A monitoring system for atomization effect of tobacco feeder

Abstract

The present application discloses a tobacco feeder atomization effect monitoring system, comprising: a tobacco feeder and a visual monitoring unit; the tobacco feeder comprises a frame and a drum arranged on the frame; a spray rod is arranged in the drum; a nozzle for spraying flavor and steam into the drum is provided on the spray rod; a spray angle monitoring unit for monitoring the spray angle at the nozzle and a spray distance monitoring unit for monitoring the spray distance are arranged on the drum wall of the drum; the spray angle monitoring unit and the spray distance monitoring unit are both electrically connected to the visual monitoring unit. The present invention can effectively and accurately monitor the atomization effect of the feed liquid in real time during the tobacco feed process.

Description

Technical Field

[0001] The present application relates to the technical field of automated control of tobacco production, and in particular to a monitoring system for the atomization effect of a tobacco feeder. Background Art

[0002] The feeding process is a key process in the cigarette making process. The tobacco leaves or tobacco shreds are evenly loosened by the rotation of the feeding cylinder, and the spices are evenly sprayed on the surface of the tobacco leaves or tobacco shreds after being atomized by steam or compressed air through the atomizing nozzle, thereby realizing the watering and feeding process of this link. Since the working area of ​​the nozzle is generally in a basically closed feeding cylinder type equipment, the injection angle and injection distance of the induced steam cannot be directly viewed, and people cannot enter the cylinder for inspection. Therefore, even if the nozzle atomization is not good or there are drops of liquid falling, it cannot be observed and eliminated. The atomization effect of the liquid sprayed on the leaves is difficult to determine, and there are no qualitative or quantitative standards for the atomization effect and atomization angle, and the quality cannot be effectively verified. For this reason, the present invention proposes a tobacco feeder atomization effect monitoring system. Summary of the invention

[0003] The embodiment of the present application provides a system for monitoring the atomization effect of a tobacco feeder, which enables effective and accurate real-time monitoring of the atomization effect of a feed liquid during the tobacco feeding process.

[0004] In view of this, the present application provides a tobacco feeder atomization effect monitoring system, comprising: a tobacco feeder and a visual monitoring unit;

[0005] The tobacco feeder comprises a frame and a roller arranged on the frame;

[0006] A spray bar is arranged inside the drum;

[0007] The spray bar is provided with a nozzle for spraying fragrance and steam into the drum;

[0008] The drum wall is provided with a spray angle monitoring unit for monitoring the spray angle of the spray at the nozzle and a spray distance monitoring unit for monitoring the spray distance of the spray;

[0009] The spray angle monitoring unit and the spray distance monitoring unit are both electrically connected to the visual monitoring unit.

[0010] Optionally, the spray distance monitoring unit comprises a first electric control box arranged outside the drum wall of the drum;

[0011] The first electric control box is provided with a light source and a first industrial camera;

[0012] The cylinder wall of the drum is provided with through holes corresponding to the positions of the light source and the first industrial camera;

[0013] Glass is installed at the through hole.

[0014] Optionally, an outer frame is fixed to the inner side of the cylinder wall of the drum;

[0015] The outer frame is located at the through hole;

[0016] The glass is embedded in the outer frame and fixed to the outer frame through a pressing plate;

[0017] A first sealing gasket is provided between the pressing plate and the outer frame;

[0018] A second sealing gasket is arranged between the outer frame and the cylinder wall of the drum.

[0019] Optionally, a wind knife for blowing away tobacco leaves and a wind guide plate for guiding the wind blown by the wind knife toward the glass are provided above the glass;

[0020] The wind knife is fixed to the pressure plate through a connecting plate;

[0021] The wind guide plate is fixed on the wind knife.

[0022] Optionally, a baffle is provided above the air guide plate;

[0023] The lower end of the air guide plate is provided with an outwardly bent edge.

[0024] Optionally, the light source is fixed in the first electric control box via a first connection angle bracket;

[0025] The first industrial camera is fixed in the first electric control box through a fixing frame.

[0026] Optionally, the fixing frame includes a cross optical axis fixing clamp, a diamond optical axis supporting seat, a first optical axis, a second optical axis, a vertical optical axis supporting seat and a second connecting angle code;

[0027] The first industrial camera is fixedly connected to the second connection angle code;

[0028] The second connection angle code is fixedly connected to the vertical optical axis support seat;

[0029] One end of the second optical axis is slidably connected to the vertical optical axis support seat, and the other end is slidably connected to the cross optical axis fixing clamp;

[0030] The cross optical axis fixing clamp is slidably connected to the first optical axis;

[0031] The first optical axis is fixed in the first electric control box through the diamond-shaped optical axis support seat.

[0032] Optionally, the spray angle monitoring unit includes a second electrical control box;

[0033] The second electric control box is provided with a second industrial camera and a fiber optic endoscope;

[0034] The fiber optic endoscope is fixed in the second electric control box by a pipeline clamp;

[0035] The second industrial camera is fixed at the eyepiece of the fiber optic endoscope, and the optical fiber of the fiber optic endoscope extends into the drum and extends along the spray rod to the nozzle.

[0036] Optionally, it also includes: a central control system;

[0037] The visual monitoring unit is communicatively connected with the central control system.

[0038] Optionally, the visual monitoring unit is a host computer.

[0039] It can be seen from the above technical scheme that the embodiments of the present application have the following advantages: the atomization effect monitoring system of the tobacco feeder includes a tobacco feeder and a visual monitoring unit, the tobacco feeder includes a frame and a drum arranged on the frame, a spray rod is arranged in the drum, and a nozzle for spraying flavors and steam into the drum is opened on the spray rod; a spray angle monitoring unit and a spray distance monitoring unit are arranged on the drum wall, and the spray angle monitoring unit and the spray distance monitoring unit are both electrically connected to the visual monitoring unit. The spray distance monitoring unit and the spray angle monitoring unit can be used to monitor the spray spray distance and the spray spray angle at the nozzle in real time, and the monitoring results can be transmitted to the visual monitoring unit. The visual monitoring unit can be used to view and monitor the spray effect, determine whether the current nozzle spray radiation angle can cover all tobacco leaves, and monitor the induced steam radiation angle and spray distance in real time, thereby realizing effective and accurate real-time monitoring of the atomization effect of the feed liquid during the tobacco feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a structural schematic diagram of the atomization effect monitoring system of the tobacco feeder in the embodiment of the present application;

[0041] Figure 2 This is a schematic diagram of the structure of the tobacco feeder in the embodiment of the present application;

[0042] Figure 3 This is a schematic diagram of the internal structure of the drum in the embodiment of the present application;

[0043] Figure 4 This is a schematic diagram of the structure of the spray distance monitoring unit in the embodiment of the present application;

[0044] Figure 5 An exploded view of a spray distance monitoring unit in an embodiment of the present application;

[0045] Figure 6 This is a schematic diagram of the structure of the air guide plate in the embodiment of the present application;

[0046] Figure 7 A side view of the air guide plate in the embodiment of the present application;

[0047] Figure 8 This is a schematic diagram of the internal structure of the first electric control box in the embodiment of the present application;

[0048] Fig. 9 This is a schematic diagram of the structure of the fixing frame in the embodiment of the present application;

[0049] Fig.10 This is a schematic diagram of the structure of the spray angle monitoring unit in the embodiment of the present application;

[0050] Fig.11 This is a working flow chart of the atomization effect monitoring system of the tobacco feeder in the embodiment of the present application;

[0051] Fig.12 This is an algorithm flow chart of the atomization effect monitoring system of the tobacco feeder in the embodiment of the present application;

[0052] Fig.13 This is a polygonal approximation algorithm diagram drawn based on the spray photo in the embodiment of the present application;

[0053] Wherein, the accompanying drawings are marked as follows:

[0054] 1-frame, 2-drum, 3-spray angle monitoring unit, 4-spray distance monitoring unit, 5-spray rod, 6-fiber optic endoscope, 7-first electric control box, 8-baffle, 9-pneumatic joint, 10-wind knife, 11-wind guide plate, 12-pressure plate, 13-outer frame, 14-light source, 15-first industrial camera, 16-connecting plate, 17-first sealing gasket, 18-glass, 19-second sealing gasket, 20-first connecting angle code, 21-cross optical axis fixing clamp, 22-diamond optical axis support seat, 23-first optical axis, 24-second optical axis, 25-vertical optical axis support seat, 26-second connecting angle code, 27-second electric control box, 28-second industrial camera, 29-pipe clamp, 30-folding edge. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] This application provides an embodiment of a tobacco feeder atomization effect monitoring system. Figures 1 to 3 .

[0059] The tobacco feeder atomization effect monitoring system in this embodiment includes: a tobacco feeder and a visual monitoring unit. The tobacco feeder includes a frame 1 and a drum 2 arranged on the frame 1. A spray rod 5 is arranged in the drum 2, and a nozzle for spraying flavors and steam into the drum 2 is opened on the spray rod 5; a spray angle monitoring unit 3 for monitoring the angle of spray spraying at the nozzle and a spray distance monitoring unit 4 for monitoring the distance of spray spraying are arranged on the wall of the drum 2, and the spray angle monitoring unit 3 and the spray distance monitoring unit 4 are both electrically connected to the visual monitoring unit.

[0060] It should be noted that: the spray distance monitoring unit 4 and the spray angle monitoring unit 3 can be used to monitor the spray spray distance and the spray spray angle at the nozzle in real time, and the monitoring results can be transmitted to the visual monitoring unit. The spray effect can be viewed and monitored through the visual monitoring unit, and it can be determined whether the spray radiation angle of the current nozzle can cover all tobacco leaves. The angle and spray distance of the induced steam radiation can be monitored in real time, thereby realizing effective and accurate real-time monitoring of the atomization effect of the liquid during the tobacco feeding process.

[0061] The above is the first embodiment of a tobacco feeder atomization effect monitoring system provided by the embodiment of the present application. The following is the second embodiment of a tobacco feeder atomization effect monitoring system provided by the embodiment of the present application. For details, please refer to Figures 1 to 13 .

[0062] The tobacco feeder atomization effect monitoring system in this embodiment includes: a tobacco feeder and a visual monitoring unit. The tobacco feeder includes a frame 1 and a drum 2 arranged on the frame 1. A spray rod 5 is arranged in the drum 2, and a nozzle for spraying flavors and steam into the drum 2 is opened on the spray rod 5; a spray angle monitoring unit 3 for monitoring the angle of spray spraying at the nozzle and a spray distance monitoring unit 4 for monitoring the distance of spray spraying are arranged on the wall of the drum 2, and the spray angle monitoring unit 3 and the spray distance monitoring unit 4 are both electrically connected to the visual monitoring unit.

[0063] The working process of the tobacco feeder is as follows: the tobacco to be fed is conveyed to the drum 2, and the drum 2 rotates to continuously stir the tobacco. At the same time, the spices and steam are conveyed to the spray rod 5 through the compressor, and are sprayed out through the nozzle on the spray rod 5 and sprayed on the tobacco in the drum 2 to combine the tobacco leaves with the spices.

[0064] like Figure 4 and Figure 5 As shown, the spray distance monitoring unit 4 includes a first electric control box 7 arranged outside the cylinder wall of the drum 2, a light source 14 and a first industrial camera 15 are arranged in the first electric control box 7, a through hole corresponding to the position of the light source 14 and the first industrial camera 15 is opened on the cylinder wall of the drum 2, and a glass 18 is installed at the through hole. Specifically, the glass 18 can be a tempered glass 18.

[0065] An outer frame 13 is fixed to the inner side of the cylinder wall of the drum 2, the outer frame 13 is located at the through hole, the glass 18 is embedded in the outer frame 13 and fixed to the outer frame 13 through the pressing plate 12; a first sealing gasket 17 is arranged between the pressing plate 12 and the outer frame 13, and a second sealing gasket 19 is arranged between the outer frame 13 and the cylinder wall of the drum 2. Specifically, the outer frame 13 is fixed to the cylinder wall of the drum 2 by screws, the glass 18 is installed in the square hole at the center of the outer frame 13, and the pressing plate 12 is connected to the outer frame 13 by screws.

[0066] A wind knife 10 for blowing away tobacco leaves and a wind guide plate 11 for guiding the wind blown by the wind knife 10 toward the glass 18 are arranged above the glass 18. The wind guide plate 11 can blow away tobacco leaves hanging on the glass 18 by guiding the wind blown by the wind knife 10 toward the glass 18. A pneumatic joint 9 is arranged on the wind knife 10. The wind knife 10 is fixed to the pressing plate 12 through a connecting plate 16, and the wind guide plate 11 is fixed to the wind knife 10. Specifically, the wind knife 10 is connected to the connecting plate 16 through screws, the connecting plate 16 is fixed to the pressing plate 12 through screws, and the wind guide plate 11 is fixed to the wind knife 10 through screws.

[0067] A baffle 8 is provided above the air guide plate 11. Figure 6 and Figure 7 As shown, the lower end of the air guide plate 11 is provided with an outwardly bent edge 30 , which can prevent the liquid drops hanging on the outer side of the air guide plate 11 from falling onto the glass 18 .

[0068] like Figure 8 As shown, the light source 14 is fixed in the first electric control box 7 through the first connecting angle code 20. Specifically, the light source 14 is connected to the first connecting angle code 20 through screws, and the first connecting angle code 20 is fixed in the first electric control box 7 through bolts; the first industrial camera 15 is fixed in the first electric control box 7 through a fixing bracket.

[0069] like Fig. 9 As shown, the fixing frame includes a cross optical axis fixing clamp 21, a diamond optical axis support seat 22, a first optical axis 23, a second optical axis 24, a vertical optical axis support seat 25 and a second connecting angle code 26. The first industrial camera 15 is fixedly connected to the second connecting angle code 26 by screws, and the second connecting angle code 26 is fixedly connected to the vertical optical axis support seat 25 by bolts. One end of the second optical axis 24 is slidably connected to the vertical optical axis support seat 25, and the second optical axis 24 can be fixed to the vertical optical axis support seat 25 by a set screw; the other end of the second optical axis 24 One end is slidably connected to the cross optical axis fixing clamp 21, and the second optical axis 24 can be fixed to the cross optical axis fixing clamp 21 by a set screw; the cross optical axis fixing clamp 21 is slidably connected to the first optical axis 23, and the first optical axis 23 can be fixed to the cross optical axis fixing clamp 21 by a set screw; the first optical axis 23 is fixed in the first electric control box 7 through a diamond optical axis support seat 22. Specifically, one end of the first optical axis 23 is fixedly connected to the diamond optical axis support seat 22, and the diamond optical axis support seat 22 is fixed in the first electric control box 7 by screws.

[0070] like Fig.10 As shown, the spray angle monitoring unit 3 includes a second electric control box 27, in which a second industrial camera 28 and a fiber endoscope 6 are arranged, and the fiber endoscope 6 is fixed in the second electric control box 27 by a pipe clamp 29. Specifically, the pipe clamp 29 is welded in the second electric control box 27, and the fiber endoscope 6 is clamped and fixed by the pipe clamp 29; the second industrial camera 28 is fixed at the eyepiece of the fiber endoscope 6, and the optical fiber of the fiber endoscope 6 extends from the second electric control box 27, enters the drum 2, and extends along the spray rod 5 to the nozzle. Specifically, the second industrial camera 28 is fixed by the clamp at the eyepiece of the fiber endoscope 6.

[0071] like Figure 1 As shown, it also includes: a central control system, and the visual monitoring unit is communicated with the central control system to realize remote monitoring, which is easy to use.

[0072] The visual monitoring unit is a host computer. Specifically, the host computer may be an industrial control touch all-in-one machine. The industrial control touch all-in-one machine may be connected to the central control system via the network port IPv4 protocol and remotely controlled via the central control system.

[0073] like Fig.11As shown, the working process of the atomization effect monitoring system of the tobacco feeder is as follows:

[0074] Step 1: The system is powered on, and the industrial cameras (including the first industrial camera 15 and the second industrial camera 28) are turned on to start collecting images inside the drum 2;

[0075] Step 2: The conveyor belt works to transport the tobacco leaves into the drum 2, where the tobacco leaves are spread loosely and evenly. The nozzle works to evenly feed the tobacco leaves.

[0076] Step 3: When the feeding process starts, the second industrial camera 28 records the photo of the radiation angle of the induced steam sprayed from the nozzle in the current field of view. The host computer processes and recognizes the relevant images collected by the second industrial camera 28 to determine whether the current radiation angle of the induced steam can cover all tobacco leaves and monitor the radiation angle of the induced steam in real time;

[0077] Step 4: At the beginning of the feeding process, the first industrial camera 15 obtains the processing conditions in the drum 2, and feeds back the conditions of the induced steam spraying tobacco leaves to the host computer. The staff operates the software to manually mark the induced steam spraying distance, and the host computer obtains the induced steam spraying distance;

[0078] Step 5: Process the images sent back by the industrial camera in real time to determine whether there are leaves hanging near the nozzle or water droplets formed due to insufficient atomization. If so, use an audible and visual alarm to alert the staff.

[0079] like Fig.12 As shown, the algorithm flow of the atomization effect monitoring system of the tobacco feeder is as follows:

[0080] S10, industrial cameras (including the first industrial camera 15 and the second industrial camera 28) monitor the induced steam in real time, and the host computer extracts a frame of image for processing and recognition at a certain frame interval.

[0081] S20, the host computer preprocesses the extracted image, and the image preprocessing includes: first, cropping the image, cropping the image of the area where the induced steam has just been sprayed by the atomizing nozzle; then using a Gaussian filter function to perform noise reduction on the cropped image; finally, binarizing the denoised image, setting the induced steam area to white and the background area to black.

[0082] S30, such as Fig.13As shown, the contour of the induced steam area in the binary processed image is identified, and then the contour of the induced steam area is fitted into a polygon using the polygon approximation method: a straight line AB is connected between the first and last points A and B of the curve, and the straight line is the chord of the curve; the point C on the curve with the largest distance from the straight line AB is obtained, and its distance d from the straight line AB is calculated; the distance is compared with the predetermined threshold value threshold, if it is less than the given threshold value threshold, the straight line segment is used as the approximation of the curve, and the processing of the curve segment is completed. If the distance is greater than the threshold, C is used to divide the curve into two segments (AC and BC), and the two segments are processed in the same way as above; when all curves are processed, the broken lines formed by connecting each segmentation point in sequence can be used as the approximation of the curve; finally, the contour of the induced steam area can be fitted into an ideal polygon.

[0083] S40, draw the image after polygonal approximation and perform straight line fitting processing according to Hough straight line transformation, draw the fitting straight lines of the two hypotenuses of the polygon through the polar coordinate equation of the straight line, and the angle between the straight line and the positive direction of the y-axis can be obtained through the polar coordinate equation of the fitting straight line. The angle between the two straight lines and the positive direction of the y-axis can be obtained according to the angle between the two straight lines, which is the induced steam angle.

[0084] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tobacco feeder atomization effect monitoring system, characterized in that: include: Tobacco feeder and visual monitoring unit; The tobacco feeder comprises a frame and a roller arranged on the frame; A spray bar is arranged in the drum; The spray bar is provided with a nozzle for spraying fragrance and steam into the drum; The drum wall is provided with a spray angle monitoring unit for monitoring the spray angle of the spray at the nozzle and a spray distance monitoring unit for monitoring the spray distance of the spray; The spray angle monitoring unit and the spray distance monitoring unit are both electrically connected to the visual monitoring unit; The spray distance monitoring unit comprises a first electric control box arranged outside the drum wall of the drum; The first electric control box is provided with a light source and a first industrial camera; The cylinder wall of the drum is provided with through holes corresponding to the positions of the light source and the first industrial camera; Glass is installed at the through hole; The glass is tempered glass; An outer frame is fixed on the inner side of the cylinder wall of the drum; The outer frame is located at the through hole; The glass is embedded in the outer frame and fixed to the outer frame through a pressing plate; A first sealing gasket is provided between the pressing plate and the outer frame; A second sealing gasket is provided between the outer frame and the cylinder wall of the drum; A wind knife for blowing away tobacco leaves and a wind guide plate for guiding the wind blown by the wind knife toward the glass are arranged above the glass; The wind knife is fixed to the pressure plate through a connecting plate; The wind guide plate is fixed on the wind knife.

2. The atomization effect monitoring system of the tobacco feeder according to claim 1, characterized in that: A baffle is provided above the air guide plate; The lower end of the air guide plate is provided with an outwardly bent edge.

3. The atomization effect monitoring system of the tobacco feeder according to claim 1, characterized in that: The light source is fixed in the first electric control box through a first connection angle bracket; The first industrial camera is fixed in the first electric control box through a fixing frame.

4. The atomization effect monitoring system of the tobacco feeder according to claim 3, characterized in that: The fixing frame includes a cross optical axis fixing clamp, a diamond optical axis supporting seat, a first optical axis, a second optical axis, a vertical optical axis supporting seat and a second connecting angle code; The first industrial camera is fixedly connected to the second connection angle code; The second connection angle code is fixedly connected to the vertical optical axis support seat; One end of the second optical axis is slidably connected to the vertical optical axis support seat, and the other end is slidably connected to the cross optical axis fixing clamp; The cross optical axis fixing clamp is slidably connected to the first optical axis; The first optical axis is fixed in the first electric control box through the diamond-shaped optical axis support seat.

5. The atomization effect monitoring system of the tobacco feeder according to claim 1, characterized in that: The spray angle monitoring unit includes a second electric control box; The second electric control box is provided with a second industrial camera and a fiber optic endoscope; The fiber optic endoscope is fixed in the second electric control box by a pipeline clamp; The second industrial camera is fixed at the eyepiece of the fiber optic endoscope, and the optical fiber of the fiber optic endoscope extends into the drum and extends along the spray rod to the nozzle.

6. The atomization effect monitoring system of the tobacco feeder according to claim 1, characterized in that: Also includes: Central control system; The visual monitoring unit is communicatively connected with the central control system.

7. The atomization effect monitoring system of the tobacco feeder according to claim 1, characterized in that: The visual monitoring unit is a host computer.

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