A cigarette segment physical parameter detection device based on machine vision

Abstract

The present invention discloses a cigarette segment physical parameter detection device based on machine vision, which includes a frame box, a cigarette distributor mechanism for cigarette input, a blanking control mechanism for controlling the output of cigarettes from the cigarette distributor mechanism, a cigarette conveying mechanism for cigarette conveying, a circumferential handling mechanism for handling the cigarettes of the cigarette conveying mechanism to a measuring mechanism, a measuring mechanism for carrying the cigarettes to be detected, and a sampling mechanism for image sampling of the cigarettes to be detected. The device realizes automatic cigarette input through the cigarette distributor mechanism, makes the cigarettes vertically fall into the cigarette conveying mechanism, and through the automatic transportation of the cigarette conveying mechanism and the circumferential handling mechanism, conveys the cigarettes to the measuring mechanism, so that the sampling mechanism completes the photographing. The device integrates functions of cigarette input, conveying, output, detection, and recycling, with low manual participation and high automation, and can greatly improve the cigarette detection speed and detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette detection, and particularly to a physical parameter detection device for cigarette segmentation based on machine vision. Background Art

[0002] The existing cigarette detection technology based on machine vision includes cigarette appearance packaging detection, cigarette length and circumference detection. It takes pictures of the outside of the cigarette, and uses the taken images to detect defects in the cigarette packaging. The detection content includes defects and creases on the wrapping paper. It can also calculate the cigarette circumference and length using the image resolution to detect the physical values of the cigarette circumference and length.

[0003] The existing cigarette detection device manually places the cigarette into the measuring mechanism, then takes pictures of the outside of the cigarette through a camera, and sends the taken pictures into a computer for image processing to obtain the physical parameters of the cigarette. After the detection is completed, the cigarette needs to be manually removed and a new cigarette is replaced for a new round of detection process. The existing detection devices are mostly suitable for single and small-batch cigarette detection, and manual participation is required during the detection process, and an automated cigarette detection process cannot be achieved, resulting in low detection efficiency. Therefore, we provide a new physical parameter detection device for cigarette segmentation to solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a physical parameter detection device for cigarette segmentation based on machine vision, which solves the problems of low automation and slow detection efficiency of the existing cigarette detection device, thereby overcoming the deficiencies of the prior art.

[0005] To solve the above technical problem, the present invention provides a physical parameter detection device for cigarette segmentation based on machine vision, which includes a frame box, a cigarette distributor mechanism for cigarette input, a blanking control mechanism for controlling the output of cigarettes from the cigarette distributor mechanism, a cigarette conveying mechanism for cigarette conveying, a circumference handling mechanism for handling the cigarettes from the cigarette conveying mechanism to the measuring mechanism, a measuring mechanism for carrying the cigarettes to be detected, and a sampling mechanism for image sampling of the cigarettes to be detected;

[0006] The rack box is in the structure of a rectangular hollow box body. An installation bottom plate is arranged inside the rack box. The cigarette separating mechanism is arranged above the installation bottom plate. The cigarette separating mechanism changes the state of the cigarettes from a horizontal state to a vertical state and the cigarettes enter the blanking control mechanism. The blanking control mechanism is located on the lower surface of the installation bottom plate. The blanking control mechanism controls the intermittent falling of the cigarettes into the cigarette conveying mechanism. The cigarette conveying mechanism is located below the blanking control mechanism. The cigarette conveying mechanism conveys the cigarettes downward and the cigarettes are conveyed to the measuring mechanism by the circumferential conveying mechanism. The measuring mechanism is arranged on the bottom surface inside the rack box. The sampling mechanism is located above the measuring mechanism. The sampling mechanism samples the images of the cigarettes in the measuring mechanism.

[0007] As an improvement of the present invention, the cigarette separating mechanism includes a cigarette collecting pipe, a cigarette separating partition plate, a rear cover plate, a feeding plate, a feeding driving disc and a feeding motor. A material bin is arranged at the upper part of the cigarette collecting pipe. The material bin is fixed on the installation bottom plate through two groups of oppositely arranged supporting vertical plates. Guide grooves are respectively arranged on the opposite side surfaces of the two groups of supporting vertical plates in the cigarette collecting pipe. The two side edges of the feeding plate are respectively arranged in the guide grooves, and the feeding plate freely slides along the length direction of the guide grooves. The feeding plate is closely attached to the rear opening of the material bin. Long strip-shaped feeding holes are arranged on the surface of the feeding plate. The cigarette separating partition plate is arranged behind the feeding plate. The rear cover plate is closely connected to the rear side of the cigarette separating partition plate. A smoke guiding sliding groove for changing the cigarettes from a horizontal state to a vertical state is arranged at the middle position between the cigarette separating partition plate and the rear cover plate. A driving disc installation groove is arranged at the front side of the cigarette separating partition plate. The feeding driving disc is rotatably arranged in the driving disc installation groove. The feeding motor is fixed on the rear side surface of the cigarette separating partition plate. The driving shaft of the feeding motor penetrates through the cigarette separating partition plate, and the end of the driving shaft is fixedly connected to the center of the feeding driving disc. A bearing protrusion for abutting against the lower edge of the feeding plate is arranged at the edge position of the feeding driving disc. A smoke guiding body including a vertical smoke guiding groove is arranged at the side position of the cigarette separating partition plate. The smoke guiding body is fixedly arranged on the installation bottom plate. A blanking hole is arranged on the installation bottom plate corresponding to the vertical smoke guiding groove position. When the cigarettes fall into the vertical smoke guiding groove from the smoke guiding sliding groove, the cigarettes change from a horizontal state to a vertical state, and the cigarettes enter the blanking control mechanism through the blanking hole.

[0008] As a further improvement of the present invention, the blanking control mechanism includes a blanking cylinder, a blanking block, a blanking fixing plate and a guide pipe. The blanking fixing plate is located below the installation base plate, and the blanking fixing plate is fixedly connected relative to the installation base plate. The guide pipe is vertically installed on the lower surface of the blanking fixing plate, and the guide pipe is coaxially arranged with the blanking hole of the installation base plate. The blanking block is installed at the middle position between the blanking fixing plate and the installation base plate. A through hole is provided in the middle of the blanking block. The blanking cylinder is installed on one side of the blanking block. The end of the driving rod of the blanking cylinder is fixedly connected to the blanking block. By the telescopic action of the blanking cylinder, the blanking block is driven to reciprocate horizontally, so as to drive the through hole of the blanking block to switch between the coaxial or misaligned states with the blanking hole of the installation base plate.

[0009] As an improvement of the present invention, a vertical riser for fixedly supporting the cigarette conveying mechanism is provided inside the frame box. The cigarette conveying mechanism includes a receiving component and a pushing rod component. The receiving component is used to receive the cigarettes falling from the guide pipe, and the pushing rod component is used to push the cigarettes in the receiving component to the circumferential conveying mechanism. Both the receiving component and the pushing rod component are connected to the vertical riser.

[0010] As a further improvement of the present invention, the receiving component includes a receiving motor, a blanking connecting piece and a blanking pipe. The receiving motor is fixed on the rear side surface of the vertical riser. The driving shaft of the receiving motor penetrates the vertical riser, and the end of the driving shaft of the receiving motor is fixedly connected to the blanking connecting piece. The blanking connecting piece is fixedly connected with the blanking pipe. A hollow cavity structure with one end open is provided inside the blanking pipe. A long and narrow opening gap that penetrates up and down is provided on the side surface of the blanking pipe along the length direction. By the rotation drive of the receiving motor, the blanking pipe swings within a 90° rotation angle range. When the blanking pipe rotates below the guide pipe, the cigarettes falling through the guide pipe enter the hollow cavity of the blanking pipe through the opening of the blanking pipe. Subsequently, the blanking pipe swings and rotates by 90° driven by the receiving motor until the blanking pipe is horizontally placed. At this time, the cigarettes in the blanking pipe are in a waiting state to be pushed out.

[0011] As a further improvement of the present invention, the push rod assembly includes a push rod, a push rod slider, a push rod guide rail, a push rod motor and a push rod synchronous belt assembly. The push rod is used to cooperate with the blanking pipe to realize the cigarette pushing action. A pushing portion for cooperating with the opening gap is provided at the lower end of the push rod. The push rod guide rail is horizontally fixed on the front side of the vertical plate. The push rod slider is slidably connected to the push rod guide rail, and the push rod slider is fixedly connected to the upper end of the push rod. The push rod synchronous belt assembly includes two sets of synchronous wheels and a synchronous belt. The two sets of synchronous wheels are located at the same horizontal position. One set of synchronous wheels is installed on the rear side of the vertical plate and the synchronous wheels are kept in a freely rotating state. The other set of synchronous wheels is fixedly connected to the drive shaft of the push rod motor. The push rod motor is fixed on the rear side of the vertical plate. The synchronous belt drives and connects the two sets of synchronous wheels. The push rod slider is connected to one side edge of the synchronous belt connecting plate, and the opposite side edge of the synchronous belt connecting plate is fixedly connected to the synchronous belt. By driving the synchronous belt to rotate through the push rod motor, the push rod slider is driven to linearly displace along the push rod guide rail, and further the push rod connected to the push rod slider is driven to move in the horizontal direction.

[0012] As a further improvement of the present invention, the circumferential handling mechanism includes a handling motor and a rotating handling arm. The handling motor is fixed on the inner bottom surface of the frame box through a motor mounting plate. Connecting portions and handling portions are respectively provided at both ends of the rotating handling arm. The connecting portion of the rotating handling arm is fixed to the end of the drive shaft of the handling motor. An arc-shaped bearing surface is provided on the handling portion of the rotating handling arm. Air holes are provided on the arc-shaped bearing surface. An air passage communicating with the air holes is provided in the middle of the rotating handling arm. An installation air hole for connecting an external air source is provided at the central end face position of the connecting portion. The installation air hole communicates with the air passage.

[0013] As a further improvement of the present invention, the measuring mechanism includes a fixed platform, rollers, a measuring motor and a parallel light source. The fixed platform includes a fixed bottom plate and two sets of oppositely arranged supporting side plates. Both sets of supporting side plates are fixedly connected to the fixed bottom plate. Two rollers are arranged in the middle position between the two sets of supporting side plates, and the two rollers are arranged in parallel. On the outer side surface of one set of supporting side plates, there are a first synchronous pulley and a second synchronous pulley. The first synchronous pulley is connected to the end of one roller, and the second synchronous pulley is connected to the supporting side plate. The measuring motor is located on the side of the roller and is fixed to the fixed bottom plate. There is a third synchronous pulley on the driving shaft of the measuring motor. The first synchronous pulley, the second synchronous pulley and the third synchronous pulley are driven by the same synchronous belt. On the outer side surface of the opposite supporting side plate, there are a fourth synchronous pulley and a fifth synchronous pulley. The fourth synchronous pulley is connected to the end of the other roller, and the fifth synchronous pulley is connected to the opposite supporting side plate. And there is a tension pulley on the opposite supporting side plate. The fourth synchronous pulley, the fifth synchronous pulley and the tension pulley are driven by the same synchronous belt. The parallel light source is located directly below the middle gap between the two rollers, and the illumination direction of the parallel light source faces the gap position between the two rollers.

[0014] As a further improvement of the present invention, a shutter assembly is included in the measuring mechanism. The shutter assembly is arranged on the fixed bottom plate. The shutter assembly includes a shutter, a shutter mounting seat, a shutter connecting slider, a shutter guide rail, a shutter fixing block and a shutter lead screw motor. The shutter lead screw motor is a through-type linear stepping motor. The shutter lead screw motor is fixed to the fixed bottom plate through the shutter mounting seat. The shutter fixing block is in an L-shaped structure, and the shorter part of the shutter fixing block is fixedly connected to the shutter lead screw motor. The longer part surface of the shutter fixing block is fixedly connected to the shutter guide rail. The sliding direction of the shutter guide rail is parallel to the axis of the roller. The shutter connecting slider is slidably connected to the shutter guide rail. The shutter connecting slider is connected to the end of the lead screw of the shutter lead screw motor. The shutter connecting slider is driven by the shutter lead screw motor to slide along the shutter guide rail. The shutter is located above the two rollers, and one side edge of the shutter is fixedly connected to the shutter connecting slider.

[0015] As a further improvement of the present invention, a fixed layer plate for fixing the sampling mechanism is provided above the measuring mechanism in the frame box. The sampling mechanism includes a camera, a lens, a clamping block, a lens fixing vertical plate and an annular light source. The lens fixing vertical plate is fixedly connected to the fixed layer plate. The lens is clamped and fixedly connected to the lens fixing vertical plate by a pair of clamping blocks. The upper end of the lens is connected to the camera, and the lower end of the lens penetrates through the fixed layer plate and extends to the lower surface of the fixed layer plate. The annular light source is coaxially arranged at the lower end position of the lens, and the annular light source is fixedly connected to the lower surface of the fixed layer plate through a light source connecting plate.

[0016] After adopting such a design, the present invention has at least the following advantages:

[0017] (1) The cigarette physical parameter detection device for segmented cigarettes of the present invention realizes automatic input and sorting of cigarettes through a cigarette distributor mechanism, changes the cigarette conveying state, makes the cigarettes fall vertically into the cigarette conveying mechanism, and transports the cigarettes to the measuring mechanism through the automatic transportation of the cigarette conveying mechanism and the circumferential handling mechanism, so that the sampling mechanism can complete the photographing. After the photographing is completed, the cigarettes can be automatically removed by the circumferential handling mechanism and centrally recycled into the cigarette recycling box. This device integrates functions of cigarette input, conveying, output, detection, and recycling, with a low degree of manual participation and a high degree of automation, which can greatly improve the cigarette detection speed and detection efficiency.

[0018] (2) In the cigarette physical parameter detection device for segmented cigarettes of the present invention, the blanking control mechanism can ensure the intermittent falling of cigarettes, so as to ensure that the cigarettes are transported through the cigarette conveying mechanism and the circumferential handling mechanism in sequence during the cigarette detection process, which not only ensures that the cigarettes are intermittently placed in the measuring mechanism at a certain frequency during the detection process, but also ensures the continuity of the detection process without interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, the following further detailed description of the present invention is provided in conjunction with the drawings and specific embodiments.

[0020] Figure 1 is the overall structural schematic diagram of the cigarette physical parameter detection device for segmented cigarettes in the embodiment of the present invention.

[0021] Figure 2 is the side view structural schematic diagram of the cigarette physical parameter detection device for segmented cigarettes in the embodiment of the present invention.

[0022] Figure 3 is the assembly position schematic diagram of each internal structure of the cigarette physical parameter detection device for segmented cigarettes in the embodiment of the present invention.

[0023] Figure 4 is the overall structural schematic diagram of the cigarette distributor mechanism in the embodiment of the present invention.

[0024] Figure 5 is the rear view structural schematic diagram of the cigarette distributor mechanism in the embodiment of the present invention.

[0025] Figure 6 is the exploded structural schematic diagram of the cigarette distributor mechanism in the embodiment of the present invention.

[0026] Figure 7 is the structural schematic diagram of the cigarette separation partition in the cigarette distributor mechanism in the embodiment of the present invention.

[0027] Figure 8It is a schematic diagram of the overall structure of the blanking control mechanism in the embodiment of the present invention.

[0028] Figure 9 It is a front side axonometric structure schematic diagram of the cigarette conveying mechanism in the embodiment of the present invention.

[0029] Figure 10 It is a rear side axonometric structure schematic diagram of the cigarette conveying mechanism in the embodiment of the present invention.

[0030] Figure 11 It is a state schematic diagram when the material receiving component is located below the blanking control mechanism in the embodiment of the present invention.

[0031] Figure 12 It is a schematic diagram of the structure of the circumferential handling mechanism in the embodiment of the present invention.

[0032] Figure 13 It is an internal sectional view schematic diagram of the rotary handling arm in the embodiment of the present invention.

[0033] Figure 14 It is a schematic diagram of the overall structure of the measuring mechanism in the embodiment of the present invention.

[0034] Figure 15 It is a schematic diagram of the structure of the measuring mechanism in the embodiment of the present invention without the measuring motor.

[0035] Figure 16 It is a schematic diagram of the structure of the shutter assembly in the measuring mechanism of the embodiment of the present invention.

[0036] Figure 17 It is a schematic diagram of the overall structure of the sampling mechanism in the embodiment of the present invention.

[0037] Figure 18 It is a front view structure schematic diagram of the sampling mechanism in the embodiment of the present invention.

[0038] The meanings of the reference numerals in the drawings:

[0039] 1. Frame box; 2. Smoke distributing structure; 201. Support vertical plate; 2011. Guide groove; 202. Smoke distributing partition; 2021. Smoke guiding sliding groove; 203. Feeding plate; 2031. Feeding hole; 204. Rear cover plate; 205. Feeding motor; 206. Feeding driving disc; 207. Bearing projection; 208. Smoke guiding body; 2081. Vertical smoke guiding groove; 209. Bin; 3. Blank dropping control mechanism; 301. Blank dropping fixed plate; 302. Blank dropping block; 303. Blank dropping cylinder; 304. Guide pipe; 4. Fiber optic switch module; 5. Cigarette conveying mechanism; 5A. Push rod assembly; 5B. Material receiving assembly; 501. Push rod motor; 502. Synchronous pulley; 503. Synchronous belt connecting plate; 504. Push rod slider; 505. Push rod guide rail; 506. Push rod; 507. Pushing part; 508. Material receiving motor; 509. Blank dropping connecting piece; 510. Blank dropping pipe; 511. Opening gap; 6. Circumferential handling mechanism; 601. Handling motor; 602. Motor mounting plate; 603. Rotary handling arm; 6031. Connecting part; 6032. Handling part; 604. Mounting air hole; 605. Ventilation duct; 606. Air hole; 7. Measuring mechanism; 701. Support side plate; 702. Fixed bottom plate; 703. Roller; 704. First synchronous pulley; 705. Second synchronous pulley; 706. Third synchronous pulley; 707. Measuring motor; 708. Shutter assembly; 7081. Shutter lead screw motor; 7082. Shutter mounting seat; 7083. Shutter fixing block; 7084. Shutter connecting slider; 7085. Shutter guide rail; 7086. Shutter; 709. Fourth synchronous pulley; 710. Tensioning pulley; 711. Fifth synchronous pulley; 712. Parallel light source; 8. Sampling mechanism; 801. Fixed layer board; 802. Lens fixing vertical plate; 803. Clamp block; 804. Lens; 805. Camera; 806. Ring light source; 9. Cigarette recycling box; 10. Vertical vertical plate; 11. Computer equipment; 12. Mounting bottom plate; 1201. Blank dropping hole; 13. Recycling port. Detailed implementation manners

[0040] Examples of the embodiments in the present invention are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] Combined with Figures 1-3 As shown, this embodiment provides a physical parameter detection device for cigarette filters based on machine vision, which includes a frame box 1, a cigarette distributor mechanism 2 for cigarette input, a blanking control mechanism 3 for controlling the output of cigarettes from the cigarette distributor mechanism 2, a cigarette conveying mechanism 5 for cigarette conveying, a circumferential handling mechanism 6 for handling the cigarettes of the cigarette conveying mechanism 5 to the measuring mechanism 7, a measuring mechanism 7 for carrying the cigarettes to be detected, and a sampling mechanism 8 for image sampling of the cigarettes to be detected.

[0043] Specifically, in this embodiment, the frame box 1 has a rectangular hollow box structure, and an installation bottom plate 12 is provided inside the frame box 1. The cigarette distributor mechanism 2 is installed above the installation bottom plate 12, as Figures 4-7As shown in the figure, the cigarette separating mechanism 2 includes a mounting base plate 12, a cigarette collecting pipe, a cigarette separating partition plate 202, a rear cover plate 204, a feeding plate 203, a feeding driving disk 206 and a feeding motor 205. A material bin 209 is provided at the upper part of the cigarette collecting pipe. The material bin 209 is fixed to the mounting base plate 12 by two groups of oppositely arranged supporting vertical plates 201. Guide grooves 2011 are respectively provided on the opposite side surfaces of the two groups of supporting vertical plates 201 in the cigarette collecting pipe. Both side edges of the feeding plate 203 are arranged in the guide grooves 2011, and the feeding plate 203 can freely slide along the length direction of the guide grooves 2011. The feeding plate 203 is closely attached to the rear opening of the material bin 209, and a strip-shaped feeding hole 2031 is provided on the surface of the feeding plate 203. The cigarette separating partition plate 202 is arranged at the rear side of the feeding plate 203, and the rear cover plate 204 is closely connected to the rear side of the cigarette separating partition plate 202. A smoke guiding sliding groove 2021 for changing the cigarette from a horizontal state to a vertical state is provided at the middle position between the cigarette separating partition plate 202 and the rear cover plate 204. To drive the feeding plate 203 to slide reciprocally, a driving disk mounting groove is provided at the front side of the cigarette separating partition plate 202. The feeding driving disk 206 is rotatably arranged in the driving disk mounting groove. The feeding motor 205 is fixed to the rear side surface of the cigarette separating partition plate 202, and the driving shaft of the feeding motor 205 penetrates through the cigarette separating partition plate 202, and the end of the driving shaft is fixedly connected to the center of the feeding driving disk 206. A bearing projection 207 for abutting against the lower edge of the feeding plate 203 is provided at the edge position of the feeding driving disk 206. When the feeding motor 205 drives the feeding driving disk 206 to rotate, the bearing projection 207 moves upward to lift the feeding plate 203. When the bearing projection 207 moves downward, the feeding plate 203 slides downward under the action of its own weight. When the feeding plate 203 is at the lower limit position of displacement, the cigarettes in the hopper will enter the feeding hole 2031. As the feeding plate 203 moves upward, the feeding hole 2031 drives the cigarettes to move upward. When the feeding plate 203 reaches the upper limit position of displacement, the cigarettes in the feeding hole 2031 will fall into the smoke guiding sliding groove 2021 between the cigarette separating partition plate 202 and the rear cover plate 204. Further, in this embodiment, a smoke guiding body 208 including a vertical smoke guiding groove 2081 is further provided at the side position of the cigarette separating partition plate 202. The smoke guiding body 208 is fixedly arranged on the mounting base plate 12, and a blanking hole 1201 corresponding to the vertical smoke guiding groove 2081 is provided on the mounting base plate 12. When the cigarettes fall from the smoke guiding sliding groove 2021 into the vertical smoke guiding groove 2081, the cigarettes change from a horizontal state to a vertical state, and the cigarettes enter the lower blanking control mechanism 3 through the blanking hole 1201.

[0044] Further, in combination with Figure 8As shown in the figure, in this embodiment, the blanking control mechanism 3 includes a blanking cylinder 303, a blanking block 302, a blanking fixing plate 301 and a material guiding pipe 304. Among them, the blanking fixing plate 301 is located below the mounting base plate 12, and the blanking fixing plate 301 is fixedly connected relative to the mounting base plate 12; the material guiding pipe 304 is vertically arranged on the lower surface of the blanking fixing plate 301, and the material guiding pipe 304 is coaxially arranged with the blanking hole 1201 of the mounting base plate 12; the blanking block 302 is arranged at the middle position between the blanking fixing plate 301 and the mounting base plate 12. A through hole is provided in the middle of the blanking block 302. The blanking cylinder 303 is arranged on one side of the blanking block 302. The end of the driving rod of the blanking cylinder 303 is fixedly connected to the blanking block 302. By the telescopic action of the blanking cylinder 303, the blanking block 302 is driven to reciprocate horizontally, so as to drive the through hole of the blanking block 302 to switch between the coaxial or misaligned states with the blanking hole 1201 of the mounting base plate 12, thereby realizing the control of cigarette blanking.

[0045] Further, when the blanking control mechanism 3 controls the cigarettes to fall and pass through the material guiding pipe 304, the cigarette conveying mechanism 5 is further provided below the material guiding pipe 304. In this embodiment, a vertical plate 10 for fixedly supporting the cigarette conveying mechanism 5 is provided inside the frame box 1. The cigarette conveying mechanism 5 can further convey the cigarettes downward. Combining Figures 9-11 As shown in the figure, in this embodiment, the cigarette conveying mechanism 5 includes a receiving component 5B and a pushing rod component 5A. The receiving component 5B is used to receive the cigarettes falling from the material guiding pipe 304, and the pushing rod component 5A is used to push the cigarettes in the receiving component 5B to the circumferential handling mechanism 6.

[0046] Combining Figures 9-11 As shown in the figure, the receiving component 5B includes a receiving motor 508, a blanking connecting piece 509 and a blanking pipe 510. Among them, the receiving motor 508 is fixed on the rear side of the vertical plate 10, and the driving shaft of the receiving motor 508 penetrates the vertical plate 10, and the end of the driving shaft of the receiving motor 508 is fixedly connected to the blanking connecting piece 509. The blanking connecting piece 509 is fixedly connected with the blanking pipe 510. The blanking pipe 510 is internally provided with a hollow cavity structure with one end open, and a long and narrow opening gap 511 that penetrates up and down is provided on the side surface of the blanking pipe 510 along the length direction. By the rotation drive of the receiving motor 508, the blanking pipe 510 swings within a 90° rotation angle range. When the blanking pipe 510 rotates below the material guiding pipe 304, the cigarettes falling through the material guiding pipe 304 can enter the hollow cavity of the blanking pipe 510 through the opening of the blanking pipe 510. Subsequently, the blanking pipe 510 swings and rotates by 90° driven by the receiving motor 508 until the blanking pipe 510 is horizontally placed. At this time, the cigarettes in the blanking pipe 510 are in a waiting state to be pushed out.

[0047] Combining Figures 9-11As shown, the push rod assembly 5A includes a push rod 506, a push rod slider 504, a push rod guide rail 505, a push rod motor 501 and a push rod synchronous belt assembly. The push rod 506 is used to cooperate with the blanking pipe 510 to realize the cigarette pushing action. A pushing part 507 for cooperating with the opening gap 511 is provided at the lower end of the push rod 506. The push rod guide rail 505 is horizontally fixed on the front side of the vertical plate 10. The push rod slider 504 is slidably connected to the push rod guide rail 505, and the push rod slider 504 is fixedly connected to the upper end of the push rod 506. The push rod synchronous belt assembly includes two sets of synchronous wheels 502 and a synchronous belt. The two sets of synchronous wheels 502 are located at the same horizontal position. One set of synchronous wheels 502 is arranged on the rear side of the vertical plate 10 and the synchronous wheels 502 are kept in a free rotation state. The other set of synchronous wheels 502 is fixedly connected to the drive shaft of the push rod motor 501. The push rod motor 501 is fixed on the rear side of the vertical plate 10. The synchronous belt connects the two sets of synchronous wheels 502. At the same time, one side edge of the synchronous belt connecting plate 503 is connected to the push rod slider 504, and the opposite side edge of the synchronous belt connecting plate 503 is fixedly connected to the synchronous belt. By driving the synchronous belt to rotate through the push rod motor 501, the push rod slider 504 can be driven to linearly displace along the push rod guide rail 505, and further drive the push rod 506 connected to the push rod slider 504 to move in the horizontal direction.

[0048] In this embodiment, to avoid the vertical plate 10 interfering with the displacement of the synchronous belt connecting plate 503, a horizontally arranged strip-shaped displacement hole is provided on the vertical plate 10. When the synchronous belt connecting plate 503 moves horizontally, the synchronous belt connecting plate 503 can move in this strip-shaped displacement hole.

[0049] It should also be noted that in this embodiment, an optical fiber switch module 4 is further provided below the material guiding pipe 304, as Figure 9 shown. The optical fiber switch module 4 can detect the state of the cigarettes falling in the material guiding pipe 304. When a cigarette passes through the optical fiber switch module 4, a control signal will be triggered. This control signal can be used to control the telescopic movement of the blanking cylinder 303 of the blanking control mechanism 3 to control the intermittent falling of the cigarettes in the material guiding pipe 304.

[0050] More specifically, as Figure 12 and Figure 13As shown in the figure, in this embodiment, the circumferential handling mechanism 6 includes a handling motor 601 and a rotating handling arm 603. The handling motor 601 is fixed to the inner bottom surface of the frame box 1 through a motor mounting plate 602. Both ends of the rotating handling arm 603 are respectively provided with a connecting portion 6031 and a handling portion 6032. The connecting portion 6031 of the rotating handling arm 603 is fixed to the end of the driving shaft of the handling motor 601. The handling portion 6032 of the rotating handling arm 603 is provided with an arc bearing surface, and air holes 606 are arranged on the arc bearing surface. An air passage 605 communicating with the air holes 606 is arranged in the middle of the rotating handling arm 603. An installation air hole 604 connecting to an external air source is arranged at the central end face position of the connecting portion 6031. The installation air hole 604 is communicated with the air passage 605. By blowing air into or extracting air from the air passage 605 of the rotating handling arm 603 through an external air source, air is blown out or sucked in through the air holes 606 on the arc bearing surface of the handling portion 6032. When a cigarette is placed on the arc bearing surface of the handling portion 6032, blowing air out or sucking air in through the air holes 606 can drive the cigarette to be fixed to or separated from the arc bearing surface, so as to realize stable handling of the cigarette.

[0051] Further, in this embodiment, the measuring mechanism 7 is the main detection device of this cigarette filter physical parameter detection device. As Figure 14 and 15 shown, it specifically includes a fixed platform, roller shafts 703, a measuring motor 707 and a parallel light source 712. The fixed platform includes a fixed bottom plate 702 and two groups of relatively arranged supporting side plates 701. Both groups of supporting side plates 701 are fixedly connected to the fixed bottom plate 702. Two groups of roller shafts 703 are arranged in the middle position between the two groups of supporting side plates 701, and the two groups of roller shafts 703 are arranged in parallel. On the outer side surface of one group of supporting side plates 701, a first synchronous pulley 704 and a second synchronous pulley 705 are provided. The first synchronous pulley 704 is connected to the end of one group of roller shafts 703, and the second synchronous pulley 705 is connected to the supporting side plate 701. The measuring motor 707 is located beside the roller shafts 703, and the measuring motor 707 is fixed to the fixed bottom plate 702. A third synchronous pulley 706 is provided on the driving shaft of the measuring motor 707. The first synchronous pulley 704, the second synchronous pulley 705 and the third synchronous pulley 706 are driven by the same synchronous belt. On the outer side surface of the opposite supporting side plate 701, a fourth synchronous pulley 709 and a fifth synchronous pulley 711 are provided. The fourth synchronous pulley 709 is connected to the end of the other group of roller shafts 703, and the fifth synchronous pulley 711 is connected to the opposite supporting side plate 701. At the same time, a tension pulley 710 is also provided on the opposite supporting side plate 701. The fourth synchronous pulley 709, the fifth synchronous pulley 711 and the tension pulley 710 are driven by the same synchronous belt. The parallel light source 712 is located directly below the middle gap between the two groups of roller shafts 703, and the illumination direction of the parallel light source 712 faces the gap position between the two groups of roller shafts 703.

[0052] Further, in this embodiment, the measuring mechanism 7 further includes a shutter assembly 708. As Figure 16 shown, the shutter assembly 708 is installed on the fixed base plate 702. The shutter assembly 708 includes a shutter 7086, a shutter mounting base 7082, a shutter connection slider 7084, a shutter guide rail 7085, a shutter fixing block 7083, and a shutter lead screw motor 7081. The shutter lead screw motor 7081 is a through-type linear stepper motor. The shutter lead screw motor 7081 is fixed to the fixed base plate 702 through the shutter mounting base 7082. The shutter fixing block 7083 has an L-shaped structure, and the shorter part of the shutter fixing block 7083 is fixedly connected to the shutter lead screw motor 7081. The longer part surface of the shutter fixing block 7083 is fixedly connected to the shutter guide rail 7085. The sliding direction of the shutter guide rail 7085 is parallel to the axis of the roller 703. The shutter connection slider 7084 is slidably connected to the shutter guide rail 7085. The shutter connection slider 7084 is connected to the end of the lead screw of the shutter lead screw motor 7081. The shutter connection slider 7084 can be driven by the shutter lead screw motor 7081 to slide along the shutter guide rail 7085. The shutter 7086 is located above the two rollers 703, and one side edge of the shutter 7086 is fixedly connected to the shutter connection slider 7084. In this embodiment, the parallel light source 712 can be blocked by the shutter 7086 during the cigarette rod detection process. The shutter lead screw motor 7081 drives the shutter connection slider 7084 to drive the shutter 7086 to move horizontally, so that the shutter 7086 can adapt to the measurement of cigarette rods of different lengths.

[0053] Correspondingly, in this embodiment, a sampling mechanism 8 for image sampling is installed directly above the measuring mechanism 7. As Figure 17 and Figure 18 shown, a fixed layer plate 801 for fixing the sampling mechanism 8 is provided above the measuring mechanism 7 in the frame box 1. In this embodiment, the sampling mechanism 8 includes a camera 805, a lens 804, a clamping block 803, a lens fixing vertical plate 802, and an annular light source 806. The lens fixing vertical plate 802 is fixedly connected to the fixed layer plate 801. The lens 804 is clamped and fixedly connected to the lens fixing vertical plate 802 through a pair of clamping blocks 803. The upper end of the lens 804 is connected to the camera 805. The lower end of the lens 804 penetrates the fixed layer plate 801 and extends to the lower surface of the fixed layer plate 801. The annular light source 806 is coaxially arranged at the lower end position of the lens 804, and the annular light source 806 is fixedly connected to the lower surface of the fixed layer plate 801 through a light source connecting plate.

[0054] Furthermore, in this embodiment, to ensure that the circumferential conveying mechanism 6 can continuously convey cigarette rods between the cigarette rod conveying mechanism 5 and the measuring mechanism 7, when the rotary conveying arm 603 of the circumferential conveying mechanism 6 conveys between them, it is necessary to ensure that when the conveying part 6032 of the rotary conveying arm 603 is at the position of the cigarette rod conveying mechanism 5, the arc bearing surface on the conveying part 6032 is flush with the blanking pipe 510, so that the conveying part 6032 can stably receive the cigarette rods in the blanking pipe 510; and when the conveying part 6032 of the rotary conveying arm 603 is at the position of the measuring mechanism 7, it is necessary to ensure that the conveying part 6032 is directly above the gap between the two sets of rollers 703, so as to ensure that the cigarette rods on the conveying part 6032 just fall between the two sets of rollers 703.

[0055] Specifically, for the cigarette rod segment physical parameter detection device in this embodiment, its working steps are as follows: when in use, first, cigarette rods are placed in the silo 209. The cigarette rods change from the horizontally placed state to the vertically upright state under the operation of the cigarette separating mechanism 2, and pass through the blanking hole 1201 of the mounting base plate 12. At this time, the blanking pipe 510 in the cigarette rod conveying mechanism 5 is in the vertical state driven by the receiving motor 508, that is, the blanking pipe 510 is directly below the guiding pipe 304 at this time, and at the same time, each component of the push rod assembly 5A is at the left extreme position of the push rod guide rail 505; when the cigarette rods fall from the guiding pipe 304 into the blanking pipe 510, the receiving motor 508 will drive the blanking pipe 510 to rotate 90 degrees. At this time, the blanking pipe 510 becomes a horizontally transverse state. Next, the push rod motor 501 in the push rod assembly 5A drives the synchronous belt to rotate, and drives the push rod slider 504 to linearly displace along the push rod guide rail 505, and further drives the push rod 506 connected to the push rod slider 504 to translate to the right. During this process, the pushing part 507 of the push rod 506 will enter the opening gap 511 of the blanking pipe 510 and push out the cigarette rods in the blanking pipe 510; at this time, the rotary conveying arm 603 of the circumferential conveying mechanism 6 will be pre-rotated to the position of the blanking pipe 510. When the pushing part 507 of the push rod 506 completely pushes out the cigarette rods in the blanking pipe 510 to the arc bearing surface of the conveying part 6032, the external air source sucks air, so that the cigarette rods are adsorbed on the arc bearing surface. Then, the conveying motor 601 drives the rotary conveying arm 603 to rotate 180 degrees, so that the conveying part 6032 of the rotary conveying arm 603 is directly above the two sets of rollers 703. The external air source stops sucking air or blowing air, so that the cigarette rods are separated from the arc bearing surface and fall to the intermittent position between the two sets of rollers 703. At this time, the conveying process of the cigarette rods is completed.

[0056] When the cigarette is transported, it is located in the gap between the two rollers 703 in the measuring mechanism 7. The roller 703 is driven to rotate by the measuring motor 707, causing the cigarette to rotate slowly. At this time, the camera 805 will take an image of the cigarette, and at the same time, the parallel light source 712 and the annular light source 806 will be used to illuminate the cigarette to take a photo that meets the required clarity. The photo is then sent to the computer device 11 on the top of the rack box 1 for image processing, thereby obtaining cigarette parameters such as the current cigarette length, diameter and internal segment length.

[0057] When the inspection is completed, the rotating transport arm 603 of the circular transport mechanism 6 will rotate again to the top of the two sets of rollers 703, and adsorb the cigarettes carried on the two sets of rollers 703 to the arc bearing surface, and then rotate counterclockwise to a position slightly below the cigarette conveying mechanism 5. Since a recycling port 13 is provided at the bottom of the rack box 1, and a cigarette recovery box 9 is placed below the recycling port 13, the cigarettes on the arc bearing surface are blown through the air holes 606 at this time, so that the cigarettes are separated from the arc bearing surface and fall into the cigarette recovery box 9, completing the cigarette recovery; then the rotating transport arm 603 is reset to a position flush with the cigarette conveying mechanism 5, takes over the next cigarette, and starts the next inspection process.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art can make some simple modifications, equivalent changes or modifications based on the technical content disclosed above, which all fall within the scope of protection of the present invention.

Claims

1. A physical parameter detection device for cigarette segmentation based on machine vision, characterized in that, It includes a frame box, a cigarette separating mechanism for cigarette input, a blanking control mechanism for controlling the output of cigarettes by the cigarette separating mechanism, a cigarette conveying mechanism for cigarette conveying, a circumferential handling mechanism for transporting the cigarettes of the cigarette conveying mechanism to the measuring mechanism, a measuring mechanism for carrying the cigarettes to be detected, and a sampling mechanism for image sampling of the cigarettes to be detected; Among them, the frame box is in the structure of a rectangular hollow box body. An installation bottom plate is provided inside the frame box. The cigarette separating mechanism is installed above the installation bottom plate. The cigarettes are changed from a horizontal state to a vertical state by the cigarette separating mechanism and enter the blanking control mechanism. The blanking control mechanism is located on the lower surface of the installation bottom plate, and the blanking control mechanism controls the intermittent falling of cigarettes into the cigarette conveying mechanism. The cigarette conveying mechanism is located below the blanking control mechanism. The cigarettes are conveyed downward by the cigarette conveying mechanism and are transported to the measuring mechanism through the circumferential handling mechanism. The measuring mechanism is installed on the bottom surface inside the frame box. The sampling mechanism is located above the measuring mechanism, and the sampling mechanism performs image sampling on the cigarettes in the measuring mechanism; The measuring mechanism includes a fixed platform, rollers, a measuring motor and a parallel light source. Among them, the fixed platform includes a fixed bottom plate and two sets of relatively arranged supporting side plates. Both sets of supporting side plates are fixedly connected to the fixed bottom plate. Two sets of rollers are installed in the middle position between the two sets of supporting side plates, and the two sets of rollers are arranged in parallel. A first synchronous pulley and a second synchronous pulley are provided on the outer side surface of one set of supporting side plates. The first synchronous pulley is connected to the end of one set of rollers, and the second synchronous pulley is connected to the supporting side plate. The measuring motor is located beside the rollers and is fixed on the fixed bottom plate. A third synchronous pulley is provided on the driving shaft of the measuring motor. The first synchronous pulley, the second synchronous pulley and the third synchronous pulley are driven by the same synchronous belt. A fourth synchronous pulley and a fifth synchronous pulley are provided on the outer side surface of the opposite supporting side plate. Among them, the fourth synchronous pulley is connected to the end of the other set of rollers, the fifth synchronous pulley is connected to the opposite supporting side plate, and a tension pulley is provided on the opposite supporting side plate. The fourth synchronous pulley, the fifth synchronous pulley and the tension pulley are driven by the same synchronous belt. The parallel light source is directly below the middle gap between the two sets of rollers, and the light irradiation direction of the parallel light source faces the gap position between the two sets of rollers; The measuring mechanism includes a shutter assembly. The shutter assembly is installed on a fixed bottom plate. The shutter assembly includes a shutter, a shutter mounting base, a shutter connecting slider, a shutter guide rail, a shutter fixing block, and a shutter lead screw motor. The shutter lead screw motor is a through-type linear stepping motor. The shutter lead screw motor is fixed to the fixed bottom plate through the shutter mounting base. The shutter fixing block is in an L-shaped structure. The shorter part of the shutter fixing block is fixedly connected to the shutter lead screw motor. The longer part of the shutter fixing block is fixedly connected to the shutter guide rail on its surface. The sliding direction of the shutter guide rail is parallel to the axis of the roller. The shutter connecting slider is slidably connected to the shutter guide rail. The shutter connecting slider is connected to the end of the lead screw of the shutter lead screw motor. The shutter connecting slider is driven by the shutter lead screw motor to slide along the shutter guide rail. The shutter is located above the two rollers. One side of the shutter is fixedly connected to the shutter connecting slider.

2. The cigarette segment physical parameter detection device according to claim 1, characterized in that, The cigarette separating mechanism includes a cigarette collecting pipe, a cigarette separating partition, a rear cover plate, a feeding plate, a feeding driving disc, and a feeding motor. A material bin is provided at the upper part of the cigarette collecting pipe. The material bin is fixed to the installation bottom plate through two relatively arranged support vertical plates. Guide grooves are respectively provided on the opposite side surfaces of the two support vertical plates in the cigarette collecting pipe. The two side edges of the feeding plate are respectively installed in the guide grooves, and the feeding plate can freely slide along the length direction of the guide grooves. The feeding plate is closely attached to the rear opening of the material bin. Long strip-shaped feeding holes are provided on the surface of the feeding plate. The cigarette separating partition is installed behind the feeding plate. The rear cover plate is closely attached to the rear side of the cigarette separating partition. A smoke guiding chute for changing the cigarette from a horizontal state to a vertical state is provided at the middle position between the cigarette separating partition and the rear cover plate. A driving disc installation groove is provided on the front side of the cigarette separating partition. The feeding driving disc is rotatably installed in the driving disc installation groove. The feeding motor is fixed to the rear side surface of the cigarette separating partition. The driving shaft of the feeding motor penetrates the cigarette separating partition, and the end of the driving shaft is fixedly connected to the center of the feeding driving disc. Bearing protrusions for abutting against the lower edge of the feeding plate are provided at the edge position of the feeding driving disc. A smoke guiding body including a vertical smoke guiding groove is provided at the side position of the cigarette separating partition. The smoke guiding body is fixedly installed on the installation bottom plate. A blanking hole is provided on the installation bottom plate corresponding to the vertical smoke guiding groove. When the cigarette falls into the vertical smoke guiding groove from the smoke guiding chute, the cigarette changes from a horizontal state to a vertical state, and the cigarette enters the blanking control mechanism through the blanking hole.

3. The cigarette segment physical parameter detection device according to claim 2, characterized in that, The blanking control mechanism includes a blanking cylinder, a blanking block, a blanking fixing plate and a material guiding pipe. The blanking fixing plate is located below the installation base plate and is fixedly connected to the installation base plate. The material guiding pipe is vertically installed on the lower surface of the blanking fixing plate and is coaxially arranged with the blanking hole of the installation base plate. The blanking block is arranged at the middle position between the blanking fixing plate and the installation base plate. A through hole is provided in the middle of the blanking block. The blanking cylinder is arranged on one side of the blanking block. The end of the driving rod of the blanking cylinder is fixedly connected to the blanking block. By the telescopic movement of the blanking cylinder, the blanking block is driven to reciprocate horizontally, so as to drive the through hole of the blanking block to switch between the coaxial state and the misaligned state with the blanking hole of the installation base plate.

4. The cigarette segment physical parameter detection device according to claim 3, characterized in that, Inside the frame box, there is a vertical plate for fixedly supporting the cigarette conveying mechanism. The cigarette conveying mechanism includes a material receiving component and a push rod component. The material receiving component is used to receive the cigarettes falling from the material guiding pipe, and the push rod component is used to push the cigarettes in the material receiving component to the circumferential conveying mechanism. Both the material receiving component and the push rod component are connected to the vertical plate.

5. The cigarette segment physical parameter detection device according to claim 4, characterized in that The material receiving component includes a material receiving motor, a blanking connecting piece and a material receiving pipe. The material receiving motor is fixed on the rear side surface of the vertical plate. The driving shaft of the material receiving motor penetrates the vertical plate, and the end of the driving shaft of the material receiving motor is fixedly connected to the blanking connecting piece. The blanking connecting piece is fixedly connected with the material receiving pipe. The material receiving pipe has a hollow cavity structure with one end open inside, and a long and narrow opening gap that runs through vertically along the length direction is provided on the side surface of the material receiving pipe. By the rotation drive of the material receiving motor, the material receiving pipe swings within a 90° rotation angle range. When the material receiving pipe rotates below the material guiding pipe, the cigarettes falling through the material guiding pipe enter the hollow cavity of the material receiving pipe through the opening of the material receiving pipe. Subsequently, the material receiving pipe swings and rotates by 90° driven by the material receiving motor until the material receiving pipe is horizontally placed. At this time, the cigarettes in the material receiving pipe are in a waiting state for being pushed out.

6. The cigarette segment physical parameter detection device according to claim 5, wherein The push rod component includes a push rod, a push rod slider, a push rod guide rail, a push rod motor and a push rod synchronous belt component. The push rod is used to cooperate with the material receiving pipe to realize the cigarette pushing action. A pushing part for cooperating with the opening gap is provided at the lower end of the push rod. The push rod guide rail is horizontally fixed on the front side surface of the vertical plate. The push rod slider is slidably connected to the push rod guide rail, and the push rod slider is fixedly connected to the upper end of the push rod. The push rod synchronous belt component includes two groups of synchronous wheels and a synchronous belt. The two groups of synchronous wheels are located at the same horizontal position. One group of synchronous wheels is installed on the rear side surface of the vertical plate and remains in a freely rotating state. The other group of synchronous wheels is fixedly connected to the driving shaft of the push rod motor. The push rod motor is fixed on the rear side surface of the vertical plate. The synchronous belt is drivingly connected to the two groups of synchronous wheels. The push rod slider is connected to one side edge of the synchronous belt connecting plate, and the opposite side edge of the synchronous belt connecting plate is fixedly connected to the synchronous belt. By driving the synchronous belt to rotate by the push rod motor, the push rod slider is driven to linearly displace along the push rod guide rail, so as to drive the push rod connected to the push rod slider to move in the horizontal direction.

7. The cigarette segment physical parameter detection device according to any one of claims 1-6, characterized in that, The circumferential handling mechanism includes a handling motor and a rotating handling arm. The handling motor is fixed to the inner bottom surface of the frame box through a motor mounting plate. Both ends of the rotating handling arm are respectively provided with a connecting part and a handling part. The connecting part of the rotating handling arm is fixed to the end of the driving shaft of the handling motor. The handling part of the rotating handling arm is provided with an arc-shaped bearing surface, and air holes are arranged on the arc-shaped bearing surface. An air passage communicating with the air holes is arranged in the middle of the rotating handling arm. An installation air hole for connecting an external air source is arranged at the central end face position of the connecting part, and the installation air hole is communicated with the air passage.

8. The cigarette segment physical parameter detection device according to any one of claims 1-6, characterized in that, A fixed layer plate for fixing the sampling mechanism is arranged above the measuring mechanism in the frame box. The sampling mechanism includes a camera, a lens, a clamping block, a lens fixing vertical plate and an annular light source. The lens fixing vertical plate is fixedly connected to the fixed layer plate. The lens is clamped and fixedly connected to the lens fixing vertical plate through a pair of clamping blocks. The camera is connected to the upper end of the lens, and the lower end of the lens penetrates through the fixed layer plate and extends to the lower surface of the fixed layer plate. The annular light source is coaxially arranged at the lower end position of the lens, and the annular light source is fixedly connected to the lower surface of the fixed layer plate through a light source connecting plate.

Images