Bar code recognition device for threshing and redrying finished tobacco box

Abstract

The utility model provides a threshing and redrying finished product tobacco box bar code recognition device, which comprises a rack, a first conveying belt and a PLC (Programmable Logic Controller), the rack stretches across the first conveying belt, a first photoelectric switch is arranged on the first conveying belt, a first conveying motor of the first conveying belt is connected with the first photoelectric switch, a light shield is arranged on the rack, and a second photoelectric switch is arranged on the PLC. An industrial camera and a light source group which are positioned above the first conveying belt are arranged in the light shield; the PLC comprises an image processing module, a bar code analysis module and a data transmission module, the image processing module is connected with the industrial camera, the data transmission module is connected with a box-by-box comparison system of a control computer, and the data transmission module is connected with the first conveying motor or the first photoelectric switch. According to the utility model, the manual operation process and workload are reduced, the inconsistency of real object information and bar code information caused by manual operation errors such as box jumping and scanning omission is avoided, the accuracy and reliability of data are ensured, and the risk of missing factory data of the smoke box is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco raw material processing, in particular to a bar code recognition device for a finished tobacco box of threshing and re-baking products. Background Art

[0002] The barcode affixed to the box of finished tobacco leaves after redrying represents important production information of each finished tobacco. The barcode can be used to track the production, quality, circulation and sales of the finished tobacco. Its uniqueness ensures the legality and safety of the product's exclusive circulation.

[0003] At present, the surface of the finished cigarette box is affixed with the label of the redrying processing enterprise and the label of the cigarette industry enterprise. The label is attached with a barcode and has its own barcode compilation rules.

[0004] In the existing barcode recognition process, due to the inconsistency of label size, content and barcode, the existing barcode scanner cannot adapt to the on-site scanning environment. When collecting barcode information, manual real-time adjustment of the scanner is required. The same workstation still needs to manually scan the code after printing, tearing and sticking (binding) the label, which adds a burden to the originally compact workflow, increases the amount of manual operation, and causes many missed scans and errors during manual operation. When box skipping or missed scanning occurs, the physical information will be inconsistent with the barcode information, and the accuracy and reliability of the data cannot be ensured. There is a high risk of missing data for finished cigarette boxes leaving the factory. Utility Model Content

[0005] The utility model aims to provide a barcode identification device for a finished tobacco box of threshing and redrying products to solve the above technical problems.

[0006] The utility model provides a barcode recognition device for a finished tobacco box of threshing and redrying, comprising a frame, a first conveyor belt and a PLC controller, wherein the frame spans across the first conveyor belt, a first photoelectric switch is arranged on the first conveyor belt, a first conveying motor of the first conveyor belt is connected to the first photoelectric switch, a light shield is arranged on the frame, and an industrial camera and a light source group located above the first conveyor belt are arranged in the light shield;

[0007] The PLC controller includes an image processing module, a barcode parsing module and a data transmission module. The image processing module is connected to an industrial camera, the data transmission module is connected to a box-by-box comparison system of a control computer, and the data transmission module is connected to the first conveying motor or the first photoelectric switch.

[0008] Furthermore, a database is provided in the control computer, and the database is connected with the box-by-box comparison system.

[0009] Furthermore, the light source group includes a horizontal light source and a vertical light source, which are installed on a rack. The horizontal light source is located below the industrial camera, and the vertical light source is installed on the inner side of the rack.

[0010] Furthermore, the light shield includes a light shielding cover plate and two light shielding side plates. The light shielding cover plate is installed on the top of the frame, and the two light shielding side plates are arranged on the outer side of the frame relatively.

[0011] Furthermore, an extension plate is installed at the end of the shading side plate close to the material incoming direction.

[0012] Furthermore, an online detection unit and a discharging conveyor belt are sequentially provided in the material removal direction of the first conveyor belt, a discharging photoelectric switch is provided on the discharging conveyor belt, and a discharging conveying motor of the discharging conveyor belt is connected to the discharging photoelectric switch.

[0013] Furthermore, the online detection unit includes a gantry and a second conveyor belt, the gantry spans the second conveyor belt, the second conveyor belt is provided with a second photoelectric switch, a microwave moisture meter is installed on the gantry, a moisture meter computer of the microwave moisture meter is installed on the top of the gantry, and the second conveying motor of the second conveyor belt is connected to the second photoelectric switch.

[0014] Furthermore, the PLC controller also includes a data comparison module, the moisture meter computer is connected to the data comparison module, and the data comparison module is connected to the second conveying motor or the second photoelectric switch.

[0015] Furthermore, an audible and visual alarm is installed on the gantry, and the audible and visual alarm is connected to the data comparison module.

[0016] Furthermore, the first conveyor belt, the second conveyor belt and the discharge conveyor belt are at the same height.

[0017] The utility model is easy to use and effectively replaces the existing technology of manually adjusting barcode scanning, reduces the manual operation process and workload, avoids the inconsistency between the physical information and the barcode information caused by human operation errors such as box skipping and missed scanning, ensures the accuracy and reliability of the data, and greatly reduces the risk of missing data on cigarette boxes leaving the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural front view of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3This is the internal structure diagram of the barcode parsing unit of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the barcode parsing unit of the utility model;

[0023] Figure 5 This is the control principle diagram of the utility model;

[0024] Description of reference numerals:

[0025] In the figure: 1-first conveyor belt, 11-first conveyor motor, 2-second conveyor belt, 21-second conveyor motor, 3-discharging conveyor belt, 31-discharging conveyor motor, 32-delay relay, 4-box turner, 41-axle seat, 42-gear, 43-gear ring, 44-conveyor platform, 5-barcode parsing unit, 51-frame, 52-industrial camera, 53-horizontal light source, 54-vertical light source, 55-shading cover, 56-shading side plate, 57-extension plate, 6-online detection unit, 61-gantry, 62-microwave moisture meter, 63-moisture meter computer, 64-sound and light alarm, 7-control computer, 71-database, 72-box-by-box comparison system, 8-PLC controller, 81-image processing module, 82-barcode parsing module, 83-data transmission module, 84-data comparison module, 91-to-be-tested cigarette box, 92-tested cigarette box; DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Example 1

[0030] like Figure 1-Figure 5 As shown:

[0031] A barcode recognition device for a finished tobacco box for threshing and redrying comprises a PLC controller 8, a barcode analysis unit 5, an online detection unit 6 and a discharging conveyor belt 3 which are arranged in sequence in the direction of incoming materials.

[0032] The PLC controller 8 includes an image processing module 81 , a barcode parsing module 82 , a data transmission module 83 and a data comparison module 84 .

[0033] The barcode parsing unit 5 includes a frame 51 and a first conveyor belt 1. The frame 51 spans across the first conveyor belt 1. A first photoelectric switch is provided at a position of the first conveyor belt 1 close to the incoming material direction. The first conveying motor 11 of the first conveyor belt 1 is connected to the first photoelectric switch. When the first photoelectric switch detects that there is a cigarette box 91 to be tested in the incoming material direction, the first photoelectric switch controls the first conveying motor 11 to stop working, and the cigarette box 91 to be tested stops moving forward.

[0034] A light shield is provided on the frame 51 , and an industrial camera 52 and a light source group located above the first conveyor belt 1 are provided in the light shield.

[0035] The light shield includes a light shielding cover plate 55 and two light shielding side plates 56 . The light shielding cover plate 55 is installed on the top of the frame 51 , and the two light shielding side plates 56 are arranged on the outer side of the frame 51 opposite to each other.

[0036] The light source group includes a horizontal light source 53 and a vertical light source 54 . The horizontal light source 53 and the vertical light source 54 are installed on the frame 51 and located above the first conveyor belt 1 . The horizontal light source 53 is located below the industrial camera 52 , and the vertical light source 54 is installed on the inner side of the frame 51 .

[0037] An extension plate 57 is installed at the end of the light shielding side plate 56 close to the material incoming direction.

[0038] The industrial camera 52 is connected to the image processing module 81. The industrial camera 52 takes a surface photo of the cigarette box 91 to be tested with a barcode and transmits the photo to the image processing module 81. The image processing module 81 recognizes the barcode image and transmits the barcode image to the barcode parsing module 82. The barcode parsing module 82 parses the barcode information in the barcode image into cigarette box data information.

[0039] The PLC controller 8 is connected to a control computer 7 , in which a database 71 and a box-by-box comparison system 72 are arranged, and the database 71 is connected to the box-by-box comparison system 72 .

[0040] The cigarette box data information parsed by the PLC controller 8 is transmitted to the box-by-box comparison system 72 of the control computer 7 through the data transmission module 83. The box-by-box comparison system 72 retrieves the data from the database 71 for comparison with the cigarette box data information.

[0041] The data transmission module 83 is connected to the first conveyor motor 11 of the first conveyor belt 1. When it is confirmed that the data transmission module 83 transmits the cigarette box data information to the control computer 7, the PLC controller 8 controls the first conveyor motor 11 to start, and the cigarette box 91 to be tested on the first conveyor belt 1 continues to move to the next process.

[0042] The data transmission module 83 can also be connected to the first photoelectric switch of the first conveyor belt 1. When it is confirmed that the data transmission module 83 transmits the cigarette box data information to the control computer 7, the PLC controller 8 controls the first photoelectric switch to turn off, and the first conveyor belt 1 continues to work, and the cigarette box 91 to be tested on the first conveyor belt 1 continues to move to the next process.

[0043] In order to meet energy-saving requirements, the industrial camera 52 and the light source group in the present device can also be electrically connected to the first photoelectric switch respectively. When the first photoelectric switch detects that there is a cigarette box 91 to be tested in the incoming direction, the first photoelectric switch controls the industrial camera 52 and the light source group to be powered on. Under normal conditions, when the first photoelectric switch detects that there is no cigarette box 91 to be tested on the first conveyor belt 1, the industrial camera 52 and the light source group do not work, thereby saving energy and electricity.

[0044] An online detection unit 6 is provided in the material removal direction of the barcode analysis unit 5 .

[0045] The online detection unit 6 includes a gantry 61 and a second conveyor belt 2. The gantry 61 spans across the second conveyor belt 2. A second photoelectric switch is provided on the second conveyor belt 2. A microwave moisture meter 62 is installed on the gantry 61. A moisture meter computer 63 of the microwave moisture meter 62 is installed on the top of the gantry 61.

[0046] The second conveying motor 21 of the second conveyor belt 2 is connected to the second photoelectric switch. When the second photoelectric switch detects that there is a cigarette box 91 to be tested in the incoming direction, the second photoelectric switch controls the second conveying motor 21 to stop working, the cigarette box 91 to be tested stops moving forward, and the microwave moisture meter 62 performs moisture detection on the cigarette box 91 to be tested.

[0047] The second conveyor belt 2 is flush with the height of the first conveyor belt 1 .

[0048] The microwave transmitter and the microwave receiver of the microwave moisture meter 62 are respectively installed on the crossbars of the gantry 61, and the clearance distance between the microwave transmitter and the microwave receiver is greater than the height of the smoke box 91 to be tested.

[0049] When microwaves from the microwave moisture meter 62 pass through materials containing water molecules, water molecules absorb energy in the electromagnetic field due to their polarity, and the various spectrum characteristics of this part of the energy absorbed by the water molecules maintain a linear relationship with the water molecule content. The microwave moisture meter 62 can obtain the water content in the measured medium by measuring the linear relationship between this part of the spectrum characteristics and the water molecules and adding data models and special algorithms. Microwaves can penetrate non-metallic materials by spatial radiation, so that the internal characteristics of the material can be fully understood by using the microwave method, and the measurement results are not affected by the surface structure and color of the material, and the measurement accuracy is high, so the density and humidity of the material can be measured quickly, accurately, in real time, and non-destructively; at the same time, since the microwave power used for measurement is extremely small, it will not cause pollution or harm to the workplace, the measured material, and the operator.

[0050] The moisture meter computer 63 is provided with a display screen, on which the moisture value detected by the microwave moisture meter 62 can be viewed. The moisture meter computer 63 is connected to the data comparison module 84 in the PLC controller 8 .

[0051] An audible and visual alarm 64 is also installed on the gantry 61 . The audible and visual alarm 64 is connected to a data comparison module 84 , and the data comparison module 84 is connected to the second conveying motor 21 .

[0052] The microwave moisture meter 62 measures the moisture value of the smoke box 91 to be tested through a microwave transmitter and a microwave receiver. The moisture value is displayed on the display screen of the moisture meter computer 63, and the worker can observe it intuitively. At the same time, the moisture value is transmitted to the data comparison module 84 for comparison with the preset value.

[0053] The data comparison module 84 is connected to the second conveyor motor 21 of the second conveyor belt 2. When it is confirmed that the data comparison module 84 receives the moisture value detected by the microwave moisture meter 62, the PLC controller 8 controls the second conveyor motor 21 to start, and the cigarette box 91 to be tested on the second conveyor belt 2 continues to move to the next process.

[0054] The data comparison module 84 can also be connected to the second photoelectric switch of the second conveyor belt 2. When it is confirmed that the data comparison module 84 has received the moisture value detected by the microwave moisture meter 62, the PLC controller 8 controls the second photoelectric switch to turn off, the second conveyor belt 2 continues to work, and the cigarette box 91 to be tested on the second conveyor belt 2 continues to move to the next process.

[0055] The microwave moisture meter 62 in the device can also be electrically connected to the second photoelectric switch. When the second photoelectric switch detects that there is a cigarette box 91 to be tested in the incoming direction, the second photoelectric switch controls the microwave moisture meter 62 to be powered on. Under normal conditions, when the second photoelectric switch detects that there is no cigarette box 91 to be tested on the second conveyor belt 2, the microwave moisture meter 62 does not work, saving energy and electricity.

[0056] If the moisture value detected by the microwave moisture meter 62 is not within the preset value, the data comparison module 84 controls the sound and light alarm 64 to start the sound and light alarm, and the workers promptly carry out follow-up work on the unqualified cigarette boxes.

[0057] A discharging conveyor belt 3 is provided in the material removal direction of the online detection unit 6, and a discharging photoelectric switch is provided on the discharging conveyor belt 3.

[0058] The discharging conveying motor 31 of the discharging conveyor belt 3 is connected to the discharging photoelectric switch. When the discharging photoelectric switch detects that there is a measured cigarette box 92 in the incoming direction, the discharging photoelectric switch controls the second conveying motor 21 to start working, and the measured cigarette box 92 moves forward. The discharging conveyor belt 3 performs discharging and transporting work on the measured cigarette box 92.

[0059] The first conveyor belt 1, the second conveyor belt 2 and the discharge conveyor belt 3 are flush with each other.

[0060] The data comparison module 84 is electrically connected to the discharging conveying motor 31 via the time delay relay 32 .

[0061] When the moisture value detected by the microwave moisture meter 62 is not within the preset value, the data comparison module 84 controls the delayed start of the discharge conveying motor 31. At this time, the measured smoke box 92 arrives at the connection between the second conveyor belt 2 and the discharge conveyor belt 3, the discharge conveyor belt 3 has not started yet, and the measured smoke box 92 is stagnant, which makes it convenient for workers to remove the measured smoke box 92 during the delay time for subsequent processing.

[0062] A carton turner 4 is provided in the material incoming direction of the barcode parsing unit 5. The carton turner 4 includes two annular gear rings 43 arranged opposite to each other. Four conveying platforms 44 with the same length and width are arranged between the annular gear rings 43. Adjacent conveying platforms 44 are vertically arranged and connected at the ends. The conveying directions of the four conveying platforms 44 are consistent, and each conveying platform 44 is equipped with a conveying motor.

[0063] The outer circumferential surface of the gear ring 43 is provided with teeth, and the bottom of the gear ring 43 is symmetrically provided with a shaft seat 41. The shaft seat 41 is provided with a gear 42 meshing with the gear ring 43, and the gear 42 is connected to a driving motor.

[0064] There are four shaft seats 41 , and the four shaft seats 41 have the same height.

[0065] The gear 42 is driven by a driving motor. The rotating gear 42 drives the gear ring 43 to rotate, so that the surface of the cigarette box 91 to be tested with the barcode faces upward. There is no need to manually adjust the cigarette box, which reduces the manual operation process and workload and facilitates subsequent shooting by the industrial camera 52.

[0066] The utility model is easy to use and effectively replaces the existing technology of manually adjusting barcode scanning, reduces the manual operation process and workload, avoids the inconsistency between the physical information and the barcode information caused by human operation errors such as box skipping and missed scanning, ensures the accuracy and reliability of the data, and greatly reduces the risk of missing data on cigarette boxes leaving the factory.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A barcode recognition device for finished tobacco boxes after leaf threshing and redrying, characterized in that: The invention comprises a frame (51), a first conveyor belt (1) and a PLC controller (8); the frame (51) spans the first conveyor belt (1); a first photoelectric switch is provided on the first conveyor belt (1); a first conveying motor (11) of the first conveyor belt (1) is connected to the first photoelectric switch; a light shield is provided on the frame (51); an industrial camera (52) and a light source group located above the first conveyor belt (1) are provided in the light shield; The PLC controller (8) comprises an image processing module (81), a barcode parsing module (82) and a data transmission module (83); the image processing module (81) is connected to the industrial camera (52); the data transmission module (83) is connected to the box-by-box comparison system (72) of the control computer (7); and the data transmission module (83) is connected to the first conveying motor (11) or the first photoelectric switch.

2. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 1 is characterized in that: The control computer (7) is provided with a database (71), and the database (71) is connected to a box-by-box comparison system (72).

3. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 1 is characterized in that: The light source group comprises a horizontal light source (53) and a vertical light source (54), wherein the horizontal light source (53) and the vertical light source (54) are installed on a frame (51), wherein the horizontal light source (53) is located below the industrial camera (52), and the vertical light source (54) is installed on the inner side of the frame (51).

4. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 1 is characterized in that: The light shield comprises a light shielding cover plate (55) and two light shielding side plates (56); the light shielding cover plate (55) is mounted on the top of the frame (51); and the two light shielding side plates (56) are arranged on the outer side of the frame (51) in a relative manner.

5. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 4 is characterized in that: An extension plate (57) is installed at the end of the light shielding side plate (56) close to the material incoming direction.

6. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 1 is characterized in that: The first conveyor belt (1) is provided with an online detection unit (6) and a discharge conveyor belt (3) in sequence in the material removal direction; the discharge conveyor belt (3) is provided with a discharge photoelectric switch; and a discharge conveying motor (31) of the discharge conveyor belt (3) is connected to the discharge photoelectric switch.

7. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 6 is characterized in that: The online detection unit (6) comprises a gantry (61) and a second conveyor belt (2), the gantry (61) spans the second conveyor belt (2), a second photoelectric switch is provided on the second conveyor belt (2), a microwave moisture meter (62) is installed on the gantry (61), a moisture meter computer (63) of the microwave moisture meter (62) is installed on the top of the gantry (61), and a second conveying motor (21) of the second conveyor belt (2) is connected to the second photoelectric switch.

8. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 7 is characterized in that: The PLC controller (8) further comprises a data comparison module (84), the moisture meter computer (63) is connected to the data comparison module (84), and the data comparison module (84) is connected to the second conveying motor (21) or the second photoelectric switch.

9. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 8 is characterized in that: An audible and visual alarm (64) is also installed on the gantry (61), and the audible and visual alarm (64) is connected to the data comparison module (84).

10. The barcode identification device for finished tobacco boxes after leaf threshing and redrying according to claim 7, characterized in that: The first conveyor belt (1), the second conveyor belt (2) and the discharge conveyor belt (3) are all at the same height.

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