Cigarette filter stick sampling device based on visual system

Abstract

The utility model provides a cigarette filter stick sampling device based on a visual system. The cigarette filter stick sampling device comprises a hopper, a cigarette separating roller, a multi-specification cigarette branch groove rotating body, an image acquisition module, a negative pressure grabbing module, a multi-stage track, a controller and a cigarette storage area, the image acquisition module is mounted at the mobile end of the multi-stage track and is used for scanning the cigarette storage area; the negative pressure grabbing module is installed at the moving end of the multi-stage rail and used for transferring cigarettes between the cigarette storage area and the hopper. The hopper is arranged on one side of the multi-stage track; the cigarette separating roller is arranged below the hopper and is used for rotationally transferring the obtained cigarette filter sticks to the next station; a plurality of cigarette grooves of different specifications are formed in the circumferential direction of the multi-specification cigarette groove rotating body, and the multi-specification cigarette groove rotating body is rotationally installed on the outer surface of the cigarette separating roller; and the controller is in control connection with the image acquisition module, the negative pressure grabbing module, the multi-stage track and a driving part of the cigarette separating roller. The sampling device has the advantage of automatic feeding by utilizing a visual identification technology.

Description

Technical Field

[0001] This utility model relates to the field of cigarette filter rod parameter detection technology, specifically, to a cigarette filter rod sample feeding device based on a vision system. Background Technology

[0002] In the experimental research phase, cigarette manufacturing methods are diverse, and the testing platform used to detect cigarette parameters has automated processing capabilities, but the feeding process requires human assistance.

[0003] To meet the needs of automation, some devices for automatic feeding have been developed, such as devices that include a hopper and a cigarette sorting roller. The surface of the cigarette sorting roller is provided with an arc groove to hold a cigarette. By rotating the cigarette sorting roller, a cigarette is taken out of the hopper one at a time and sent to the next step of the inspection process, so as to realize the continuous inspection of cigarettes.

[0004] However, when there are many different sizes of cigarette filter rods, the cigarette separating roller cannot meet the needs of all cigarette filter rods. Therefore, it is necessary to replace different sample feeding modules regularly to meet the needs of different sizes of cigarette filter rods.

[0005] Moreover, the process of putting the cigarette filter rod into the hopper still requires manual intervention.

[0006] This results in a relatively limited overall level of automation.

[0007] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a vision-based cigarette filter rod feeding device that utilizes visual recognition technology for automatic feeding.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a cigarette filter rod feeding device based on a vision system, including a hopper, a cigarette separating roller, a multi-specification cigarette slot rotating body, an image acquisition module, a negative pressure gripping module, a multi-level track, a controller, and a cigarette storage area.

[0010] The image acquisition module is installed on the moving end of the multi-level track and is used to scan the cigarette storage area to obtain the size and specifications of the cigarette filter rod.

[0011] The negative pressure gripping module is installed on the moving end of the multi-level track and is used to transfer between the cigarette storage area and the hopper, adsorbing a single cigarette filter rod through negative pressure.

[0012] The hopper is located on one side of the multi-stage track and is used to receive cigarette filter rods;

[0013] The cigarette separating roller is located below the hopper and is used to rotate and transfer the obtained cigarette filter rods to the next work station.

[0014] The multi-specification cigarette slot rotating body is circumferentially provided with several cigarette slots of different specifications, and the multi-specification cigarette slot rotating body is rotatably installed in the cigarette distribution roller to form cigarette slots with adjustable specifications.

[0015] The controller controls the drive components connected to the image acquisition module, negative pressure gripping module, multi-level track, and smoke distribution roller.

[0016] Based on the above, the multi-level track includes a three-level track consisting of a longitudinal straight track, a vertical lifting track, and a transverse straight track. The image acquisition module and the negative pressure gripping module are both installed on the moving end slider of the transverse straight track.

[0017] Based on the above, the image acquisition module includes an industrial camera mounted on the slider of the mobile terminal with the sampling end facing directly downwards.

[0018] Based on the above, the negative pressure gripping module includes an adsorption groove installed on the slider of the mobile end, the groove opening of the adsorption groove faces downward, and a first negative pressure channel is provided in the adsorption groove, the first negative pressure channel having a first control valve connected to an external negative pressure source.

[0019] Based on the above, the cigarette distribution roller is provided with an elongated hole with a circular cross-section that extends axially. The outer side of the elongated hole penetrates the surface of the cigarette distribution roller to form a groove. The cross-section of the multi-specification cigarette slot rotating body is a circle that matches the elongated hole. The multi-specification cigarette slot rotating body rotates so that the cigarette slots are aligned with the groove openings. The multi-specification cigarette slot rotating body is provided with a second negative pressure channel. The second negative pressure channel is connected to each cigarette slot. The second negative pressure channel is connected to an external negative pressure source through a second control valve.

[0020] Based on the above, an auxiliary roller tangent to the surface of the smoke-distributing roller is provided on one side of the hopper.

[0021] Based on the above, the space below the smoke separating roller is set as the discharge area.

[0022] Based on the above, the cigarette storage area is provided with several cigarette storage boxes arranged side by side for stacking and placing cigarette filter rods.

[0023] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0024] By incorporating a vision system, manual intervention can be significantly reduced. Workers only need to place the boxes containing cigarette filter rods in the cigarette storage area. The vision system uses recognition technology to obtain the outline of the cigarette filter rods, acquire their specifications, determine the required position of the cigarette filter rods, and then transfer the corresponding cigarette filter rods into the hopper using negative pressure adsorption.

[0025] The matching of the corresponding cigarette separating rollers and the multi-specification cigarette filter slots in the hopper needs to be configured in advance by the staff so that the corresponding specifications of cigarette filter rods can be grabbed and transferred for feeding. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the cigarette filter rod injection device based on the vision system in Embodiment 1 of this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of the cigarette filter rod feeding device based on the vision system in Embodiment 1 of this utility model, excluding the hopper.

[0028] Figure 3 This is a cross-sectional view of the inside of the hopper in Embodiment 1 of this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of the cigarette filter rod injection device based on the vision system in Embodiment 2 of this utility model.

[0030] Figure 5 This is a cross-sectional view of the cigarette filter rod injection device based on a vision system in Embodiment 2 of this utility model.

[0031] In the diagram: 1. Hopper; 2. Cigarette separating roller; 3. Multi-specification cigarette holder rotating body; 4. Image acquisition module; 5. Negative pressure gripping module; 6. Multi-level track; 7. Controller; 8. Cigarette storage area; 9. Cigarette storage box; 10. Cigarette filter rod; 11. Negative pressure source; 12. Auxiliary roller; 13. Support; 14. Track; 15. Cigarette filter rod acquisition module; 21. Elongated hole; 22. Groove opening; 31. Cigarette holder; 51. Adsorption long groove; 52. Connection port; 61. Longitudinal linear track; 62. Vertical lifting track; 63. Transverse linear track. Detailed Implementation

[0032] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0033] Example 1

[0034] like Figures 1-3 As shown, a cigarette filter rod feeding device based on a vision system includes a hopper 1, a cigarette separating roller 2, a multi-specification cigarette slot rotating body 3, an image acquisition module 4, a negative pressure gripping module 5, a multi-level track 6, a controller 7, and a cigarette storage area 8.

[0035] Specifically, in this embodiment, the multi-level track 6 includes a three-level track consisting of a longitudinal straight track 61, a vertical lifting track 62, and a transverse straight track 63. The image acquisition module 4 and the negative pressure gripping module 5 are both installed on the moving end slider 64 of the transverse straight track 63.

[0036] The image acquisition module 4 is installed on the moving end of the multi-level track 6 and is used to scan the cigarette storage area 8. A row of cigarette storage boxes 9 containing cigarette filter rods to be tested are placed in the cigarette storage area 8. Cigarette filter rods 10 are stacked in the cigarette storage boxes 9. The image acquisition module 4 is used to obtain the size and specifications of the cigarette filter rods 10.

[0037] In this embodiment, the image acquisition module 4 includes an industrial camera mounted on the slider of the mobile end with the sampling end facing directly downwards. The built-in program is visual recognition software, which can identify the shape parameters of cigarette sticks after training. This technology has been widely used in the field, so it will not be described in detail.

[0038] The negative pressure gripping module 5 is installed on the moving end of the multi-level track 6. In this embodiment, the negative pressure gripping module 5 includes an adsorption groove 51 installed on the slider of the moving end. The groove opening of the adsorption groove 51 faces downward. A first negative pressure channel is provided in the adsorption groove to connect the adsorption groove. The first negative pressure channel is connected to an external negative pressure source 11 through a connection port 52 and a first control valve. It is used to transfer between the smoke storage area 8 and the hopper 1 and to adsorb a single cigarette filter rod 10 by negative pressure.

[0039] The hopper 1 is located on one side of the multi-stage track 6 and is used to receive cigarette filter rods 10.

[0040] In this embodiment, the multi-specification cigarette slot rotating body 3 is provided with a number of cigarette slots 31 of different specifications in the circumference. The multi-specification cigarette slot rotating body 3 is rotatably installed in the cigarette distribution roller 2 to form cigarette slots 31 with adjustable specifications.

[0041] The cigarette-distributing roller 2 is provided with an elongated hole 21 with a circular cross-section extending axially. The outer side of the elongated hole 21 penetrates the surface of the cigarette-distributing roller to form a groove 22. The cross-section of the multi-specification cigarette slot rotating body 3 is a circle that matches the elongated hole 21. The multi-specification cigarette slot rotating body 3 rotates so that the cigarette slot 31 is aligned with the groove opening. A second negative pressure channel is provided inside the multi-specification cigarette slot rotating body 3. The second negative pressure channel is connected to each cigarette slot 31. The second negative pressure channel is connected to an external negative pressure source 11 through a second control valve.

[0042] The cigarette separating roller 2 is located below the hopper 1 and is used to rotate and transfer the obtained cigarette filter rod 10 to the next station; in this embodiment, the space below the cigarette separating roller 2 is set as the discharge area.

[0043] The controller 7 controls the drive components connected to the image acquisition module 4, the negative pressure gripping module 5, the multi-level track 6, and the tobacco separating roller 2.

[0044] In a preferred embodiment, an auxiliary roller 12 tangent to the surface of the smoke separating roller 2 is provided on one side of the hopper 1.

[0045] Working principle explanation:

[0046] First, according to the current work task, the staff adjusts the state of the multi-specification cigarette slot rotating body 3 in the cigarette distribution roller 2 so that the matching cigarette slot 31 rotates to the outward direction and connects with the slot opening 22 to form a cigarette slot based on the cigarette distribution roller 2.

[0047] All cigarette filter rods 10 to be tested that day were stored in cigarette storage box 9 for testing.

[0048] The multi-track system first controls the image acquisition module 4 to scan the cigarette storage area 8, obtain the cigarette specifications in each cigarette storage box 9, determine the cigarette filter rod that matches the current cigarette slot 31, and then adjust the multi-track system to move the negative pressure gripping module 5 to the corresponding cigarette storage box 9. The module then grips a cigarette filter rod 10 through the adsorption slot 51, moves it through the multi-track system, transfers it to the top of the hopper, and after the negative pressure is unloaded, the cigarette filter rod 10 falls into the hopper.

[0049] The cigarette distribution roller 2 below the hopper rotates at a constant speed. When the slot 22 rotates to the hopper, a cigarette filter rod 10 enters the cigarette slot 31 and is stabilized by negative pressure. After being transferred to the bottom, the negative pressure is controlled to disappear, and the cigarette filter rod 10 falls into the next station.

[0050] The timing of grabbing the cigarette filter rod and transferring the cigarette filter rod by the cigarette separating roller 2 can be inconsistent. In this state, the auxiliary roller 12 in the hopper takes effect, pushing aside the excess cigarette filter rod to prevent the excess cigarette filter rod 10 from being crushed as it is transferred with the cigarette slot 31.

[0051] Example 2

[0052] like Figure 4 and Figure 5 As shown, a cigarette filter rod feeding device based on a vision system includes a support 13, a hopper 1, a track 14, an image acquisition module 4, and a cigarette filter rod acquisition module 15.

[0053] The hopper 1 has a structure with multiple hopper cavities 11 arranged horizontally in parallel. Each hopper cavity 11 is a structure that gradually narrows from top to bottom, and the bottom is a channel for only a single cigarette filter rod to pass through. The front end of the hopper cavity 11 is made of transparent material. The hopper 1 is fixed to the bracket 13 as a whole.

[0054] The image acquisition module 4 is fixed to the bracket 13. The image acquisition module 4 is located on the front side of the hopper 1 and is set towards the transparent material hopper cavity 11 to obtain the shape parameters of the cigarette filter rod in the hopper cavity 11.

[0055] The track 14 is installed on the bracket 13 below the hopper 1 and is set along the length of the hopper 13;

[0056] The cigarette filter rod receiving module 15 includes a tray 151, a baffle 152, and an arc groove 153 disposed on the tray. The tray 151 is mounted on the slider of the track 14. The upper end face of the tray 151 is in contact with the lower end face of the hopper 1. The baffle 152 is used to cover the arc groove 153. The baffle 152 is driven by an independent drive mechanism to horizontally open the arc groove 153.

[0057] In this embodiment, the driving mechanism of the baffle 151 is a linear slide with the same moving direction as the track 14. The linear slide drives the baffle to open or block the arc groove 153 horizontally.

[0058] In other embodiments, the drive mechanism of the baffle 151 is perpendicular to the moving direction of the track 14.

[0059] Working principle explanation:

[0060] First, the image acquisition module 4 scans the shape parameters of the cigarette filter rods 10 in each hopper cavity 11 to obtain the required location of the cigarette filter rods 10.

[0061] Then, control the pallet 151 to move as a whole with the track 14, so that the arc groove 153 moves to the outlet below the corresponding hopper cavity 11. Then control the baffle 152 to open the arc groove 153, so that a cigarette enters the arc groove 153 below. Then close the baffle 152, move the entire pallet 151 to move back to its original position, and obtain the target cigarette filter rod.

[0062] It can then be transferred to the next process via a pushing mechanism or a gripping mechanism.

[0063] Since the arc groove 153 in this process only needs to support the cigarette filter rod, there is no need to specially adapt the outline size of the arc groove 153, and it can be designed as a universal size.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A cigarette filter rod sample feeding device based on a vision system, characterized in that: It includes a hopper, a cigarette distribution roller, a multi-specification cigarette slot rotating body, an image acquisition module, a negative pressure gripping module, a multi-level track, a controller, and a cigarette storage area; The image acquisition module is installed on the moving end of the multi-level track and is used to scan the cigarette storage area to obtain the size and specifications of the cigarette filter rod. The negative pressure gripping module is installed on the moving end of the multi-level track and is used to transfer between the cigarette storage area and the hopper, adsorbing a single cigarette filter rod through negative pressure. The hopper is located on one side of the multi-stage track and is used to receive cigarette filter rods; The cigarette separating roller is located below the hopper and is used to rotate and transfer the obtained cigarette filter rods to the next work station. The multi-specification cigarette slot rotating body is circumferentially provided with several cigarette slots of different specifications, and the multi-specification cigarette slot rotating body is rotatably installed in the cigarette distribution roller to form cigarette slots with adjustable specifications. The controller controls the drive components connected to the image acquisition module, negative pressure gripping module, multi-level track, and smoke distribution roller.

2. The cigarette filter rod injection device based on a vision system according to claim 1, characterized in that: The multi-level track consists of a three-level track composed of a longitudinal straight track, a vertical lifting track, and a transverse straight track. The image acquisition module and the negative pressure gripping module are both installed on the sliding block at the moving end of the transverse straight track.

3. The cigarette filter rod injection device based on a vision system according to claim 2, characterized in that: The image acquisition module includes an industrial camera mounted on a slider on the mobile end with its sampling end facing directly downwards.

4. The cigarette filter rod feeding device based on a vision system according to claim 2 or 3, characterized in that: The negative pressure gripping module includes an adsorption groove mounted on a slider on a mobile end. The opening of the adsorption groove faces downward. A first negative pressure channel is provided in the adsorption groove, and the first negative pressure channel is connected to an external negative pressure source through a first control valve.

5. The cigarette filter rod injection device based on a vision system according to claim 4, characterized in that: The cigarette-distributing roller is provided with an elongated hole with a circular cross-section that extends axially. The outer side of the elongated hole penetrates the surface of the cigarette-distributing roller to form a groove. The cross-section of the multi-specification cigarette slot rotating body is a circle that matches the elongated hole. The multi-specification cigarette slot rotating body rotates so that the cigarette slots are aligned with the groove openings. The multi-specification cigarette slot rotating body is provided with a second negative pressure channel. The second negative pressure channel is connected to each cigarette slot. The second negative pressure channel is connected to an external negative pressure source through a second control valve.

6. The cigarette filter rod injection device based on a vision system according to claim 5, characterized in that: An auxiliary roller tangent to the surface of the smoke-distributing roller is provided on one side of the hopper.

7. The cigarette filter rod injection device based on a vision system according to claim 6, characterized in that: The space below the separating roller is set as the discharge area.

8. The cigarette filter rod injection device based on a vision system according to claim 6 or 7, characterized in that: The cigarette storage area is equipped with several cigarette storage boxes arranged side by side for stacking and placing cigarette filter rods.

9. A cigarette filter rod injection device based on a vision system, characterized in that: Includes a support frame, hopper, track, image acquisition module, and cigarette filter rod acquisition module; The hopper has a structure with multiple hopper cavities arranged horizontally side by side. Each hopper cavity gradually narrows from top to bottom, and the bottom is a channel that allows only a single cigarette filter rod to pass through. The front end of each hopper cavity is made of transparent material. The entire hopper is fixed to a support. The image acquisition module is fixed to the bracket and is located on the front side of the hopper and facing the transparent material of the hopper cavity, so as to obtain the shape parameters of the cigarette filter rod in the hopper cavity. The track is installed on the support below the hopper and is set along the length of the hopper; The cigarette filter rod receiving module includes a tray, a baffle, and an arc groove on the tray. The tray is mounted on a slider of a track. The upper end face of the tray contacts the lower end face of the hopper. The baffle is used to cover the arc groove. The baffle is driven by an independent drive mechanism to horizontally open the arc groove.

10. The cigarette filter rod feeding device based on a vision system according to claim 9, characterized in that: The driving mechanism of the baffle is a linear slide that is the same as or perpendicular to the moving direction of the track. The linear slide drives the baffle to open or block the arc groove horizontally.

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