Visual image acquisition device for cigarettes in cigarette warehouse

Abstract

The utility model provides a visual image acquisition device for cigarettes in a cigarette warehouse. The visual image acquisition device comprises the cigarette warehouse, an expansion mechanism connected with an outlet of the cigarette warehouse, a distribution mechanism arranged in the expansion mechanism, a plurality of distribution tracks formed by the distribution mechanism, at least one cigarette channel connected with each distribution track, and a transportation mechanism arranged at the bottom of the cigarette channel. The visual collection mechanisms are located above the cigarette channel and are obliquely arranged, a diffuse reflection light source assembly is arranged at each visual collection mechanism, the light source assemblies form a light source range facing the visual collection mechanisms through the cigarette channel, and the radian of the light source range is 120-175 degrees; the electromagnetic valve is communicated with the cigarette channel and forms a removing mechanism, and removing force is formed when the electromagnetic valve is in an open state, so that the cigarettes are forced to be separated from the cigarette channel. According to the cigarette separating device, cigarette separating is achieved, and meanwhile end image collecting can be carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of image collection after cigarette branch separates, especially relates to visual image collection device of cigarette branch in tobacco warehouse. BACKGROUND

[0002] In prior art, cigarette branch in tobacco warehouse is separated through cooperation of shunt block, shunt device, push plate and agitator, the structure is complex at this time, and only one cigarette branch can be separated at one time, the whole process is complex and the operation is tedious. UTILITY MODEL CONTENT

[0003] The utility model discloses a visual image collection device of cigarette branch in tobacco warehouse, which not only realizes good separation of cigarette branch, but also performs image collection and rejection after separation, and has better effect.

[0004] To achieve the above object, the utility model realizes through the following technical scheme.

[0005] Visual image collection device of cigarette branch in tobacco warehouse, including,

[0006] Tobacco warehouse,

[0007] Expansion mechanism connected with the outlet of tobacco warehouse, shunt mechanism in expansion mechanism, a plurality of shunt trajectories are formed by shunt mechanism, at least one cigarette branch channel is connected to each shunt trajectory, and transportation mechanism is arranged at the bottom of cigarette branch channel.

[0008] A plurality of visual collection mechanisms are arranged above the cigarette branch channel and are arranged obliquely, a diffuse reflection light source assembly is arranged at each visual collection mechanism, the light source assembly passes through the cigarette branch channel, forms a light source range towards the visual collection mechanism, and the radian of the light source range is 120 DEG -175 DEG.

[0009] The electromagnetic valve is communicated with the cigarette branch channel, the electromagnetic valve forms a rejection mechanism, forms a rejection force in the open state, and forces the cigarette branch to separate from the cigarette branch channel.

[0010] Further, the tobacco warehouse, the expansion mechanism and the cigarette branch channel are sequentially arranged from top to bottom, and a plurality of cigarette branch channels are arranged in a matrix at the outlet of the expansion mechanism.

[0011] Further, the adjacent cigarette branch channels are isolated by the partition plates, and the adjacent partition plates form cigarette branch containing grooves.

[0012] Further, the transportation mechanism forms the bottom of the cigarette branch containing groove, and the transportation mechanism is a turnover groove.

[0013] Further, the visual collection mechanism and the rejection mechanism are respectively located on the front and back sides of the turnover groove, and the rejection mechanism is arranged close to the middle and lower parts of the turnover groove.

[0014] Further, the turnover groove is connected with a driving mechanism, the driving mechanism makes the turnover groove form a downward reciprocating rotation track, and the rotation range of the track is 0°-180°.

[0015] Further, the light source assembly comprises a strip-shaped light source arranged at the side of the camera, the strip-shaped light source comprises a plurality of lamp beads, and a semicircular lamp shell is arranged on each lamp bead.

[0016] Further, the strip-shaped light source and the camera form a collection surface, and the collection surface forms an included angle of 0°-60° with the end of the cigarette channel.

[0017] Further, the shunt mechanism comprises a primary shunt mechanism and a secondary shunt mechanism arranged from top to bottom, the secondary shunt mechanism is arranged at the side of the primary shunt mechanism, and at least two secondary shunt mechanisms are arranged below each primary shunt mechanism.

[0018] Further, the capacity expansion mechanism forms a gradually increasing diameter structure from top to bottom, and the narrowest end of the diameter structure is close to the cigarette warehouse outlet, and the widest end is close to the cigarette channel.

[0019] The beneficial effects of the utility model are as follows:

[0020] In the utility model, a plurality of cigarettes can be distinguished at one time and enter different cigarette channels, thereby improving the branch effect, especially for batch production, greatly improving the efficiency, and accelerating the entire production.

[0021] The capacity expansion mechanism is further added in the utility model, so that more cigarettes flowing out of the cigarette warehouse outlet can be separated in time, and the photo collection is carried out after separation, thereby providing a basis for judging the quality of the cigarettes through the photo afterwards. DRAWINGS

[0022] Figure 1 The structure schematic view of the cigarette warehouse in the prior art is provided for the utility model;

[0023] Figure 2 The structure schematic view of the visual image collection device of the cigarette in the cigarette warehouse provided for the utility model is provided for the utility model;

[0024] Figure 3 The structure schematic view of the visual image collection device of the cigarette in the cigarette warehouse provided for the utility model is provided for the utility model;

[0025] Figure 4 The front view of the visual image collection device of the cigarette in the cigarette warehouse provided for the utility model is provided for the utility model;

[0026] Figure 5 The top view of the cigarette channel provided for the utility model is provided for the utility model.

[0027] Figure 6 The assembly drawing of the rotating groove is provided in the utility model;

[0028] Figure 7 The structure schematic view of the light source assembly is provided in the utility model;

[0029] In the drawing,

[0030] 1, cigarette; 2, tobacco warehouse; 21, electromagnetic valve; 3, expansion mechanism; 4, shunt mechanism; 41, primary shunt mechanism; 42, secondary shunt mechanism; 5, cigarette channel; 51, rejection mechanism; 52, partition; 53, air blowing nozzle; 54, gear box; 55, graphite air guide plate; 6, transport mechanism; 61, turnover groove; 7, visual acquisition mechanism; 71, camera; 8, light source assembly; 81, strip-shaped light source; 9, encoder. DETAILED DESCRIPTION

[0031] The utility model will be explained in detail below in combination with each embodiment shown in the drawings, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or replacement of function, method or structure made by the ordinary skill in the art according to these embodiments all belong to the protection scope of the utility model.

[0032] Referring to the drawings, Figures 1-6 The visual image acquisition device of the cigarette in the tobacco warehouse in the embodiment includes the tobacco warehouse 2 for storing the completed cigarette 1, the expansion mechanism 3 is connected at the outlet of the tobacco warehouse 2, the expansion mechanism forms a cavity, because the outlet of the tobacco warehouse 2 is narrow, in order to accelerate the outflow speed, the expansion mechanism 3 is increased, the expansion mechanism 3 forms the expanding diameter cavity with gradually increasing width, then the width of the whole cavity is generally selected as the length of a cigarette, then it is convenient to arrange the cigarette one by one, at this time, when a large number of cigarettes flow out, it is easy to be piled up, at this time, in order to facilitate the subsequent outflow, the shunt mechanism 4 is arranged, at this time, the shunt mechanism 4 forms the shunt guide track (i.e. the shunt track), then the cigarette is shunted, the cigarette channel 5 is arranged at the bottom of the shunt track, the transport mechanism 6 is arranged at the bottom of the cigarette channel 5, the transport mechanism 6 makes the cigarette in the cigarette channel 5 transported to the equipment of the next step.

[0033] In this embodiment, the image of the cigarette end is mainly collected, and a plurality of visual collection mechanisms 7 are arranged obliquely above the cigarette channel 5. By oblique arrangement, a larger collection surface can be formed to obtain a larger image. At this time, a diffuse reflection light source assembly 8 can be arranged at each visual collection mechanism 7. The light source emitted by the light source assembly 8 is directly irradiated to the cigarette channel 5, and then forms a light source range towards the visual collection mechanism 7 after being reflected by the cigarette channel 5. The arc of the light source range is 120°-175°. At this time, the light range is further increased to assist in increasing the collection range, and the images of several cigarette channels can be collected at one time.

[0034] The linkage encoder 9 and the control mechanism are used in the utility model. The encoder is linked with the whole driving control to synchronize the transmission speed of the whole cigarette with the image collection device. Then, the analysis module in the control mechanism analyzes the collected cigarette image. When the cigarette image is unqualified, it is rejected. In order to complete the rejection, the electromagnetic valve communicating with the cigarette channel 5 forms the rejection mechanism 51 in the embodiment. The electromagnetic valve forms a rejection force in the open state to force the unqualified cigarette 1 to separate from the cigarette channel 5. In the embodiment, the electromagnetic valve is opened in actual use, and then air flow is generated. The air flow moves towards the air blowing nozzle 53 to form air flow that blows the cigarette head end surface to blow the cigarette away from the channel.

[0035] In the embodiment, the space is reasonably utilized, and then the expansion and shunting and the subsequent channel are formed to complete the guidance of the cigarette flow out of the cigarette warehouse. The cigarette is finally formed into a single cigarette flow, and the rejection mechanism is combined to synchronously reject the unqualified cigarette.

[0036] In one embodiment, in order to fully utilize the gravity, the cigarette warehouse 2, the expansion mechanism 3 and the cigarette channel 5 are sequentially arranged from top to bottom. The plurality of cigarette channels 5 are arranged in a matrix at the outlet of the expansion mechanism 3. At this time, the cigarette has a certain gravity and flows out of each mechanism from top to bottom under the action of gravity and finally enters the cigarette channel. In the embodiment, in order to facilitate arrangement, the plurality of cigarette channels 5 are arranged in a matrix, and each cigarette channel flows out a cigarette, such as a row of uniformly arranged cigarettes.

[0037] In order to avoid mutual interference, the adjacent cigarette channels 5 are isolated by the partition plate 52. The adjacent partition plates form a cigarette containing groove. At this time, the cigarette containing groove has the isolation and arrangement functions, and forms a row of single cigarette containing grooves from top to bottom.

[0038] In order to facilitate the subsequent cigarette flow and temporary stop of the cigarette flow, the conveying mechanism 6 forms the bottom of the cigarette accommodating groove, and the conveying mechanism 6 is a turnover groove 61. By means of the turnover of the turnover groove 61, the opening and closing of the bottom of the cigarette accommodating groove can be realized.

[0039] In the embodiment, the visual acquisition mechanism 7 and the rejection mechanism 51 are respectively located on the front and rear sides of the turnover groove 61, and the rejection mechanism 51 is arranged close to the middle and lower parts of the turnover groove 61. At this time, it can timely reject the cigarettes in the middle and lower parts, and preferably, it is arranged at the same height as the cigarettes at the bottom of the cigarette passage, facilitating the rejection.

[0040] In order to realize the turnover, the turnover groove 61 is connected with a driving mechanism, and the driving mechanism makes the turnover groove 61 form a downward reciprocating rotation track, and the rotation range of the track is 0°-180°. Here, only downward turnover is needed, that is, one end of the turnover groove is hinged to a partition plate, and then the other end is repeatedly turned along the hinged partition plate in a semicircle, the cigarettes are conveyed out downward, and the cigarette passage is closed upward, and the transportation is stopped.

[0041] In the embodiment, the rotation groove 61 can also be driven to rotate 180° and restore the groove position by the gear rotation in the gear box. The rejection mechanism is a blowing nozzle for blowing and rejecting, and is not connected with the rotation groove. In use, a single cigarette is detected in the static state of the rotation groove.

[0042] Referring to FIG. 1, Figure 6 In the embodiment, the turnover groove 61 and the rejection mechanism are communicated with the blowing nozzle 53 and the cigarette passage, a graphite air guide plate 55 can be arranged on the assembly frame, and then the blowing nozzle and the electromagnetic valve are ventilated, facilitating the rejection.

[0043] In the embodiment, in order to ensure that the camera can shoot the whole cigarette, the bottom of the cigarette has a hollow part, and only the buttocks part, that is, the bottom of the cigarette needs to be detected, and the whole appearance is not needed.

[0044] Referring to FIG. 1, Figure 7 As shown in the drawings, the light source assembly 8 includes a strip-shaped light source 81 located on the side of the camera 71, the strip-shaped light source includes a plurality of lamp beads, and a semicircular lamp shell is located on each lamp bead. In the embodiment, the semicircular lamp shell is used to diffuse the light of the lamp bead.

[0045] In use, the acquisition surface formed by the strip-shaped light source 81 and the camera 71 forms an included angle of 0°-60° with the end of the cigarette passage 5. In the embodiment, the included angle is acute, for example, in the assembly shell, it is extended outward, and then the camera assembly and the like are assembled at the extension, which is inclined to form an acute angle assembly, and then compared with the same height and direct parallel acquisition, the acquisition surface is large.

[0046] In one embodiment, especially by referring to FIG. 1, Figure 4It can be directly seen that in order to increase the shunting efficiency, the shunting mechanism 4 comprises primary shunting mechanisms 41 arranged from top to bottom and secondary shunting mechanisms 42 arranged at the side of the primary shunting mechanisms 41, and at least two secondary shunting mechanisms 42 are arranged below each primary shunting mechanism 41. In this embodiment, one primary shunting mechanism 41 and two secondary shunting mechanisms 42 can be selected, and then the uppermost primary shunting mechanism allows the cigarettes to flow to the left and right large channels by gravity. The secondary shunting mechanisms swing left and right with power, and the cigarettes are shunted to the small channels again.

[0047] Further, the capacity expansion mechanism 3 is formed into a diameter expansion structure with gradually increasing width from top to bottom, and the narrowest end of the diameter expansion structure is close to the outlet of the cigarette warehouse 1, and the widest end is close to the cigarette channel.

[0048] The visual image acquisition device of the cigarettes in the cigarette warehouse in this embodiment realizes online detection of single cigarettes, and the cigarette capacity expansion mechanism 3 is installed above the cigarette warehouse below the cigarette unloading equipment, so as to provide detection space and time for detection and processing results

[0049] The capacity expansion mechanism 3 in this embodiment is installed with the cigarette channel 5, which actively sorts the cigarettes into 30 cigarette channels, and the machine vision probe is arranged above the cigarette channel 5, and the rejection mechanism is arranged at the side. After the active sorting mechanism of the cigarette channel 5, if the detected cigarette is a good cigarette, the motor drives the cam to rotate in the forward and reverse directions with variable frequency, the cam drives the gear to rotate in the same direction, and the turnover groove 61 coaxially sleeved on the gear is reversely rotated by 180 degrees to flexibly transport the cigarette to the original machine warehouse

[0050] In this embodiment, the cigarettes are orderly transported to the detection position through the 30 single-channel channels through the cigarette channel 5, which realizes online detection and blowing rejection action,

[0051] In this embodiment, a control cabinet is also included, which is independently installed beside the machine table, so as to facilitate the operation and viewing of the system running dynamics by the user. Specifically, according to different machine types, the display mounting position can be customized, such as Figure 7 as shown, the display can be independently hung at a position convenient for the operator to view (optional).

[0052] In this embodiment, the following structures are specifically included:

[0053] In terms of visual probes, three sets of LED light sources, three sets of high-speed cameras and other mechanical accessories form three groups of visual acquisition, which detect the quality defects of the cigarettes in the left, middle and right channels, i.e. 30 channels.

[0054] In the expansion component of the warehouse, including two shunt (i.e. secondary shunt mechanism 42), a shunt block (i.e. the first shunt mechanism 41) and other mechanical accessories, ensure the fixed flow of cigarettes in the warehouse and do not affect the original machine production.

[0055] Cigarette active channeling mechanism, using servo motor, through three sets of motor drive each channel cam positive and negative direction variable frequency operation, at this time the use of gear box 54 cam to drive gear also rotate in the same direction, so that the flip tank 61 coaxially on the gear shows positive and negative 180 ° rotation, to accept cigarette delivery to the warehouse work, and strive for the time of online detection and processing of cigarettes.

[0056] Encoder 9, installed in the motor movement end, as the control phase of each channel motor. Encoder access PLC, PLC control each channel motor.

[0057] Elimination mechanism 51, installed below the visual probe, controlled by high-speed electromagnetic valve, unqualified cigarettes are removed through the air blowing nozzle.

[0058] Control cabinet, it is the core of the whole system, including a set of computer, a set of IO control board, display box and other devices. On the one hand, the system software is presented on the display box, providing a friendly man-machine interface for users; on the other hand, the system analyzes and processes the image of the cigarette according to the user configuration, and outputs the results.

[0059] In this embodiment, the light source component includes light source strip and LED light source fixing bracket and other mechanical devices. The light source strip is composed of LED high-brightness lighting lamp group and heat sink block, which provides a set of lighting mechanism for the system, highlights the cross-sectional feature points of the cigarette, and effectively suppresses the reflection of the tipping paper and the influence of external light, realizes uniform lighting, and measures from the aspects of stability, high brightness and long service life (flicker mode, service life ≥100000 hours). The system uses ES brand 24V DC LED high-brightness cold white light source, with brightness of 500-600LM, long service life and small light decay, and has PWM soft constant brightness mode, without flicker and affecting the normal work of on-site personnel. The imaging is clear, without light spot, and the brightness is adjustable.

[0060] At the same time, the exposure control is time-sharing, the light is shot from different angles of the cigarette, and the light source interference of different cameras is avoided. It has good adaptability to various brands of cigarettes and can meet the image detection requirements of various cigarettes.

[0061] General lighting generally uses strip or point lighting. Strip light is a commonly used general lighting method, which is easy to install on the lens and can provide sufficient lighting for diffuse reflection surface. The system uses multiple light source strips to form an arc-shaped diffuse reflection lighting, which forms strong parallel light, so that the cigarette has no dark area or overexposed area, which is convenient for detection software processing.

[0062] In this embodiment, the continuous diffuse reflection illumination is selected to be applied to the reflectivity of the object surface or the surface with complex angles, and the half-spherical uniform illumination is applied to the continuous diffuse reflection illumination, so as to reduce the shadow and the specular reflection.

[0063] For the camera in the visual acquisition mechanism, in order to meet the production speed of the cigarette and the defect detection rate of the measured object, the camera adopts a 1600-pixel USB color camera, and the frame rate reaches 227fps.

[0064] The camera in the embodiment adopts a global exposure Sony IMX273 CMOS photosensitive chip, transmits image data through a USB3.0 data interface, integrates an I / O (GPIO) interface, provides a cable locking device, can stably work in various harsh environments, and is a high-reliability and high-performance-price-ratio industrial digital camera product.

[0065] The image acquisition principle in the embodiment is as follows:

[0066] When the system works, the expansion mechanism 3 at the bottom of the tobacco warehouse 2 stores the cigarettes, and the diverter and the diverter block can realize the channeling of the cigarettes.

[0067] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation modes of the utility model, and they are not used to limit the protection scope of the utility model, and equivalent implementation modes or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

[0068] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0069] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A device for collecting visual images of cigarette packs in a warehouse, characterized in that, The utility model relates to a cigarette storage, a capacity expansion mechanism connected with the outlet of the cigarette storage, a shunt mechanism arranged in the capacity expansion mechanism, a plurality of shunt tracks formed by the shunt mechanism, at least one cigarette channel connected with each shunt track, a transportation mechanism arranged at the bottom of the cigarette channel, a plurality of visual collection mechanisms arranged above the cigarette channel and arranged obliquely, a diffuse light source assembly arranged at each visual collection mechanism, the light source assembly forming a light source range towards the visual collection mechanism through the cigarette channel, the arc of the light source range being 120-175 degrees, a solenoid valve communicated with the cigarette channel, the solenoid valve forming a rejection mechanism and forming a rejection force in the open state to force the cigarette to separate from the cigarette channel. From top to bottom, the cigarette storage, the capacity expansion mechanism and the cigarette channel are arranged in sequence, and a plurality of cigarette channels are arranged in a matrix at the outlet of the capacity expansion mechanism. Adjacent cigarette channels are isolated by a partition plate, and adjacent partition plates form a cigarette containing groove. The transportation mechanism forms the bottom of the cigarette containing groove, and the transportation mechanism is a turnover groove. The visual collection mechanism and the rejection mechanism are respectively arranged on the front and back sides of the turnover groove, and the rejection mechanism is arranged close to the middle and lower parts of the turnover groove.

2. The visual image acquisition device of cigarettes in a magazine according to claim 1, characterized in that, The turnover groove is connected with a driving mechanism, the driving mechanism makes the turnover groove form a downward reciprocating rotation track, and the rotation range of the track is 0-180 degrees.

3. The visual image acquisition device of cigarette packs in a humidor according to claim 2, characterized in that, The light source assembly includes a strip-shaped light source arranged on the side of the camera, the strip-shaped light source includes a plurality of lamp beads, and a semicircular lamp shell is arranged on each lamp bead.

4. The visual image acquisition device of cigarette packs in a humidor according to claim 3, characterized in that, The collection surface formed by the strip-shaped light source and the camera forms an angle of 0-60 degrees with the end of the cigarette channel.

5. The visual image acquisition device of cigarette packs in a humidor according to claim 4, characterized in that, The shunt mechanism includes a primary shunt mechanism and a secondary shunt mechanism arranged from top to bottom, the secondary shunt mechanism is arranged on the side of the primary shunt mechanism, and at least two secondary shunt mechanisms are arranged below each primary shunt mechanism.

6. The visual image capturing device of cigarette packs in a humidor according to claim 4, wherein, The capacity expansion mechanism forms a diameter expansion structure with gradually increasing width from top to bottom, the narrowest end of the diameter expansion structure is close to the outlet of the cigarette storage, and the widest end of the diameter expansion structure is close to the cigarette channel.

7. The visual image capturing device of cigarette packs in a humidor as recited in claim 1, wherein, ​ 8. The visual image acquisition device of cigarette packs in a humidor according to claim 7, characterized in that, ​ 9. The visual image capturing device of cigarette packs in a humidor according to claim 1, wherein, ​ 10. The visual image capturing device of cigarette packs in a humidor according to claim 1, wherein, ​

Images