CN213864480U - Feeding roller for offline appearance quality detection of cigarette circumferential surface - Google Patents

Abstract

The utility model discloses a feed roll for a cigarette periphery off-line appearance quality detects, the surperficial axial of feed roll (12) evenly is provided with a plurality of second circular recess (121). Use the utility model discloses a feeding roller has saved the cigarette of different diameters of test and has needed to change the trouble of the feeding roller (12) that the circular recess of second (121) diameter is different.

Description

Feeding roller for offline appearance quality detection of cigarette circumferential surface

Technical Field

The utility model belongs to the technical field of a cigarette quality testing technique and specifically relates to a feed roll that is used for a cigarette periphery off-line appearance quality to detect.

Background

The cigarette appearance quality refers to the quality of the cigarette paper part, and the unqualified cigarette appearance quality mainly comprises yellow spot cigarettes, punctures, folds, dust clamping and the like, and comprises oil stains on the cigarette paper, other spot defects which are different from the cigarette paper color and are larger than the national standard of the cigarette and the like. In recent years, according to the market complaints received by statistics, in the aspect of cigarette appearance quality defects, main complaint indexes are yellow spot cigarette, puncture, wrinkle, dust inclusion indexes and the like, wherein the quality defects of yellow spots of the cigarettes of the complaint indexes account for about 30 percent of the cigarette appearance quality defects.

In the actual cigarette production process, the probability of appearance quality of yellow spot cigarettes and the like is obviously increased after the finished product cigarettes are stored for 48 hours; in the dry season where the humidity is low in winter, the frequency of the yellow spot smoke is high. Due to the change of the temperature and the humidity of the storage environment and the change of mass transfer driving force of cut tobacco components to the cigarette paper, finished cut tobacco or oil components, or feed liquid, or water and other components contacting the cigarette paper overflow, and the yellow-spot cigarettes are produced. Based on the background analysis, the main link of cigarette yellow spot production is parameter change in the storage process of finished cigarettes and the problem of parameter setting related to the cigarette rolling process. Of course, cigarette cigarettes can also have different change rules in different consumption areas, and the reason for the yellow spot cigarette is that the mass transfer driving force and the mass transfer total amount of finished tobacco components to cigarette paper are changed.

The existing offline detection of the appearance quality defects of cigarettes is carried out according to the 12 th part of the measurement of the physical properties of cigarettes and filter sticks of the national standard GB/T222838.12-2009: and (4) performing cigarette appearance, and qualitatively judging the cigarette appearance quality defects in a visual inspection mode. The qualitative judgment of the appearance quality of the cigarettes by the visual inspection mode takes long time and has large errors, and the phenomena of missing detection and false detection exist to a certain degree. Meanwhile, a quality inspector who works for more than 5 years detects 20 cigarettes (namely a pack of cigarettes) according to the standard, and the average time is 5 min. The capacity of the existing high-speed machine is more than 1 ten thousand per minute, the packaging of the packaging machine is more than 700 packages per minute, and the offline appearance quality detection work and efficiency are seriously lagged under the actual conditions of the existing rolling packaging, so that the offline appearance quality detection work and efficiency are not beneficial to timely feeding back rolling quality information for accurate maintenance. More seriously, the above visual inspection method does not sufficiently extract the quantitative analysis of the cigarette appearance quality, such as the size of macula lutea smoke spot, the puncture size and other basic data.

The existing off-line cigarette quality detection technology is roughly classified into the following types: 1. the manual sampling detection has the advantages that: no device is arranged, and energy consumption is not needed; the disadvantages are that: the efficiency is low, the manual work is easy to cause visual fatigue, the color difference is not sensitive, and the defect index can not be quantized. 2. Artifical material of getting adds microwave device, the advantage is: the device is small and exquisite, the arrangement is concise, and the maintenance is free; the disadvantages are that: the microwave is only sensitive to density change and does not act on color, and the cigarette feeding mode is single intermittent feeding, so that the treatment efficiency is low. 3. Manual material taking and visual detection are carried out, and the feeding mode is single intermittent feeding; the advantages are that: the device is small and exquisite, the arrangement is concise, and the maintenance is free; the disadvantages are that: the feeding mode is single intermittent feeding, and the efficiency is low.

The existing offline cigarette quality detection technology restricts the quantitative analysis of potential influence factors of the cigarette appearance quality defect. With the development of new technologies, especially the development of visual technologies, the application of product appearance quality detection is becoming more and more extensive, and the fact that the visual detection replaces manual detection to bring about the stability and improvement of product quality is not contended. However, the online installation of the visual inspection system is restricted by the production efficiency, the quality of the whole circumference of the cigarette cannot be detected due to the high production speed of the cigarette, the visual inspection system can only detect the local part of the cigarette even if the visual inspection system is installed, and one visual system can only be installed at one position, so that the investment of a production line is large due to the installation of a plurality of positions. Therefore, most of the existing manufacturers adopt a sampling mode based on statistics to perform cigarette manual appearance detection. The manual detection is greatly influenced by subjective factors of people, so that the detection standard is unstable and misjudged.

In order to overcome the defects of the detection mode in the prior art, a set of cigarette offline appearance quality detection device and detection method which can quantify quality defects and detect cigarettes quickly is urgently needed to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cigarette periphery off-line appearance quality detection device, the device arranges in an independent mechanical support case, can conveniently remove. The device can be used for efficiently and accurately detecting the offline appearance quality of cigarettes with various specifications in diameter.

The technical scheme of the utility model as follows:

the utility model discloses a cigarette periphery outward appearance off-line quality detection device, it includes mechanical system, mechanical system includes following part: a hopper 14, a feeding roller 12, a self-rotating roller 3, an upper slideway 11 and a lower slideway 4; the feeding roller 12 is arranged at the lower part of the right side of the hopper 14, an upper slideway 11 is arranged between the feeding roller 12 and the rotation roller 3, the lower slideway 4 is arranged at the downstream of the rotation roller 3, and a plurality of material-dividing turning plates 10 are arranged at the tail end part of the lower slideway 4; a plurality of second circular grooves 121 are uniformly formed in the surface of the feeding roller 12 in the axial direction, and a plurality of first circular grooves 31 are uniformly formed in the surface of the rotating roller 3 in the axial direction.

Preferably, the mechanical system further comprises a reverse drawing roller 13, the outer surface of the reverse drawing roller 13 is rough, and the reverse drawing roller 13 is arranged at the right outer side of the upper part of the feed roller 12 between the feed roller 12 and the hopper 14; the feed roll 12 and the reverse draw roll 13 rotate clockwise.

Preferably, the arc length between the two first circular grooves 31 is not less than the circumference of the Y circumference of the cigarette to be detected, so that the Y360-degree circumference of the cigarette to be detected rotates for at least one circle; the diameter and the number of the second circular concave grooves 121 are matched with the diameter and the number of the first circular concave grooves 31.

Preferably, the right side of the self-rotating roller 3 is provided with a friction roller 32, a V-shaped space is formed between the self-rotating roller 3 and the friction roller 32, the surfaces of the self-rotating roller 3 and the friction roller 32 are matte and rough surfaces, and the self-rotating roller 3 and the friction roller 32 both rotate anticlockwise; the upper run 11 tip end portion is arranged on the surface of the rubbing roller 32; the surfaces of the spinning roller 3 and the friction roller 32 both adopt a surface sand blasting and black matte oxidation treatment process to increase friction force to drive the cigarettes to rotate clockwise at a constant speed, and meanwhile, the surface reflection of the spinning roller 3 and the friction roller 32 is prevented to further influence the photographing quality of the camera 1; the diameter of the self-rotating roller 3 and the friction roller 32 is generally 80mm, the arc length between the two first circular grooves 31 is generally 115mm, and the 360-degree circumferential surface of the cigarette Y to be detected is ensured to rotate for at least one circle. Meanwhile, the rotating speed of the feeding roller 12 is consistent with that of the rotation roller 3 and the friction roller 32, and the rotation and image detection of only one cigarette can be guaranteed within a period of time.

Preferably, a cigarette Y receiving box is arranged at the lower part of each distribution flap 10 of the plurality of distribution flaps 10.

Preferably, the device further comprises a vision system and a control system, wherein the vision part comprises a camera 1 and a light source 2, the camera 1 is arranged at the upper part of the V-shaped space between the self-rotating roller 3 and the friction roller 32, and the light source 2 is arranged at the periphery of the camera 1; the control section includes a controller 15; the controller 15 controls the mechanical system and the vision system; the mechanical, vision and control systems are arranged within a mechanical carriage box 17; the outer wall of the mechanical support box is provided with a switch 16.

Preferably, the surface of the reverse drawing roller 13 is provided with axially uniform convex lines 131, and the interval between the two convex lines is less than 2 mm. At present, the diameter of the finest cigarette is also larger than 2mm, the counter-pulling roller 13 rotates clockwise, the convex line plays a friction role to loosen the cigarette, the cigarette is prevented from being extruded and blocked, and the requirement of uniform feeding of the cigarette to be detected is met.

Preferably, the feed roll 12 is axially divided into a plurality of sections, which are arranged at intervals as a fixed roll 12A section and a rotatable roll 12B section, and the rotatable roll 12B can rotate along the central axis of the feed roll 12; the second circular groove 121 on the fixed roller 12A is a fixed circular groove 121A, and the diameter of the fixed circular groove 121A is not less than 7.8 mm; the second circular groove 121 on the rotatable roller 12B is a multi-specification circular groove 121B, the diameter specification of the circular groove of the multi-specification circular groove 121B is various, and the number of the circular grooves of each diameter specification is the same as the number of the fixed circular grooves 121A.

Preferably, the fixed roller 12A and the rotatable roller 12B are two pieces, respectively; the multi-specification circular groove 121B has three specifications, and the diameters of the multi-specification circular groove 121B of the three specifications are slightly larger than: 7.8mm, 6.4mm and 5.5 mm.

The utility model discloses a cigarette periphery outward appearance off-line quality testing's method is disclosed in the second aspect, uses foretell device, and the step is as follows:

rotating the rotatable roller 12B according to the diameter of the cigarette Y to be detected, matching the diameter specification of the multi-specification circular groove 121B to the fixed circular groove 121A, and forming the second circular groove 121 on the surface of the feeding roller 12; placing a certain number of cigarettes Y to be detected in hopper 14; the switch 16 is opened to start the mechanical system, the visual system and the control system, under the action of the counter-pulling roller 13 rotating clockwise, a single cigarette Y in the hopper 14 sequentially enters the second circular groove 121 of the feeding roller 12 rotating clockwise respectively, and the cigarette Y is sent into the V-shaped space between the autorotation roller 3 and the friction roller 32 through the upper slideway 11 respectively; the autorotation roller 3 and the friction roller 32 which rotate anticlockwise enable each cigarette Y to rotate for at least one circle by 360 degrees of circumferential surface, and the cigarette Y is photographed into an image by the upper camera 1 in the rotating process; the photographed cigarettes Y enter the first circular groove 31 of the rotation roller 3 rotating anticlockwise, and are conveyed to the plurality of material separating turning plates 10 at the tail end of the lower slide way 4 through the lower slide way 4; meanwhile, the image photographed by the camera 1 is transmitted to the controller 15 for processing, then different material-dividing turning plates 10 are controlled to turn over according to the processing result, cigarettes of different types fall into different material-receiving boxes respectively, and the purpose of classifying qualified cigarettes, unqualified cigarettes and unqualified cigarettes of different types is achieved.

The utility model has the advantages that:

1. the utility model discloses a cigarette periphery off-line appearance quality detection device is to a cigarette no mechanical damage, utilizes a cigarette natural gravity effect, and a cigarette rolls by oneself, and the circular recess on feed roller and the rotation roller evenly arranges, and acquires automatically and remove single cigarette, feed roller and from the commentaries on classics roller, go up the slide and link up with the lower slide, and the rotatory cigarette is held in the palm in the V type space between rotation roller 3 and the friction roller 32 lightly, lets the visual system on upper portion carry out 360 detections of circumference to the whole periphery of a cigarette paper.

2. The utility model discloses a cigarette periphery off-line appearance quality detection device has realized that the single continuous, short-term, even spaced transport of cigarette and detection have realized 360 degrees detections of circumference to a cigarette paper periphery part. The device of the utility model has the functions of classifying and rejecting unqualified cigarettes (such as yellow spots, punctures, wrinkles and dust clamping) and classifying and collecting, and can carry out manual sampling inspection and rechecking on unqualified cigarettes of different types; the quantitative statistical data of the defective cigarettes can be derived, and classified statistical data are provided for cigarette defect analysis. Use the utility model discloses a device carries out a cigarette periphery outward appearance off-line quality testing, and the testing result does not have the omission, and the treatment effeciency is high, and the testing result is accurate and can quantify.

3. The utility model discloses a circular recess of feed roll can adapt to the feeding detection requirement of different diameter types cigarette. When the diameter of the circular groove of the feeding roller is larger and the diameter of the cigarette to be detected is smaller, the cigarette slips and is difficult to convey; when the diameter of the circular groove is smaller and the diameter of the cigarette to be measured is larger, the cigarette can not be conveyed. Therefore, the circular groove of the feeding roller must be matched with the diameter of the cigarettes to smoothly convey the cigarettes, so that the feeding roller needs to be replaced frequently. The utility model discloses a 12 axial designs of feed roll divide into a plurality of sections, the interval sets up to fixed roll 12A section and rotatable roll 12B section, rotatable roll 12B section surface axial evenly is provided with the different many specifications circular recess 121B of diameter, rotatable roll 12B section can be followed the center pin of feed roll 12 and rotated, the diameter specification that will many specifications circular recess 121B matches fixed circular recess 121A on, make the required second circular recess 121 of feed roll 12 surface formation diameter, satisfy the feeding detection requirement of the different cigarette of diameter. The trouble that the feeding roller 12 with the different diameters of the second circular groove 121 needs to be replaced when cigarettes with different diameters are tested is eliminated.

4. The device of the utility model is provided with a reverse stirring roller 13 on the right outer side of the upper part of the feed roller 12. The outer surface of the reverse drawing roller 13 is rough and is generally designed to be axially uniform convex lines 131, and the interval between the two convex lines is far smaller than the diameter of the finest cigarette to be detected, for example, the interval between the two convex lines is smaller than 2 mm. There are three types of cigarettes that are common at present: the diameter of a normal cigarette is about 7.8mm, the diameter of a medium cigarette is about 6.4mm, and the diameter of a fine cigarette is about 5.5 mm. The feeding roller 12 and the reverse drawing roller 13 rotate clockwise, and the reverse drawing roller 13 rotates clockwise to loosen cigarettes, so that the cigarettes are prevented from being extruded and blocked, and the condition that the cigarettes to be detected smoothly and uniformly enter the second circular groove 121 of the feeding roller 12 is met.

5. The utility model discloses a cigarette periphery off-line appearance quality detection device stable performance is reliable, and small occupation of land is few, portable.

Drawings

Fig. 1 is a schematic plan structure view of the cigarette circumferential surface off-line appearance quality detection device of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the cigarette circumferential surface off-line appearance quality detection device of the present invention.

Fig. 3 is the schematic view of the position relationship and appearance between the reverse drawing roller and the feeding roller of the present invention.

Fig. 4 is an appearance schematic diagram of the feeding roller of the present invention.

The reference signs are: 1. a camera; 2. a light source; 3. self-rotating rollers; 31. a first circular groove; 32. a rubbing roller; 4. a lower slideway; 5. a yellow cigarette receiving box; 6. puncturing the cigarette receiving box; 7. folding cigarette receiving boxes; 8. a crushed tobacco collecting box; 9. qualified cigarette receiving boxes; x, mixing defective cigarette receiving boxes; 10. the material distribution turning plates (6); 11. an upper slideway; 12. a feed roll; 12A, a fixed roller; 12B, a rotatable roller; 121. a second circular groove; 121A, fixing a circular groove; 121B, a multi-specification circular groove; 13. reversely pulling the roller; 131. convex lines; 14. a hopper; 15. a controller; 16. a switch; 17. a mechanical support box; y, cigarette.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, the front view of the cigarette circumferential surface off-line appearance quality detection device of the present invention includes a mechanical system, a vision system and a control system. The mechanical system comprises the following components: a hopper 14, a feeding roller 12, a self-rotating roller 3, an upper slideway 11 and a lower slideway 4; the feeding roller 12 is arranged at the lower part of the right side of the hopper 14, an upper slideway 11 is arranged between the feeding roller 12 and the rotation roller 3, the lower slideway 4 is arranged at the downstream of the rotation roller 3, and the tail end part of the lower slideway 4 is provided with a plurality of material-dividing turning plates 10; a plurality of second circular grooves 121 are formed in the axial direction of the feed roller 12, and a plurality of first circular grooves 31 are formed in the axial direction of the spinning roller 3. The mechanical system also comprises a reverse drawing roller 13, the outer surface of the reverse drawing roller 13 is a soft rough surface and is generally designed into axially uniform convex lines 131, the interval between the convex lines is less than 2mm, and the reverse drawing roller 13 is arranged at the right outer side of the upper part of the feeding roller 12 between the feeding roller 12 and the hopper 14. The plurality of second circular grooves 121 are uniformly arranged on the surface of the feed roll 12, and the plurality of first circular grooves 31 are uniformly arranged on the surface of the spinning roll 3; the diameter size and the number of the second circular grooves 121 are matched with the diameter size and the number of the first circular grooves 31. The size and the quantity of the second circular groove 121 and the first circular groove 31 are matched according to the thickness of a cigarette to be detected, each circular groove of the second circular groove 121 and the first circular groove 31 can only contain one cigarette, and the cigarettes are guaranteed to enter and be sent out in a single-cigarette ordered mode. The size of the second circular groove 121 and the first circular groove 31 can be selected to meet the requirements of different thick branches and thin branches. The arc length between the two first circular grooves 31 is not less than the circumference of the cigarette Y to be detected, and the 360-degree circumference of the cigarette Y to be detected is ensured to rotate for at least one circle. The right side of the self-rotating roller 3 is provided with a friction roller 32, a V-shaped space is formed between the self-rotating roller 3 and the friction roller 32 at the upper part, the surfaces of the self-rotating roller 3 and the friction roller 32 are matte rough surfaces, and the self-rotating roller 3 and the friction roller 32 rotate anticlockwise; the tip end portion of the upper run 11 is arranged on the surface of the rubbing roller 32. The surfaces of the spinning roller 3 and the friction roller 32 both adopt a surface sand blasting and black matte oxidation treatment process to increase friction force to drive the cigarettes to rotate clockwise at a constant speed, and meanwhile, the surface reflection of the spinning roller 3 and the friction roller 32 is prevented to further influence the photographing quality of the camera 1; the diameter of the self-rotating roller 3 and the friction roller 32 is generally 80mm, and the arc length between the first circular grooves 31 is 115mm, so that the 360-degree circumferential surface of the cigarette Y to be detected rotates for at least one circle. The tip end portion of the upper run 11 is arranged on the surface of the rubbing roller 32. A single cigarette Y rolls into a V-shaped space between the self-rotating roller 3 and the friction roller 32 through the upper slide way 11 to be supported, and the cigarette Y is in tangential contact with the surface of the self-rotating roller 3; the rotating speed of the feeding roller 12 is matched with the rotating speeds of the autorotation roller 3 and the friction roller 32 consistently, and the fact that only a single cigarette rotates in the V-shaped space and image detection is guaranteed within a period of time. The lower part of each material-separating turning plate 10 of the material-separating turning plates 10 is provided with a cigarette Y material-receiving box for collecting qualified and unqualified cigarettes of different types. The number of the material separating turning plate and the cigarette receiving boxes is set according to the requirement. The material distribution turning plate 10 comprises six corresponding cigarette Y receiving boxes, namely a yellow spot cigarette receiving box 5, a punctured cigarette receiving box 6, a wrinkled cigarette receiving box 7, a powder clamping cigarette receiving box 8, a qualified cigarette receiving box 9 and a mixed defect receiving box X in sequence; wherein the yellow spot cigarette receiving box 5, the punctured cigarette receiving box 6, the wrinkled cigarette receiving box 7, the powder cigarette receiving box 8 and the mixed defect receiving box X are unqualified cigarette receiving boxes.

As shown in figure 3, the feeding roller 12 and the reverse drawing roller 13 both rotate clockwise, and the reverse drawing roller 13 rotates clockwise to loosen cigarettes in the hopper 14, so as to prevent the cigarettes from being extruded and blocked, and enable the cigarettes Y to smoothly enter the second circular groove 121 of the feeding roller 12.

As shown in figure 1, the device of the embodiment further comprises a vision system and a control system, wherein the vision part comprises a camera 1 and a light source 2, the camera 1 and the light source 2 are arranged at the upper part of the V-shaped space between the rotating roller 3 and the friction roller 32, and the camera can shoot and obtain an image of a 360-degree circumferential surface of a single cigarette Y. The control section includes a controller 15; the controller 15 controls the mechanical system and the visual system. As shown in fig. 2, the mechanical system, vision system and control system are arranged within a mechanical carriage box 17; the outer wall of the mechanical support box is provided with a switch 16.

As shown in fig. 4, the present embodiment is designed such that the feed roll 12 is axially divided into four sections, which are provided at intervals as a fixed roll 12A section and a rotatable roll 12B section, the rotatable roll 12B being rotatable along the central axis of the feed roll 12; the second circular groove 121 on the fixed roller 12A is a fixed circular groove 121A, and the diameter of the fixed circular groove 121A is not less than 7.8 mm; the second circular groove 121 on the rotatable roller 12B is a multi-specification circular groove 121B, the diameter specification of the circular groove of the multi-specification circular groove 121B is various, and the number of the circular grooves of each specification is the same as the number of the fixed circular grooves 121A. The multi-gauge circular groove 121B of the present embodiment has three gauges, and the diameters of the multi-gauge circular groove 121B of the three gauges are slightly larger than: 7.8mm, 6.4mm and 5.5 mm.

The method for off-line quality detection of the appearance of the circumference surface of the cigarette by using the device comprises the following steps: rotating the rotatable roller 12B according to the diameter of the cigarette Y to be detected, matching the diameter specification of the multi-specification circular groove 121B to the fixed circular groove 121A, and forming the second circular groove 121 on the surface of the feeding roller 12; placing a certain number of cigarettes Y to be detected in hopper 14; the switch 16 is opened to start the mechanical system, the visual system and the control system, under the action of the counter-pulling roller 13 rotating clockwise, a single cigarette Y in the hopper 14 sequentially enters the second circular groove 121 of the feeding roller 12 rotating clockwise respectively, and the cigarette Y is sent into the V-shaped space between the autorotation roller 3 and the friction roller 32 through the upper slideway 11 respectively; the rotating roller 3 and the friction roller 32 which rotate anticlockwise enable the 360-degree circumferential surface of each cigarette Y to rotate for at least one circle, and the cigarette Y is photographed into an image by the upper camera 1 in the rotating process; the photographed cigarettes Y enter the first circular groove 31 of the rotation roller 3 rotating anticlockwise, and are conveyed to the plurality of material separating turning plates 10 at the tail end of the lower slide way 4 through the lower slide way 4; meanwhile, the image photographed by the camera 1 is transmitted to the controller 15 for processing, then different material-dividing turning plates 10 are controlled to turn over according to the processing result, cigarettes of different types fall into different material-receiving boxes respectively, and the purpose of classifying qualified cigarettes, unqualified cigarettes and unqualified cigarettes of different types is achieved.

After the detection of a batch of cigarettes Y in the hopper 14 is completed, the switch 16 is pressed to close the mechanical system, the visual system and the control system, and the detection is stopped.

It should be noted that, the definitions of "left", "right", "clockwise rotation" and "counterclockwise rotation" in this document are that the observer faces the direction shown in fig. 1, and this definition is for convenience of description and for clear and complete description of the present invention. The "left", "right", "clockwise rotation" and "counterclockwise rotation" etc. of the observer viewed from other directions in fig. 1 are not contradictory to the above-mentioned definition of the present invention.

Example 1

The device of this embodiment detects a detection speed 20/minute that a cigarette appearance quality, and the cigarette sample that awaits measuring is 24.2 mm's cigarette for the circumference, and a cigarette diameter is 7.8 mm. Each defect type cigarette is designed to be 5 cigarettes, and the cigarettes are sequentially mixed into the other 15 qualified cigarettes to form 4 groups of 20 cigarettes to be detected. The defect detection results were as follows:

cigarette with yellow spots: the accuracy is 100%, and the detection of a single cigarette takes 10.35ms on average.

Puncturing the cigarettes: the accuracy is 95%, the average time for detecting single cigarette is 10.4ms, the false detection caused by uneven thickness of cigarette paper is judged to be normal by manual detection; the false detection is to puncture 1 cigarette.

Folding the cigarettes: the accuracy is 100%, and the detection of a single cigarette takes 10.7ms on average.

Clamping the powder cigarette: the accuracy is 100%, and the detection of a single cigarette takes 10.65ms on average.

Example 2

The detection speed of the device of this embodiment for detecting cigarette appearance quality is also 20/min, and the cigarette sample to be detected is a cigarette with a circumference of 20.0mm, namely a diameter of 6.4 mm. Each defect type cigarette is designed to be 5 cigarettes, and the cigarettes are sequentially mixed into the other 15 qualified cigarettes to form 4 groups of 20 cigarettes to be detected. The defect detection results were as follows:

macula lutea: the accuracy is 100%, and the detection of a single cigarette takes 10.35ms on average.

Puncturing: the accuracy is 100%, and the detection of a single cigarette takes 10.4ms on average.

And (3) wrinkling: the accuracy is 100%, and the detection of a single cigarette takes 10.7ms on average.

Foam clamping: the accuracy is 100%, and the detection of a single cigarette takes 10.45ms on average.

Example 3

The detection speed of the device of this embodiment for detecting cigarette appearance quality is also 20/min, and the cigarette sample to be detected is a cigarette with a circumference of 17.0mm, namely a diameter of 5.5 mm. Each defect type cigarette is designed to be 5 cigarettes, and the cigarettes are sequentially mixed into the other 15 qualified cigarettes to form 4 groups of 20 cigarettes to be detected. The defect detection results were as follows:

macula lutea: the accuracy is 100%, and the detection of a single cigarette takes 10.25ms on average.

Puncturing: the accuracy is 100%, and the detection of a single cigarette takes 10.3ms on average.

And (3) wrinkling: the accuracy is 100%, and the detection of a single cigarette takes 10.6ms on average.

Foam clamping: the accuracy is 100%, and the detection of a single cigarette takes 10.25ms on average.

According to the above embodiment, use the utility model discloses a device detects a cigarette periphery off-line appearance quality, detects and does not have the omission, and the treatment effeciency is high, and the result is accurate and quantifiable.

Additionally, the utility model discloses a cigarette defect recognition software core system that the control system of device used has adopted the detection algorithm based on degree of depth study, specifically includes: identifying yellow spots and the dust cigarette by adopting a feature extraction algorithm based on an HSV color space; identifying the punctured cigarettes by adopting a Blob analysis algorithm; the folded cigarettes are identified by a gray level co-occurrence matrix characteristic extraction algorithm. Inputting the extracted features into Boosting for supervised training to obtain a classifier model, thereby realizing detection, classification and identification of defective cigarettes and realizing multi-channel classification and rejection and data classification statistical output by controlling mechanical and electrical actions through system software. Through big data accumulation, deep learning training, its discernment rate of accuracy can be constantly improved along with the increase of data bulk.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (2)

1. A feeding roller for offline appearance quality detection of cigarette circumferential surfaces is characterized in that a plurality of second circular grooves (121) are axially and uniformly formed in the surface of the feeding roller (12); the feed roll (12) is axially divided into a plurality of sections which are arranged at intervals as a fixed roll (12A) section and a rotatable roll (12B) section, and the rotatable roll (12B) can rotate along the central shaft of the feed roll (12); the second circular groove (121) on the fixed roller (12A) is a fixed circular groove (121A), and the diameter of the fixed circular groove (121A) is not less than 7.8 mm; the second circular groove (121) on the rotatable roller (12B) is a multi-specification circular groove (121B), the diameter specification of the circular groove of the multi-specification circular groove (121B) is various, and the number of the circular grooves of each diameter specification is the same as that of the fixed circular grooves (121A).

2. The feed roller for the offline appearance quality detection of the circumferential surface of cigarettes according to claim 1, wherein the fixed roller (12A) and the rotatable roller (12B) are respectively provided with two sections; the multi-specification circular groove (121B) has three specifications, and the diameters of the multi-specification circular groove (121B) of the three specifications are respectively slightly larger than: 7.8mm, 6.4mm and 5.5 mm.

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