Visual online detection system for filter stick of forming machine

Abstract

The utility model discloses a visual online detection system for a filter stick of a forming machine. The visual online detection system comprises a visual controller, an encoder assembly, an image acquisition device, a filter stick removing device, a touch screen and an industrial image computer, the visual controller, the encoder assembly, the image acquisition device, the filter stick removing device and the touch screen are arranged on the filter stick forming machine, and the encoder assembly, the image acquisition device and the filter stick removing device are sequentially arranged in the filter stick conveying direction. The visual controller is electrically connected with the encoder assembly, the image acquisition device, the filter stick removing device, the touch screen and the industrial image computer. The system can display information such as production data, defect data, defect percentage, defect category and number and the like in real time, is reasonable in operation interface design, convenient to operate, high in system detection precision, convenient to operate and maintain and high in production efficiency, reduces the production cost, and can well replace a traditional manual visual detection mode.

Description

Technical Field

[0001] This utility model relates to the field of filter rod manufacturing technology, and in particular to an online visual inspection system for filter rods in a molding machine. Background Technology

[0002] Cigarette filters are one of the key raw materials for cigarette manufacturing. According to data from the National Bureau of Statistics, China's cigarette production reached 1.43 trillion cigarettes from January to July 2019. This massive cigarette production has placed higher demands on the quantity and quality of filter rods. Currently, 72% of factories still use manual visual inspection to check cigarette filters, resulting in high inspection costs, slow speed, and low accuracy, which is detrimental to the industry's development. Therefore, there is an urgent need to develop an online visual inspection system for cigarette filter rods in cigarette manufacturing machines to replace manual visual inspection. Utility Model Content

[0003] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a visual online inspection system for filter rods in molding machines to solve the existing problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A visual online inspection system for filter rods in a filter rod forming machine includes a vision controller, an encoder assembly, an image acquisition device, a filter rod rejection device, a touch screen, and an industrial image computer. The vision controller, encoder assembly, image acquisition device, filter rod rejection device, and touch screen are mounted on the filter rod forming machine, and the encoder assembly, image acquisition device, and filter rod rejection device are arranged sequentially along the filter rod conveying direction. The vision controller is electrically connected to the encoder assembly, image acquisition device, filter rod rejection device, touch screen, and industrial image computer.

[0006] Preferably, the encoder assembly is used to send a phase signal for a single filter rod; the image acquisition device is used to acquire a 360-degree image of each filter rod and send the filter rod image data; the filter rod rejection device is used to implement the function of rejecting a single defective filter rod; the touch screen is used for command input and real-time data display; the industrial image computer is used to receive the filter rod image data sent from the image acquisition device via Ethernet and to perform image detection on the filter rod image data to identify defective filter rods.

[0007] Preferably, the image acquisition device includes a housing, a guide rail flange, a light source assembly, and a line scan camera assembly disposed within the housing, as well as a visual smoke guide tube and a visual smoke guide horn respectively disposed on the left and right outer side walls of the housing; the visual smoke guide tube and the visual smoke guide horn are respectively disposed corresponding to the guide rail flange, and a glass guide tube is disposed horizontally inside the guide rail flange, with both ends of the glass guide tube communicating with the visual smoke guide tube and the visual smoke guide horn respectively; the light source assembly is disposed on the guide rail flange, and the line scan camera assembly is disposed vertically corresponding to the guide rail flange.

[0008] Preferably, the upper end face of the guide rail flange is provided with a first through hole at one end of the glass conduit, the first through hole being connected to the glass conduit and a first glass lens is disposed thereon; the lower end face of the guide rail flange is provided with a first mounting hole at one end of the glass conduit and a second through hole at the other end, the second through hole being connected to the glass conduit and a second glass lens is disposed thereon; the guide rail flange is provided with a mounting groove on one axial side of the glass conduit, the mounting groove being correspondingly provided with the second glass lens, and a second mounting hole is provided on the inner side wall of the mounting groove facing the glass conduit, the second mounting hole being connected to the glass conduit;

[0009] The light source assembly includes a first light source assembly and a second light source assembly, wherein the first light source assembly is disposed on the guide rail flange at the first mounting hole, and the second light source assembly is disposed on the guide rail flange at the second mounting hole;

[0010] The line scan camera assembly includes a first line scan camera and a second line scan camera, wherein the first line scan camera is disposed above the first glass lens and the second line scan camera is disposed below the second glass lens.

[0011] Preferably, the first light source assembly includes a first light source cover and a first light source base. The first light source cover is a hollow column. The first light source base is connected to one end of the first light source cover. The other end of the first light source cover is installed on the guide rail flange at the first mounting hole.

[0012] The second light source assembly includes a second light source cover and a second light source base. The second light source cover is a hollow column, and the second light source base is connected to one end of the second light source cover. The other end of the second light source cover is installed on the guide rail flange at the second mounting hole.

[0013] Preferably, the filter rod rejection device includes a rejection solenoid valve.

[0014] The beneficial effects of this utility model are as follows: By setting a guide rail flange with a glass conduit arranged horizontally inside the guide rail flange, and two glass lenses and a light source assembly on the guide rail flange, the filter rod achieves 360º imaging through the reflection of the glass blocks while the light source provides supplementary illumination, thus achieving better photographic results. By setting a visual smoke guide horn and a visual smoke guide tube, the filter rod is guided into the glass conduit when it enters the visual smoke guide horn, and the object is led out using the visual smoke guide tube after the photograph is taken. The system can display production data, defect data, defect percentage, defect type and quantity, etc. in real time. The user interface is reasonably designed and easy to operate. The system has high detection accuracy, is easy to operate and maintain, has high production efficiency, reduces production costs, and can effectively replace traditional manual visual inspection methods.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a visual online inspection system for filter rods in a molding machine, as shown in this utility model.

[0017] Figure 2 This is a schematic diagram of the image acquisition device shown in this utility model;

[0018] Figure 3 This is a structural schematic diagram of the image acquisition device shown in this utility model from another perspective.

[0019] Figure 4 This is a top-view structural schematic diagram of the guide rail flange shown in this utility model;

[0020] Figure 5 This is a structural schematic diagram of the guide rail flange shown in this utility model from an elevation view.

[0021] Figure 6 This is a perspective view of the guide rail flange shown in this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Vision controller; 2. Encoder assembly; 3. Image acquisition device; 4. Filter rod rejection device; 5. Touch screen; 6. Industrial image computer; 7. Housing; 8. Guide rail flange; 9. Vision smoke guide duct; 10. Vision smoke guide horn; 11. Glass guide tube; 12. First glass lens; 13. Second glass lens; 14. First mounting hole; 15. Mounting groove; 16. Second mounting hole; 17. First light source assembly; 171. First light source cover; 172. First light source base; 18. Second light source assembly; 181. Second light source cover; 182. Second light source base; 19. First line scan camera; 20. Second line scan camera. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Please see Figure 1-6This application discloses an online visual inspection system for filter rods in a filter rod forming machine, comprising a vision controller 1, an encoder assembly 2, an image acquisition device 3, a filter rod rejection device 4, a touch screen 5, and an industrial image computer 6. The vision controller 1, encoder assembly 2, image acquisition device 3, filter rod rejection device 4, and touch screen 5 are mounted on a filter rod forming machine, and the encoder assembly 2, image acquisition device 3, and filter rod rejection device 4 are arranged sequentially along the filter rod conveying direction. The vision controller 1 is electrically connected to the encoder assembly 2, image acquisition device 3, filter rod rejection device 4, touch screen 5, and industrial image computer 6 respectively.

[0028] Furthermore, the encoder component 2 is used to send a phase signal for a single filter rod; the image acquisition device 3 is used to acquire a 360-degree image of each filter rod and send the filter rod image data; the filter rod rejection device 4 is used to implement the function of rejecting a single defective filter rod; the touch screen 5 is used for command input and real-time data display; and the industrial image computer 6 is used to receive the filter rod image data sent from the image acquisition device 3 via Ethernet and to perform image detection on the filter rod image data to identify defective filter rods.

[0029] Furthermore, the image acquisition device 3 includes a housing 7, a guide rail flange 8, a light source assembly, and a line scan camera assembly disposed within the housing 7, as well as a visual smoke guide tube 9 and a visual smoke guide horn 10 respectively disposed on the left and right outer side walls of the housing 7; the visual smoke guide tube 9 and the visual smoke guide horn 10 are respectively disposed corresponding to the guide rail flange 8, and a glass guide tube 11 is disposed horizontally inside the guide rail flange 8, with both ends of the glass guide tube 11 connected to the visual smoke guide tube 9 and the visual smoke guide horn 10 respectively; the light source assembly is disposed on the guide rail flange 8, and the line scan camera assembly is disposed vertically corresponding to the guide rail flange 8.

[0030] Furthermore, the upper end face of the guide flange 8 is provided with a first through hole at one end of the glass conduit 11, the first through hole is connected to the glass conduit 11, and a first glass lens 12 is provided in the first through hole; the lower end face of the guide flange 8 is provided with a first mounting hole 14 at one end of the glass conduit 11, and a second through hole at the other end, the second through hole is connected to the glass conduit 11, and a second glass lens 13 is provided in the second through hole; the guide flange 8 is provided with a mounting groove 15 on one axial side of the glass conduit, the mounting groove 15 is correspondingly provided with the second glass lens 13, and a second mounting hole 16 is provided on the inner side wall of the mounting groove 15 facing the glass conduit 11, the second mounting hole 16 is connected to the glass conduit 11;

[0031] The light source assembly includes a first light source assembly 17 and a second light source assembly 18. The first light source assembly 17 is disposed on the guide rail flange 8 at the first mounting hole 14, and the second light source assembly 18 is disposed on the guide rail flange 8 at the second mounting hole 16.

[0032] The line scan camera assembly includes a first line scan camera 19 and a second line scan camera 20. The first line scan camera 19 is disposed above the first glass lens 12, and the second line scan camera 20 is disposed below the second glass lens 13.

[0033] Furthermore, the first light source assembly 17 includes a first light source cover 171 and a first light source base 172. The first light source cover 171 is a hollow column. The first light source base 172 is connected to one end of the first light source cover 171. The other end of the first light source cover 171 is installed on the guide rail flange 8 at the first mounting hole 14.

[0034] The second light source assembly 18 includes a second light source cover 181 and a second light source base 182. The second light source cover 181 is a hollow column, and the second light source base 182 is connected to one end of the second light source cover 181. The other end of the second light source cover 181 is installed on the guide rail flange 8 at the second mounting hole 16.

[0035] Furthermore, the filter rod rejection device 4 includes a rejection solenoid valve.

[0036] Working principle:

[0037] The vision controller collects the encoder's pulse signal and the cutter signal as the phase signal of a single filter rod. After calculation, it triggers the light source component to turn on and the industrial color line scan camera to acquire the filter rod image. The filter rod image data is then transmitted via Ethernet to a high-performance industrial image computer for real-time processing. The built-in image detection software performs the detection function. When the detection software identifies a defective filter rod, it immediately sends a defect signal to the vision controller. The vision controller performs shift calculations and outputs a rejection signal to the original rejection solenoid valve to realize the function of rejecting a single defective filter rod.

[0038] This application discloses an online visual inspection system for filter rods in a molding machine. A guide flange is installed, with a glass conduit horizontally positioned inside. Two glass lenses and a light source assembly are mounted on the guide flange. Simultaneously, the light source provides supplementary illumination, and the reflection from the glass blocks allows for 360° imaging of the filter rod, resulting in superior photographic quality. A visual smoke guide horn and a visual smoke guide tube guide the filter rod as it enters the glass conduit. After imaging, the visual smoke guide tube guides the object out. The system can display real-time production data, defect data, defect percentage, defect type, and quantity. The user interface is well-designed and easy to operate. The system boasts high inspection accuracy, convenient operation and maintenance, high production efficiency, and reduced production costs, effectively replacing traditional manual visual inspection methods.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A visual online inspection system for filter rods in a molding machine, characterized in that, The system includes a vision controller (1), an encoder assembly (2), an image acquisition device (3), a filter rod rejection device (4), a touch screen (5), and an industrial image computer (6). The vision controller (1), encoder assembly (2), image acquisition device (3), filter rod rejection device (4), and touch screen (5) are mounted on a filter rod forming machine, and the encoder assembly (2), image acquisition device (3), and filter rod rejection device (4) are arranged sequentially along the filter rod conveying direction. The vision controller (1) is electrically connected to the encoder assembly (2), image acquisition device (3), filter rod rejection device (4), touch screen (5), and industrial image computer (6), respectively.

2. The online visual inspection system for filter rods in a molding machine as described in claim 1, characterized in that, The encoder assembly (2) is used to send a phase signal of a single filter rod; the image acquisition device (3) is used to acquire a 360-degree image of each filter rod and send the filter rod image data; the filter rod rejection device (4) is used to implement the function of rejecting a single defective filter rod; the touch screen (5) is used for instruction input and real-time data display; the industrial image computer (6) is used to receive the filter rod image data sent from the image acquisition device (3) via Ethernet and to perform image detection on the filter rod image data to identify defective filter rods.

3. The online visual inspection system for filter rods in a molding machine as described in claim 2, characterized in that, The image acquisition device (3) includes a housing (7), a guide rail flange (8), a light source assembly, and a line array camera assembly disposed within the housing (7), as well as a visual smoke guide tube (9) and a visual smoke guide horn (10) disposed on the left and right outer side walls of the housing (7), respectively; the visual smoke guide tube (9) and the visual smoke guide horn (10) are respectively disposed corresponding to the guide rail flange (8), and a glass conduit (11) is disposed horizontally inside the guide rail flange (8), and the two ends of the glass conduit (11) are respectively connected to the visual smoke guide tube (9) and the visual smoke guide horn (10); the light source assembly is disposed on the guide rail flange (8), and the line array camera assembly is disposed vertically corresponding to the guide rail flange (8).

4. The online visual inspection system for filter rods in a molding machine as described in claim 3, characterized in that, The upper end face of the guide flange (8) is provided with a first through hole at one end of the glass conduit (11), the first through hole is connected to the glass conduit (11), and a first glass lens (12) is provided in the first through hole; the lower end face of the guide flange (8) is provided with a first mounting hole (14) at one end of the glass conduit (11), and a second through hole at the other end, the second through hole is connected to the glass conduit (11), and a second glass lens (13) is provided in the second through hole; the guide flange (8) is provided with a mounting groove (15) on one axial side of the glass conduit, the mounting groove (15) is correspondingly provided with the second glass lens (13), and a second mounting hole (16) is provided on the inner wall of the mounting groove (15) facing the glass conduit (11), the second mounting hole (16) is connected to the glass conduit (11); The light source assembly includes a first light source assembly (17) and a second light source assembly (18). The first light source assembly (17) is disposed on the guide rail flange (8) at the first mounting hole (14), and the second light source assembly (18) is disposed on the guide rail flange (8) at the second mounting hole (16). The line array camera assembly includes a first line array camera (19) and a second line array camera (20). The first line array camera (19) is positioned above the first glass lens (12), and the second line array camera (20) is positioned below the second glass lens (13).

5. The online visual inspection system for filter rods in a molding machine as described in claim 4, characterized in that, The first light source assembly (17) includes a first light source cover (171) and a first light source base (172). The first light source cover (171) is a hollow column. The first light source base (172) is connected to one end of the first light source cover (171). The other end of the first light source cover (171) is installed on the guide rail flange (8) at the first mounting hole (14). The second light source assembly (18) includes a second light source cover (181) and a second light source base (182). The second light source cover (181) is a hollow column. The second light source base (182) is connected to one end of the second light source cover (181). The other end of the second light source cover (181) is installed on the guide rail flange (8) at the second mounting hole (16).

6. The online visual inspection system for filter rods in a molding machine as described in claim 2, characterized in that, The filter rod rejection device (4) includes a rejection solenoid valve.

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