Cigar appearance detection device

Abstract

The utility model discloses a cigar appearance detection device. The cigar appearance detection device comprises a roller shaft, a camera device and a clamping assembly, wherein the roller shaft is provided with an arc-shaped groove; the camera device is arranged in the circumferential direction of the roller shaft; the roller shaft is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is provided with a negative pressure hole, the negative pressure hole is connected with a negative pressure source, when the cigar moves to a first position on the roller shaft, the clamping assembly rotates the cigar for a circle at the first position, and the camera device is used for shooting the appearance image of the cigar in the cigar rotating process. According to the utility model, the problem that the image of the cigar can be shot incompletely is solved, the cigar is shot in the rotating process of the cigar, the whole circumferential surface of the cigar can be shot, the complete appearance image of the cigar is further obtained, the appearance of the cigar is detected by using the obtained appearance image, and the detection efficiency is improved. The production efficiency of cigars is improved, and the accuracy of cigarette appearance detection is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco detection, and particularly relates to an appearance detection device for cigars. Background Art

[0002] At present, cigars include hand-rolled cigars, semi-mechanized cigars, machine-made cigars, etc. No matter which type of cigar, it includes three parts: the cigar wrapper, the binder, and the filler. Among them, the appearance quality inspection of the cigar wrapper is an important step in the cigar production process. The texture, color, wrinkles, indentations, tightness, uniformity and other characteristics of the cigar wrapper are manually inspected, and the quality of the cigar wrapper is judged based on the experience of the inspection workers. However, with the expansion of the cigar market and the increasing demand, the number of workers is inevitably insufficient. Especially for semi-mechanized cigars and machine-made cigars, if the inspection is still carried out manually, it will cause the inefficiency mismatch between the production equipment of the cigar wrapper and the manual inspection efficiency, thus affecting the production efficiency of cigars.

[0003] In the utility model patent with the application number CN202122192641.X, an appearance detection device for cigarette sticks is disclosed, which includes a first roller shaft, a second roller shaft, a first image acquisition unit and a second image acquisition unit; grooves are provided on the circumferential surfaces of the first roller shaft and the second roller shaft, and negative pressure air holes are evenly distributed in the grooves, and the negative pressure air holes are connected to a negative pressure source; the rotation directions of the first roller shaft and the second roller shaft are opposite, the first roller shaft is tangent to the second roller shaft at a first position on its circumferential surface, a first baffle is provided at the first position of the first roller shaft, the second position of the circumferential surface of the second roller shaft is directly above the cigarette outlet, and a second baffle is provided at the second position of the second roller shaft; the first image acquisition unit is arranged on the side of the first roller shaft to acquire the first outer contour image of the cigarette stick; the second image acquisition unit is arranged on the side of the second roller shaft to acquire the second outer contour image of the cigarette stick.

[0004] However, when obtaining the outer contour image of the cigarette stick, the device combines the first outer contour image and the second outer contour image to form the entire appearance image of the cigarette stick. Since the first outer contour image and the second outer contour image are obtained by photographing the cigarette stick on two different roller shafts, the cigarette stick is embedded in the groove, and the cigarette stick may rotate during the switching process between the two roller shafts, resulting in a part of the cigarette stick always being in contact with the groove surface during the whole process. There is partial repeated shooting in the first outer contour image and the second outer contour image, and there is partial appearance image of the whole cigarette stick not photographed. Judging with the incomplete appearance image of the cigarette stick will reduce the accuracy of the cigarette stick appearance detection. Content of the Utility Model

[0005] The object of the present utility model is to provide a cigar appearance detection device, which solves the problem that the image of a cigar may not be completely captured. During the rotation of the cigar, the cigar is photographed, and the entire circumferential surface of the cigar will be photographed, so as to obtain a complete appearance image of the cigar. The obtained appearance image is used to detect the appearance of the cigar, which not only improves the production efficiency of cigars, but also improves the accuracy of cigarette appearance detection.

[0006] The technical solution adopted by the present utility model to solve its technical problems is to propose a cigar appearance detection device, which includes a roller shaft provided with an arc groove, a camera device arranged on the circumferential direction of the roller shaft, and a clamping component arranged between the roller shaft and the camera device; negative pressure holes are arranged on the inner wall of the arc groove, and the negative pressure holes are connected to a negative pressure source. When the cigar moves to the first position on the roller shaft, the clamping component rotates the cigar one week at the first position, and the camera device is used to photograph the appearance image of the cigar during the rotation of the cigar.

[0007] In an embodiment of the present application, the detection device further includes a chassis, the roller shaft, the camera device and the clamping component are all installed on the chassis, and the driving devices of the roller shaft and the clamping component are arranged inside the chassis.

[0008] In an embodiment of the present application, the detection device further includes a cigarette inlet and a cigarette outlet arranged on the same side of the chassis in the vertical direction. A guiding member is arranged on the cigarette inlet, and the guiding member is used to guide the cigar to the arc groove.

[0009] In an embodiment of the present application, taking the rotation center of the roller shaft as the vertex, the angle formed between the clamping component and the cigarette inlet is an acute angle.

[0010] In an embodiment of the present application, the guiding member includes a plurality of guiding rods arranged in parallel, and the ends of the plurality of guiding rods are fixedly connected to the inner surface of the cigarette inlet.

[0011] In an embodiment of the present application, a conveyor belt for transporting cigars is arranged below the cigarette outlet.

[0012] In an embodiment of the present application, the detection device further includes a horizontal sliding table, the horizontal sliding table is fixedly connected to the clamping component, the horizontal sliding table drives the clamping component to move, and the clamping component is used to grab or release the cigar at the first position.

[0013] In an embodiment of the present application, the clamping assembly includes a first clamping block arranged on the horizontal slide, and a second clamping block arranged on the chassis; the first clamping block and the second clamping block are respectively abutted against different ends of the cigar, the first clamping block can rotate on the horizontal slide, and the second clamping block can rotate on the chassis, and the first clamping block and the second clamping block rotate synchronously to drive the cigar to rotate one circle at the first position.

[0014] In the embodiment of the present application, one end of the first clamping block and the second clamping block that abuts against the cigar is provided with an integrated limiting edge.

[0015] In the embodiment of the present application, the camera device is a line array camera.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model proposes a cigar appearance inspection device, wherein a camera device is arranged in the circumferential direction of a roller shaft, a clamping assembly is arranged between the camera device and the roller shaft, the clamping assembly drives the cigar to rotate for one circle, and the camera device captures a complete appearance image of the cigar during the rotation of the cigar. The cigar is photographed during the rotation of the cigar, and the entire circumferential surface of the cigar is photographed, thereby obtaining a complete appearance image of the cigar, and the appearance of the cigar is inspected by using the obtained appearance image, thereby improving the production efficiency of the cigar and the accuracy of the appearance inspection of the cigarette;

[0018] 2. The utility model proposes a cigar appearance detection device, and a smoke inlet and a smoke outlet arranged in a vertical direction are also provided on the same side of the chassis, so as to facilitate the connection of the detection device with the front and rear processes;

[0019] 3. The utility model proposes a cigar appearance inspection device, with the rotation center of the roller as the vertex, and the angle formed by the clamping assembly and the smoke inlet is an acute angle, so that when the negative pressure source does not provide negative pressure and the clamping assembly has not yet grasped the cigar, the cigar on the roller can still not fall out of the arc groove under the support force provided by the roller, thereby improving the stability of the cigar;

[0020] 4. The utility model proposes a cigar appearance inspection device, wherein the guide member comprises a plurality of guide rods parallel to each other, and the ends of the plurality of guide rods are fixed to the inner surface of the smoke inlet in an integrally connected manner, so that the cigar can accurately fall into the arc groove, and each cigar can be stably photographed by the camera device to obtain an appearance image, and then the appearance quality of the cigar is inspected, thereby ensuring the production quality of the cigar;

[0021] 5. The cigar appearance detection device proposed by the present utility model has a limiting edge provided at one end of the first clamping block and the second clamping block that can abut against the cigar, which improves the stability of the clamping assembly during grasping and prevents the cigar from slipping between the first clamping block and the second clamping block during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings incorporated herein and constituting a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model. In these drawings, like reference numerals are used to represent like elements. The following drawings in the description are some embodiments of the present utility model, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts and other embodiments can be obtained. Additionally, the terms related to orientation only represent the relative positional relationship between components, not the absolute positional relationship.

[0023] Figure 1 The first schematic diagram of a cigar appearance detection device according to an embodiment of the present utility model;

[0024] Figure 2 The test diagram of a cigar appearance detection device according to an embodiment of the present utility model;

[0025] Figure 3 The second schematic diagram of a cigar appearance detection device according to an embodiment of the present utility model;

[0026] Figure 4 The side view of the clamping assembly of a cigar appearance detection device according to an embodiment of the present utility model;

[0027] Figure 5 The top view of the cigarette inlet of a cigar appearance detection device according to an embodiment of the present utility model.

[0028] In the figure: 1, arc-shaped groove; 2, roller shaft; 3, imaging device; 4, clamping assembly; 41, first clamping block; 42, second clamping block; 43, limiting edge; 5, negative pressure hole; 6, chassis; 7, cigarette inlet; 71, guide rod; 8, cigarette outlet; 9, horizontal sliding table; 10, cigar; 11, transmission rod; 12, rotating motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model and the prior art, the specific embodiments of the present utility model will be described below with reference to the drawings. Obviously, the following drawings in the description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts and other embodiments can be obtained. Additionally, the terms related to orientation only represent the relative positional relationship between components, not the absolute positional relationship.

[0030] An embodiment of the present utility model provides a cigar appearance detection device. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , which mainly includes a roller, a camera device, and a clamping assembly.

[0031] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , in the embodiment of the present application, the cigar appearance detection device includes a roller 2, a camera device 3, and a clamping assembly 4. An arc-shaped groove 1 is arranged on the roller 2 at equal intervals along the surface of the roller 2. Negative pressure holes 5 are arranged on the inner wall of the arc-shaped groove 1, and the negative pressure holes 5 are connected to a negative pressure source. The negative pressure source can form a negative pressure on the arc-shaped groove 1 to adsorb the cigar. The camera device 3 is arranged in the circumferential direction of the roller 2, and the clamping assembly 4 is arranged between the camera device 3 and the roller 2. The position on the surface of the roller 2 closest to the clamping assembly 4 is recorded as the first position (i.e., the position where the cigar is located in Figure 1 ). The roller 2 rotates, and the cigar adsorbed in the arc-shaped groove 1 on the roller 2 is brought to the first position. When the cigar is brought to the first position, the sensor arranged at the first position will convert the detected information into an electrical signal and transmit the electrical signal to the control unit. After receiving the electrical signal, the control unit will control the roller 2 to stop rotating. The clamping assembly 4 clamps both ends of the cigar at the first position, the negative pressure source stops providing negative pressure, the clamping assembly 4 drives the cigar to rotate one week, and the camera device 3 takes a complete appearance image of the cigar during the rotation of the cigar. After the camera device 3 obtains the appearance image of the cigar, it will transmit the appearance image of the cigar to the control unit for processing to perform the shape detection of the cigar wrapper. By taking pictures of the cigar during its rotation, the entire circumferential surface of the cigar will be photographed, and thus a complete appearance image of the cigar can be obtained. Using the obtained appearance image to detect the appearance of the cigar not only improves the production efficiency of the cigar but also improves the accuracy of the appearance detection of the cigarette rod.

[0032] It should be noted that the processing process of the appearance image data of the cigar in the background is as follows: the image data obtained by the camera device 3 is synthesized into the circumferential surface expansion diagram data of the cigar, and a series of appearance parameters such as the maximum offset from the central axis, the height difference of the cut bevel, the finger ring, the vein pattern, the crease, the disease spot, the stain, the seam, the hole, the peeling, the breakage, and the perimeter are calculated and identified, and finally an evaluation is given. If the shape of the cigar wrapper conforms to the production standard, the clamping assembly 4 loosens both ends of the cigar, and the control unit will control the negative pressure source to turn on. The cigar is adsorbed in the arc-shaped groove 1, and the roller 2 rotates to send the cigar to the next process; if the shape of the cigar wrapper does not conform to the production standard, directly below the first position (taking Figure 2A collection box is provided based on the perspective. The clamping assembly 4 releases both ends of the cigar. The control unit will not control the negative pressure source to turn on, and the cigar is no longer under negative pressure suction. Under the action of gravity, the cigar falls from the arc-shaped groove 1 into the collection box. Since the image processing part is realized by means of various existing image recognition software and only some parameters are provided, this part of the content does not belong to the innovation of this application but belongs to the prior art, and no more detailed description is made for the implementation of this part of the technology. The goal can be achieved by means of most image recognition technologies.

[0033] Preferably, the imaging device 3 is a line array camera. A line array camera is a camera that uses a line array image sensor. Its sensor is linear, so the imaging is linear. The resolution of the line array camera only reflects in the horizontal direction, and usually there is only 1 pixel in the vertical direction. The imaging principle of the line array camera is as follows: When external light enters the camera lens, it is focused on the linear array of the sensor through the optical system. This linear array consists of multiple individual pixels, and each pixel can sense the intensity and color of the light and convert it into charge for storage. With the illumination of the light, the photoreceptor in each pixel accumulates charge, and the amount of charge depends on the intensity of the light. After the charge accumulation is completed, the sensor of the line array camera reads the charge stored in each pixel row by row and moves it to the photosensitive emitter. The photosensitive emitter converts the charge into a digital signal, and this conversion process is usually realized by an analog-to-digital converter (ADC) and output in digital form. Finally, the obtained digital signal is processed by image processing algorithms, including operations such as denoising and restoration, and finally an image is formed. Selecting a line array camera can obtain a linear image of the surface of the cigar. During the process of the clamping assembly 4 driving the cigar to rotate, since the position of the line array camera does not change, the line array camera will obtain multiple different linear images of the cigar. Each linear image is obtained with a different side of the cigar as the shooting surface. By splicing the linear images obtained by the line array camera during the rotation of the cigar, the complete appearance image of the cigar can be obtained.

[0034] The detection device further includes a chassis 6. A plurality of mounting holes are provided on the surface of the chassis 6. The roller shaft 2, the imaging device 3, and the clamping assembly 4 can all be fixed to the chassis 6 by other mounting methods such as screwing and plugging. The driving devices of the roller shaft 2 and the clamping assembly 4 are arranged inside the chassis 6. The driving device can adopt motor drive, and the motor shaft of the motor can pass through the mounting hole and then be connected to the roller shaft 2 or the clamping assembly 4. The chassis 6 is a basic component, providing a mounting basis for other components and at the same time providing protection for the driving devices of the roller shaft 2 and the clamping assembly 4.

[0035] To facilitate the connection of the detection device with the previous and subsequent processes, on the same side of the chassis 6, there is also provided along the vertical direction (taking Figure 2The upper and lower directions in the viewing angle are vertical directions) are arranged with a smoke inlet 7 and a smoke outlet 8, which are both fixedly connected to the chassis 6 by screw connection, and a guide is arranged inside the smoke inlet 7. The cigar enters the smoke inlet 7 from the previous process, and is guided to the arc groove 1 on the roller shaft 2 by the guiding action of the guide, and then the roller shaft 2 rotates to take the subsequent appearance image of the cigar and judge the appearance quality of the cigar.

[0036] Preferably, with the rotation center of the roller 2 as the vertex, the angle formed by the clamping assembly 4 and the smoke inlet 7 is an acute angle, so that when the negative pressure source does not provide negative pressure and the clamping assembly 4 has not yet grabbed the cigar, the cigar can still not fall out of the arc groove 1 under the support force provided by the roller 2, thereby improving the stability of the cigar.

[0037] Specifically, the guide member includes a plurality of guide rods 71 ​​parallel to each other, and the ends of the plurality of guide rods 71 ​​are fixed on the inner surface of the smoke inlet 7 in an integrally connected manner. After the cigar enters the smoke inlet 7, the plurality of guide rods 71 ​​abut against the cigar, and then the cigar changes its deflection posture during the falling process under the action of gravity, and the plurality of guide rods 71 ​​adjusts the cigar to be parallel to the arc groove 1, so that the cigar can accurately fall into the arc groove 1, and each cigar can be stably photographed by the camera device 3 to obtain an appearance image, and then the appearance quality of the cigar is inspected, thereby ensuring the production quality of the cigar.

[0038] Furthermore, a conveyor belt is provided below the smoke outlet 8, and the cigar will fall on the conveyor belt after leaving the smoke outlet 8, and the conveyor belt transports the cigar to the next process. A guide member with the same structure as the smoke inlet 7 can also be provided inside the smoke outlet 8 to ensure that the cigar falling on the conveyor belt has a consistent posture.

[0039] The detection device also includes a horizontal slide 9, which is arranged inside the chassis 6. The slide rail part of the horizontal slide 9 is fixed inside the chassis 6 in a screwed manner. The slider part of the horizontal slide 9 is provided with an integrally connected transmission rod 11, which passes through the mounting hole on the surface of the chassis 6 and extends to the side of the roller 2 away from the chassis 6. The transmission rod 11 is fixedly connected to the clamping assembly 4. The movement of the slider of the horizontal slide 9 drives the transmission rod 11 to move. During the movement of the transmission rod 11, the clamping assembly 4 and the cigar are abutted or separated. By setting the horizontal slide 9 to drive the clamping assembly 4 to move, the clamping assembly 4 can grasp the cigar more stably, and at the same time, it can also prevent the cigar from rubbing against the clamping assembly 4 when entering or leaving the first position.

[0040] Specifically, the clamping assembly 4 includes a first clamping block 41 and a second clamping block 42. The first clamping block 41 is arranged on the horizontal slide 9. One end of the transmission rod 11 away from the chassis 6 is provided with a first rotating threaded hole. The first clamping block 41 is provided with a rotating through hole. One end of the fixed shaft is provided with a thread. After one end of the fixed shaft penetrates the rotating through hole, it is screwed with the first rotating threaded hole. The other end of the fixed shaft abuts against the first clamping block 41, so that the first clamping block 41 can rotate on the horizontal slide 9. The second clamping block 42 is arranged on the chassis 6. The motor shaft of the rotating motor 12 penetrates the mounting hole on the surface of the chassis 6 and is fixedly connected to the second clamping block 42, so that the rotating motor 12 can drive the second clamping block 42 to rotate. When the cigar moves to the first position, the negative pressure source stops providing negative pressure. The horizontal slide 9 drives the first clamping block 41 to move towards the second clamping block 42, so that the first clamping block 41 and the second clamping block 42 respectively abut against different ends of the cigar. Then the rotating motor 12 is started to drive the second clamping block 42, the cigar and the first clamping block 41 to rotate, so that the imaging device 3 can obtain the appearance image of the cigar. After the appearance of the cigar wrapper is judged, the rotating motor 12 stops. The horizontal slide 9 drives the first clamping block 41 to move away from the second clamping block 42, and then the cigar is transported to the next process or the collection box.

[0041] Preferably, limiting edges 43 are arranged at the ends of the first clamping block 41 and the second clamping block 42 that can abut against the cigar. The limiting edges 43 are closed. The end of the cigar can be embedded in the limiting edges 43, which improves the stability of the clamping of the clamping assembly 4 and prevents the cigar from slipping between the first clamping block 41 and the second clamping block 42 during rotation.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0043] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific embodiments of the present utility model are only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A cigar appearance detection device, characterized in that: The invention comprises a roller (2) provided with an arc groove (1), a camera device (3) arranged in the circumferential direction of the roller (2), and a clamping assembly (4) arranged between the roller (2) and the camera device (3); a negative pressure hole (5) is provided on the inner wall of the arc groove (1), and the negative pressure hole (5) is connected to a negative pressure source; when the cigar moves to a first position on the roller (2), the clamping assembly (4) rotates the cigar once at the first position, and the camera device (3) is used to capture an image of the appearance of the cigar during the rotation of the cigar.

2. A cigar appearance detection device according to claim 1, characterized in that: The detection device further comprises a chassis (6), the roller (2), the camera device (3) and the clamping assembly (4) are all mounted on the chassis (6), and the driving devices of the roller (2) and the clamping assembly (4) are arranged inside the chassis (6).

3. A cigar appearance detection device according to claim 2, characterized in that: The detection device further comprises a smoke inlet (7) and a smoke outlet (8) arranged on the same side of the housing (6) in a vertical direction, wherein a guide member is provided on the smoke inlet (7), and the guide member is used to guide the cigar to the arc-shaped groove (1).

4. A cigar appearance detection device according to claim 3, characterized in that: With the rotation center of the roller shaft (2) as the vertex, the angle formed between the clamping assembly (4) and the smoke inlet (7) is an acute angle.

5. The cigar appearance detection device according to claim 3, characterized in that: The guide member comprises a plurality of guide rods (71) which are parallel to each other, and the ends of the plurality of guide rods (71) are fixedly connected to the inner surface of the smoke inlet (7).

6. A cigar appearance detection device according to claim 5, characterized in that: A conveyor belt for transporting cigars is provided below the smoke outlet (8).

7. A cigar appearance detection device according to claim 4, characterized in that: The detection device further comprises a horizontal slide (9), wherein the horizontal slide (9) is fixedly connected to the clamping assembly (4), and the horizontal slide (9) drives the clamping assembly (4) to move, and the clamping assembly (4) is used to grasp or release the cigar at the first position.

8. The cigar appearance detection device according to claim 7, characterized in that: The clamping assembly (4) comprises a first clamping block (41) arranged on the horizontal slide (9), and a second clamping block (42) arranged on the chassis (6); the first clamping block (41) and the second clamping block (42) are respectively in contact with different ends of the cigar, the first clamping block (41) can rotate on the horizontal slide (9), and the second clamping block (42) can rotate on the chassis (6), and the first clamping block (41) and the second clamping block (42) rotate synchronously, so as to drive the cigar to rotate one circle at the first position.

9. The cigar appearance detection device according to claim 8, characterized in that: An integral limiting edge (43) is provided at one end of the first clamping block (41) and the second clamping block (42) that contacts the cigar.

10. The cigar appearance detection device according to claim 1, characterized in that: The camera device (3) adopts a line array camera.

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