images of the cigarettes for detection. According to the cigarette appearance detection device disclosed by the utility model, the cigarette is shifted and rotated through the shifting wheel in the process of shooting the cigarette appearance image, so that the appearance of the cigarette can be completely acquired by one image acquisition assembly, the number of image acquisition equipment is reduced, the purchase cost is reduced, and the space volume of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production, in particular to a cigarette appearance detection device. Background Art

[0002] In the process of cigarette production, the production speed is getting faster and faster, and the requirements of enterprises on product quality are becoming more and more stringent. The appearance quality of cigarettes affects consumers' choices to a certain extent. However, in the actual production of cigarettes, due to machine failure, cigarettes are prone to stains, damaged cigarette paper, tobacco stems, poor splicing, no printing, printing position offset, ink pollution and other defective products. With the development of computer software and hardware technology, as well as the improvement of machine vision software and hardware, it has become a trend to use machine vision methods to detect the appearance quality of cigarettes.

[0003] Existing cigarette appearance inspection devices can effectively detect defective cigarettes and remove them. However, investigations have found that the cigarettes are adsorbed in the cigarette groove of the drum wheel, with half of them leaking out and the other half in the cigarette groove. In order to inspect the entire outer surface of the cigarette, two sets of appearance inspection devices must be set at the two drum positions to respectively photograph the two half surfaces of the cigarette. This method has blind spots, which will cause problems such as cigarette leakage and accidental kicking, and the two sets of devices take up a lot of space. Utility Model Content

[0004] The utility model provides a cigarette appearance detection device, which rotates the cigarette by turning a wheel during the process of shooting the appearance image of the cigarette, so that the appearance of the cigarette can be completely captured by an image acquisition component, thereby reducing the number of image acquisition devices and the procurement cost, and reducing the space volume of the device, so as to solve the above-mentioned technical problems.

[0005] The utility model solves the above-mentioned problem by providing a device for detecting the appearance of cigarettes, including a toggle wheel, an image acquisition component and a drum wheel. The drum wheel is used to transport cigarettes. The toggle wheel is arranged on one side of the drum wheel and is used to contact the cigarettes on the drum wheel. The toggle wheel cooperates with the drum wheel to rotate the cigarettes during the process of contacting the cigarettes. The image acquisition component is used to obtain an image of the appearance of the cigarette for detection.

[0006] Furthermore, it also includes a driving motor, the shifting wheel is arranged on the output rotating shaft of the driving motor, the driving motor is parallel to the central axis of the drum wheel and is fixedly installed just above the drum wheel.

[0007] Furthermore, the outer circumferential surface of the shifting wheel is provided with shifting tooth marks for contacting and rotating the cigarette.

[0008] Furthermore, the rotation direction of the shifting wheel is the same as that of the drum wheel, so that the movement direction of the shifting wheel contacting the surface of the cigarette is opposite to the movement direction of the contacted cigarette, thereby making the shifting wheel and the drum wheel cooperate with each other to rotate the cigarette.

[0009] Furthermore, the image acquisition component includes a camera, a light source, and a shell. The camera is installed in the shell. The shell is also provided with an observation window, which is set toward the gap between the drum wheel and the toggle wheel. Under the action of the light source, the camera obtains the appearance image of the cigarette through the observation window.

[0010] Furthermore, a first mirror and multiple second mirrors are provided in the shell, the multiple second mirrors are all used to image the cigarette, and the first mirror is used to image the multiple second mirrors at the same time, and the camera lens is facing the first mirror; so that when the multiple second mirrors all show cigarette images, the camera also obtains multiple appearance images of a cigarette through the first mirror.

[0011] Furthermore, the housing is a sealed housing.

[0012] Furthermore, it also includes a position adjustment component, which includes a mounting base, a first adjustment plate, a second adjustment plate, and a base. The mounting base is fixedly mounted on the cigarette making machine, the first adjustment plate is movably arranged on the mounting base, the second adjustment plate is movably arranged on the first adjustment plate, the base is fixedly mounted on the second adjustment plate, and the image acquisition component is fixedly mounted on the base; the first adjustment plate is movable relative to the mounting base to adjust the position and orientation of the image acquisition component, and the second adjustment plate is movable relative to the first adjustment plate to adjust the position and orientation of the image acquisition component.

[0013] Furthermore, at least two horizontally extending strip mounting holes are provided on the first adjustment plate, and at least two of the strip mounting holes are each provided with at least one bolt, and at least two bolts are both threadedly mounted on the mounting base plate and cooperate with each other to limit the movement of the first adjustment plate to horizontal movement; and when the bolts are tightened, they also cooperate with the mounting base plate to clamp and fix the first adjustment plate.

[0014] Furthermore, the second adjusting plate is rotatably mounted on the first adjusting plate through a hinge pin; an arc-shaped mounting hole is provided on the second adjusting plate, the arc-shaped mounting hole has the hinge pin as the center, and a bolt is also provided at the arc-shaped mounting hole, the bolt is used to threadably connect the first adjusting plate and cooperate with the arc-shaped mounting hole to limit the rotation angle of the second adjusting plate; and, when the second bolt is tightened, it also cooperates with the first adjusting plate to clamp and fix the second adjusting plate.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a cigarette appearance detection device, by arranging a toggle wheel for rotating cigarettes at the outer periphery of a drum wheel, so that whenever a cigarette passes between the toggle wheel and the drum wheel, the toggle wheel can rotate the cigarette, causing the cigarette to rotate at least half a circle relative to the drum wheel, thereby allowing the image acquisition component to correspondingly capture a complete cigarette appearance image for subsequent cigarette appearance defect detection.

[0017] In this regard, the device only needs to set up an image acquisition component and a toggle wheel on the outside of a drum wheel to obtain a complete appearance image of a cigarette. The procurement cost of the entire device is relatively low and it does not take up too much space in the equipment.

[0018] In addition, the camera lens is provided with a first mirror and multiple second mirrors. The multiple second mirrors can all image the cigarette, and the first mirror can simultaneously image the multiple second mirrors, so that the camera can simultaneously obtain multiple appearance images of a cigarette through the first mirror, so as to further improve the accuracy of the cigarette appearance detection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is an overall structural diagram of the cigarette appearance detection device of this embodiment;

[0021] Figure 2 This is a front view of the cigarette appearance detection device of this embodiment;

[0022] Figure 3 This is a structural diagram of the working principle of the paddle wheel and the drum wheel in this embodiment for paddle cigarettes;

[0023] Figure 4 is a structural diagram of the image acquisition component of this embodiment;

[0024] Figure 5 It is a structural exploded diagram of the position adjustment component of this embodiment;

[0025] 11 - Dialing wheel, 12 - Driving motor, 13 - Dialing tooth marks, 2 - Image acquisition component, 21 - Camera, 22 - Housing, 23 - Observation window, 24 - First mirror, 25 - Second mirror, 3 - Drum wheel, 4 - Position adjustment component, 41 - Mounting base plate, 42 - First adjustment plate, 43 - Second adjustment plate, 44 - Base, 45 - Strip-shaped mounting hole, 46 - Arc-shaped mounting hole;

[0026] A - Cigarette. Specific implementation manner

[0027] In this specification, the orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned are defined with respect to the structures shown in the respective drawings. The terms "inside" and "outside" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0028] Please refer to Figures 1 to 3 , a cigarette appearance detection device for a specific embodiment of the present utility model. Without changing the internal structure of the cigarette making machine, this device is installed in the empty area on one side of the drum wheel 3 inside the cigarette making machine; this device includes a dialing wheel 11, an image acquisition component 2, and a drum wheel 3. The drum wheel 3 is actually the cigarette conveying drum wheel 3 of the cigarette making machine. The dialing wheel 11 is fixedly arranged above the drum wheel 3 and parallel to the central axis of the drum wheel 3. The image acquisition component 2 is arranged on the left side of the dialing wheel 11; the axis of the dialing wheel 11 is installed at the output rotating shaft end of the driving motor 12, and the bottom of the driving motor 12 is fixed on the main body structure of the cigarette making machine. The surface of the dialing wheel 11 is also evenly provided with dialing tooth marks 13 in the circumferential direction. The gap between the dialing wheel 11 and the drum wheel 3 is smaller than the diameter of the cigarette. When a cigarette passes through the gap between the dialing wheel 11 and the drum wheel 3, the lower side of the dialing wheel 11 and the upper end of the drum wheel 3 simultaneously come into contact with the cigarette. At this time, the dialing wheel 11 and the drum wheel 3 cooperate with each other to rotate the cigarette, so that the lower surface of the cigarette is also exposed under the lens of the image acquisition component 2 during the rotation process, enabling the image acquisition component 2 to capture a complete outer surface image of the cigarette at one time.

[0029] In this embodiment, the dialing tooth marks 13 are strip-shaped protrusions evenly arranged on the outer circumferential surface of the dialing wheel 11. The dialing wheel 11 is arranged directly above the drum wheel 3. The dialing wheel 11 rotates counterclockwise under the drive of the driving motor 12, and the rotation direction of the drum wheel 3 is also counterclockwise. At this time, the moving direction of the cigarette on the lower surface of the dialing wheel 11 is opposite to that on the upper end of the drum wheel 3. At this time, the dialing wheel 11 can completely rotate the cigarette easily through the dialing tooth marks 13.

[0030] In other embodiments, the tooth marks 13 may be strip grooves or dot-shaped protrusions or dot-shaped grooves; moreover, the rotation directions of the paddle wheel 11 and the drum wheel 3 may be set to be opposite and the rotation speed of the paddle wheel 11 may be different from the rotation speed of the drum wheel 3, so that the movement direction of the lower end surface of the paddle wheel 11 that contacts the cigarette is the same as the movement direction of the contacted cigarette but at different speeds, so that the paddle wheel 11 and the drum wheel 3 cooperate with each other to turn the cigarette. In addition, the paddle wheel 11 may be stationary while the drum wheel 3 is still rotating, so that the paddle wheel 11 and the drum wheel 3 cooperate with each other to turn the cigarette; or the paddle wheel 11 rotates while the drum wheel 3 is stationary when the paddle wheel 3 contacts the cigarette, so that the paddle wheel 11 and the drum wheel 3 cooperate with each other to turn the cigarette.

[0031] For further information, see Figure 4 In this embodiment, the image acquisition component 2 includes a camera 21, a light source, and a shell 22. The shell 22 is a rectangular parallelepiped. A transparent observation window 23 is provided at the front lower part of the shell 22. The camera 21 is horizontally installed at the left rear end of the shell 22. The light source is integrated with the observation window 23. A first mirror 24 is provided at the right front end of the shell 22. The lower end of the first mirror 24 is fixed to the right front lower end of the shell 22, and the upper end is fixed to the middle of the upper end of the shell 22. The imaging mirror surface of the first mirror 24 is tilted toward the lens of the camera 21; four second mirrors 25 are also provided at the lower right end of the shell 22. The four second mirrors 25 are all located on the inner side of the observation window 23. Two second mirrors 25 form a group and are parallel to each other. In the two groups of second mirrors 25, one second mirror 25 is tilted toward the cigarette on the drum wheel 3, and the other second mirror 25 is tilted toward the first mirror 24.

[0032] Correspondingly, in this embodiment, the first mirror 24 can simultaneously present two groups of second mirrors 25 and the cigarette images in the two groups of second mirrors 25, and the camera 21 can correspondingly obtain two appearance images of the same cigarette at one time through the first mirror 24 to accurately detect the appearance of the cigarette.

[0033] In this embodiment, the upper shell wall of the shell 22 is a cover body, and a sealing gasket is provided on the edge of the cover body. The cover body is also provided with a plurality of fixing bolts or screws. The cover body is sealed and arranged above the shell 22 by means of screws or bolts, so that the shell 22 is a sealed shell to prevent cigarette ash and droplets from entering the shell 22 and affecting the normal operation of the camera 21; at the same time, technicians can also regularly disassemble and open the cover body to regularly maintain the camera 21 and multiple mirrors.

[0034] For further information, see Figure 5, in this embodiment, the image acquisition component 2 is installed on the position adjustment component 4; the position adjustment component 4 includes a mounting base plate 41, a first adjustment plate 42, a second adjustment plate 43, and a base 44; the mounting base plate 41 is a long strip plate, and through holes are provided at both ends of the mounting base plate 41, and bolts are provided in the through holes. The mounting floor is clamped and fixed to the main structure of the cigarette machine through two groups of bolts; the first adjustment plate 42 is a T-shaped plate, and two strip-shaped mounting holes 45 are arranged side by side at the upper end of the first adjustment plate 42, and bolts are inserted into both of the two strip-shaped mounting holes 45. The first adjustment plate 42 is installed on the mounting base plate 41 through two bolts. When the technician tightens the two bolts, the first adjustment plate 42 is correspondingly clamped and fixed on the mounting base plate 41. When the technician loosens the two bolts, the first adjustment plate 42 can also horizontally move relative to the mounting base plate 41 through the two strip-shaped mounting holes 45; the second adjustment plate 43 is rotatably installed in the middle and lower region of the first adjustment plate 42 through a hinge pin, and an arc-shaped mounting hole 46 centered on the hinge pin is also provided at the upper end of the second adjustment plate 43. Two bolts are also provided in the arc-shaped mounting hole 46. Both bolts pass through the arc-shaped mounting hole 46 to be bolted to the first adjustment plate 42. When the technician tightens the two bolts, the second adjustment plate 43 is correspondingly also clamped and fixed on the first adjustment plate 42. When the technician loosens the two bolts, the second adjustment plate 43 can freely rotate relative to the hinge pin. When the rotation range of the second adjustment plate 43 is limited by the two bolts and the arc-shaped mounting hole 46; the base 44 is fixedly installed at the middle and lower part of the second adjustment plate 43 through four bolts, and the housing 22 of the image acquisition component 2 is fixedly installed on the base 44.

[0035] In this regard, the technician can separately loosen the bolts on the first adjustment plate 42 to make the first adjustment plate 42 move horizontally, thereby adjusting the horizontal position of the image acquisition component 2. The technician can also separately loosen the two bolts on the second adjustment plate 43 to adjust the orientation of the image acquisition component 2 by rotating the second adjustment plate 43. The technician can also simultaneously loosen the bolts on the two adjustment plates to simultaneously adjust the position and orientation of the image acquisition component 2, so that the camera 21 can obtain a clear image of the appearance of the cigarette rod to ensure the quality of the cigarette rod appearance detection.

[0036] It should be noted that in other embodiments, the number of the strip-shaped mounting holes 45 can also be one or more. However, when only one strip-shaped mounting hole 45 is provided, at least two bolts need to be provided in one strip-shaped mounting hole 45; the number of the arc-shaped mounting holes 46 can also be two or even more, and only one bolt can also be provided in one arc-shaped mounting hole 46.

[0037] For the parts not mentioned above, the prior art is applicable.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cigarette appearance detection device, characterized in that: The invention comprises a toggle wheel (11), an image acquisition component (2) and a drum wheel (3), wherein the drum wheel (3) is used to transport cigarettes, the toggle wheel (11) is arranged on one side of the drum wheel (3) and is used to contact the cigarettes on the drum wheel (3), and the toggle wheel (11) cooperates with the drum wheel (3) to rotate the cigarettes during the process of contacting the cigarettes, and the image acquisition component (2) is used to obtain an image of the appearance of the cigarettes for detection.

2. A cigarette appearance detection device according to claim 1, characterized in that: It also includes a driving motor (12), the shifting wheel (11) is arranged on the output rotating shaft of the driving motor (12), and the driving motor (12) is parallel to the central axis of the drum wheel (3) and is fixedly installed just above the drum wheel (3).

3. A cigarette appearance detection device according to claim 1, characterized in that: The outer circumferential surface of the moving wheel (11) is provided with moving tooth marks (13) for contacting and moving cigarettes.

4. A cigarette appearance detection device according to claim 2, characterized in that: The rotation direction of the moving wheel (11) is the same as that of the drum wheel (3), so that the moving direction of the moving wheel (11) when it contacts the surface of the cigarette is opposite to the moving direction of the contacted cigarette, thereby enabling the moving wheel (11) and the drum wheel (3) to cooperate with each other to rotate the cigarette.

5. A cigarette appearance detection device according to claim 1, characterized in that: The image acquisition component (2) comprises a camera (21), a light source, and a housing (22). The camera (21) is installed in the housing (22). The housing (22) is also provided with an observation window (23). The observation window (23) is arranged toward the gap between the drum wheel (3) and the toggle wheel (11). Under the action of the light source, the camera (21) obtains an image of the appearance of the cigarette through the observation window (23).

6. A cigarette appearance detection device according to claim 5, characterized in that: The shell (22) is further provided with a first mirror surface (24) and a plurality of second mirror surfaces (25); the plurality of second mirror surfaces (25) are all used to form an image of a cigarette, and the first mirror surface (24) is used to form an image of the plurality of second mirror surfaces (25) at the same time, and the lens of the camera (21) is facing the first mirror surface (24); so that when the plurality of second mirror surfaces (25) all present an image of a cigarette, the camera (21) also obtains a plurality of appearance images simultaneously containing a cigarette through the first mirror surface (24).

7. A cigarette appearance detection device according to claim 5, characterized in that: The housing (22) is a sealed housing.

8. A cigarette appearance detection device according to claim 1, characterized in that: The cigarette making machine also comprises a position adjustment component (4), the position adjustment component (4) comprising a mounting base plate (41), a first adjustment plate (42), a second adjustment plate (43), and a base (44); the mounting base plate (41) is fixedly mounted on the cigarette making machine; the first adjustment plate (42) is movably arranged on the mounting base plate (41); the second adjustment plate (43) is movably arranged on the first adjustment plate (42); the base (44) is fixedly mounted on the second adjustment plate (43); and the image acquisition component (2) is fixedly mounted on the base (44); the first adjustment plate (42) is movable relative to the mounting base plate (41) to adjust the position and orientation of the image acquisition component (2); and the second adjustment plate (43) is movable relative to the first adjustment plate (42) to adjust the position and orientation of the image acquisition component (2).

9. A cigarette appearance detection device according to claim 8, characterized in that: At least two horizontally extending strip-shaped mounting holes (45) are formed on the first adjustment plate (42), and at least two of the strip-shaped mounting holes (45) are each provided with at least one bolt, and the at least two bolts are both threadedly mounted on the mounting base plate (41) and cooperate with each other to restrict the movement of the first adjustment plate (42) to horizontal movement; and when the bolts are tightened, they also cooperate with the mounting base plate (41) to clamp and fix the first adjustment plate (42).

10. A cigarette appearance detection device according to claim 8, characterized in that: The second adjustment plate (43) is rotatably mounted on the first adjustment plate (42) via a hinge pin; an arc-shaped mounting hole (46) is provided on the second adjustment plate (43), the arc-shaped mounting hole (46) has the hinge pin as a circle center, and a bolt is also provided at the arc-shaped mounting hole (46), the bolt is used to be threadedly connected to the first adjustment plate (42) and cooperate with the arc-shaped mounting hole (46) to limit the rotation angle of the second adjustment plate (43); and when the second bolt is tightened, it cooperates with the first adjustment plate (42) to clamp and fix the second adjustment plate (43).

Images