Multi-mirror two-dimensional code reading system

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Through the multi-mirror QR code reading system, multi-angle mirror projection is realized using the prism device, which solves the problems of low reading rate and high cost of cigarette QR code in the prior art, improves the success rate and speed of code reading, and reduces maintenance Difficulty and cost.

CN222337638UActive Publication Date: 2025-01-10BEIJING CHINA TOBACCO INFORMATION TECH

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Patent Information

Application Number: CN202421232569.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-31
Publication Date: 2025-01-10
Estimated Expiration: 2034-05-31

AI Technical Summary

Technical Problem

The existing cigarette QR code reading system increases hardware procurement and maintenance costs when increasing the code reading rate, but the results are not ideal and it is difficult to cope with the problems of abnormal cigarette posture and changes in QR code position angle.

Method used

Using a multi-mirror QR code reading system, the QR code on the cigarette is mirrored to the code reader through a prism device, and the multi-angle mirror projection is realized using the principle of optical refractive, which improves the code reading success rate and reduces the fixed code reader. number.

Benefits of technology

It significantly improves the success rate of QR code reading, reduces equipment procurement and maintenance costs, simplifies the maintenance process, and is suitable for a variety of scenarios, especially in a narrow space environment, improving code reading speed and reliability.

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Abstract

The utility model discloses a multi-mirror two-dimensional code reading system, and aims to solve the problems that the hardware purchase cost and the maintenance cost are increased and the effect is not particularly ideal due to the fact that the code reading rate is increased by increasing the number of fixed code readers and optimizing the cigarette posture when the existing cigarette two-dimensional code is read. The system comprises a base, a PLC, a detector and a two-dimensional code reader, the PLC is installed on the base, and the detector is installed on the base through a support and used for detecting cigarette cartons; the two-dimensional code reader is installed on the base through the supporting assembly and used for reading two-dimensional codes on the cigarette cartons. According to the utility model, a mirror image projection principle generated by refraction of visible light of the prism is adopted, the prism device is arranged at a proper position, a reasonable angle is adjusted, a real-time multi-angle mirror image effect on a cigarette two-dimensional code is formed, a plurality of identifying and reading objects are provided for a fixed code reader, the code reading rate is improved, the cost is low, and the effect is remarkable.

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Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette production, and in particular relates to a multi-mirror two-dimensional code reading system. Background Art

[0002] Compared with QR code reading of cigarettes in packs, strips and pieces, QR code reading of cigarettes in packs, strips and pieces requires a higher reading rate. The line speed ranges from 6 packs / second to 16 packs / second. Among them, bar pack QR code reading is the most complicated in the commercial link. While requiring a higher reading rate, it is also necessary to deal with the abnormal posture of the strips and packs on the conveyor line.

[0003] When reading existing cigarette QR codes, there are problems such as unstable cigarette posture, fast conveying speed and changes in the position and angle of the QR code. The optimization measures commonly adopted by the industry are mainly to increase the number of fixed readers and optimize the cigarette posture. These two ideas increase hardware procurement and maintenance costs, and the results are not particularly ideal. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a multi-mirror two-dimensional code reading system, which aims to solve the problem that the existing cigarette two-dimensional code reading improves the reading rate by increasing the number of fixed readers and optimizing the cigarette posture, which not only increases the hardware procurement cost and maintenance cost, but also the effect is not particularly ideal.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides such a multi-mirror two-dimensional code reading system, which includes a base, a PLC, a detector and a two-dimensional code reader, wherein the PLC is installed on the base, and the detector is installed on the base through a bracket for detecting cigarettes;

[0008] The two-dimensional code reader is installed on a base through a supporting component for reading the two-dimensional code on the cigarette carton. The reading area of the two-dimensional code reader is provided with a prism through an adjusting component. The prism is used to mirror-project the two-dimensional code on the cigarette carton to the two-dimensional code reader.

[0009] Preferably, the bracket includes two vertical plates and one horizontal plate, the top ends of the vertical plates are fixedly connected to the horizontal plate, and the bottom ends of the vertical plates are fixedly connected to the base.

[0010] Furthermore, the support assembly includes a fixing rod fixedly connected to the base, the top end of the fixing rod is fixedly connected to a cylinder, the outer surface of the cylinder is movably mounted with a fixing block by screws, and the QR code reader is fixedly connected to one end of the fixing block.

[0011] Furthermore, there are multiple prisms, and the mirror angle of each prism is different.

[0012] Furthermore, the prism is a right-angle prism, and the prism is used to mirror-project the cigarette QR code image at a right angle of 90 degrees.

[0013] Furthermore, the adjustment assembly includes a column fixedly connected to the base, the top of the column is fixedly connected to a fixed plate, the upper surface of the fixed plate is provided with a groove, the left inner wall of the groove is rotatably connected to a movable plate via a circular shaft, the prism is fixedly connected to the movable plate, the right lower surface of the movable plate is rotatably connected to a connecting rod via a pin shaft, a movable block is provided inside the groove, the other end of the connecting rod is rotatably connected to the movable block via a pin shaft, a screw rod is threadedly connected to the right side of the fixed plate, the left end of the screw rod passes through the movable block and is fixedly connected to a limiting block, the screw rod is threadedly connected to the movable block, and a knob is fixedly connected to the right side of the screw rod.

[0014] Furthermore, a sliding block is fixedly connected to the lower surface of the movable block, and a sliding groove corresponding to the sliding block is formed on the inner bottom wall of the groove.

[0015] Beneficial Effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model adopts the mirror projection principle produced by the refraction of visible light through a prism, deploys the prism device at an appropriate position, and adjusts the reasonable angle to form a real-time multi-angle mirror effect on the two-dimensional code of the cigarette strip, providing multiple reading objects for the fixed code reader. At the same time, the installation structure of the fixed code reader remains unchanged, and the corresponding environmental structure is not affected. While improving the code reading rate, the cost is low and the effect is remarkable.

[0018] The utility model can improve the code reading success rate of a single fixed code reader by 3% (actually equivalent to adding one fixed code reader) by adding a set of prism auxiliary devices for reading the two-dimensional code of cigarette strips. Because multiple sets of prism auxiliary devices have realized the two-dimensional code mirroring of different cigarette strip angles, the number of unnecessary fixed code readers installed can be effectively reduced, thereby reducing the equipment procurement cost.

[0019] The utility model can be applied to the requirements of QR code reading in various scenarios. A single or multiple prism systems can be configured according to the actual business environment conditions. The QR code images can be projected at multiple points and angles. The installation and debugging of fixed QR code readers is difficult due to narrow space, and the difficulty of equipment maintenance is greatly reduced. Only the prism system needs to be cleaned regularly. At the same time, it has the advantages of simple replacement steps and low maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a front view structural schematic diagram of the prism of the utility model installed horizontally.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the support assembly of the utility model.

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the adjustment component of the utility model.

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the regulating component of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the prism of the utility model installed longitudinally.

[0026] The marks in the accompanying drawings are: 1. base; 2. conveying assembly; 3. PLC; 4. detector; 5. bracket; 6. QR code reader; 7. support assembly; 8. adjustment assembly; 9. prism; 501. vertical plate; 502. horizontal plate; 701. fixing rod; 702. cylinder; 703. screw; 704. fixing block; 801. column; 802. fixing plate; 803. groove; 804. round shaft; 805. movable plate; 806. connecting rod; 807. movable block; 808. screw; 809. limit block; 810. knob; 811. slider; 812. slide groove. DETAILED DESCRIPTION

[0027] This specific implementation is a multi-mirror two-dimensional code reading system, and its structural schematic diagram is as follows Figure 1-Figure 6 As shown, the system includes a base 1, a PLC 3, a detector 4 and a two-dimensional code reader 6. The PLC 3 is installed on the base 1, and the detector 4 is installed on the base 1 through a bracket 5 for detecting cigarettes;

[0028] The two-dimensional code reader 6 is mounted on the base 1 through the support assembly 7 for reading the two-dimensional code on the cigarette strip. The code reading area of the two-dimensional code reader 6 is provided with a prism 9 through the adjustment assembly 8. The prism 9 is used to project the two-dimensional code on the cigarette strip onto the two-dimensional code reader 6;

[0029] The system can also be used in conjunction with a conveying component 2, the conveying component 2 is used to convey cigarettes, the detector 4 detects the cigarettes on the conveying component 2, and the number of two-dimensional code readers 6 can be set as needed. For example, when detecting the two-dimensional codes on both sides of the cigarette, a two-dimensional code reader 6 can be set on each side, and a prism 9 is also set on the corresponding adjustment component 8;

[0030] This arrangement does not change the currently fixed mounting structure of the QR code reader 6. A prism 9 auxiliary device is installed below the end of the cigarette carton so that the QR code on the end of the cigarette carton forms an elevation mirror image. The mirror image is within the reading area of the QR code reader 6, providing it with a second readable QR code and a readable QR code angle, thereby improving the success rate of code reading.

[0031] like Figure 1 and Figure 2 As shown: In this embodiment, the bracket 5 includes two vertical plates 501 and a horizontal plate 502. The top ends of the vertical plates 501 are fixedly connected to the horizontal plate 502, and the bottom ends of the vertical plates 501 are fixedly connected to the base 1. This arrangement facilitates the fixation of the detector 4 so that it can better detect the transported cigarettes.

[0032] like Figure 2 and Figure 3 As shown: In this embodiment, the support assembly 7 includes a fixed rod 701 fixedly connected to the base 1, the top of the fixed rod 701 is fixedly connected to a cylinder 702, the outer surface of the cylinder 702 is movably mounted with a fixed block 704 by a screw 703, and the QR code reader 6 is fixedly connected to one end of the fixed block 704.

[0033] Loosening the screw 703 in this way can make the fixing block 704 rotate around the cylinder 702, so as to facilitate the adjustment of the angle of the two-dimensional code reader 6 and better read the code.

[0034] like Figure 2 and Figure 6 As shown: In this embodiment, there are multiple prisms 9, and the mirror angles of each prism 9 are different.

[0035] In this way, each two-dimensional code reader 6 can be equipped with one or more prism systems to replicate one or more cigarette two-dimensional code images and mirror them at different angles.

[0036] like Figure 2 and Figure 6 As shown: In this embodiment, the prism 9 is a right-angle prism, and the prism 9 is used to mirror-project the cigarette two-dimensional code image at a right angle of 90 degrees.

[0037] This setting utilizes the principle of light refraction of a right-angle prism to mirror-project the cigarette QR code image at a 90-degree right angle, thereby creating a second QR code, making the QR code reading more selective and improving the QR code reading rate.

[0038] like Figure 4 and Figure 5As shown: In this embodiment, the adjustment component 8 includes a column 801 fixedly connected to the base 1, the top of the column 801 is fixedly connected to a fixed plate 802, the upper surface of the fixed plate 802 is provided with a groove 803, the left inner wall of the groove 803 is rotatably connected to a movable plate 805 through a circular shaft 804, the prism 9 is fixedly connected to the movable plate 805, the right lower surface of the movable plate 805 is rotatably connected to a connecting rod 806 through a pin shaft, a movable block 807 is provided inside the groove 803, the other end of the connecting rod 806 is rotatably connected to the movable block 807 through a pin shaft, a screw rod 808 is threadedly connected to the right side of the fixed plate 802, the left end of the screw rod 808 passes through the movable block 807 and is fixedly connected to a limiting block 809, the screw rod 808 is threadedly connected to the movable block 807, and a knob 810 is fixedly connected to the right side of the screw rod 808.

[0039] In this arrangement, the prism 9 is installed on both sides of the conveying component 2 through the adjustment component 8, and then the knob 810 is turned to drive the screw rod 808 to rotate. Since the screw rod 808 is threadedly connected to the movable block 807, the screw rod 808 can drive the movable block 807 to move during the rotation process. During the movement of the movable block 807, the fixed plate 802 and the prism 9 can be driven to rotate around the circular axis 804 through the connecting rod 806 until the prism 9 projects the mirror image of the two-dimensional code on the cigarette strip onto the reading area of the two-dimensional code reader 6, so that the two-dimensional code reader 6 can read the two two-dimensional codes through the prism 9.

[0040] like Figure 4 and Figure 5 As shown: In this embodiment, a sliding block 811 is fixedly connected to the lower surface of the movable block 807 , and a sliding groove 812 corresponding to the sliding block 811 is formed on the inner bottom wall of the groove 803 .

[0041] This arrangement guides the movement of the movable block 807 through the cooperation between the slider 811 and the slide groove 812, avoiding the tilting phenomenon and making the adjustment angle of the prism 9 more stable.

[0042] Working principle: When in use, a cigarette strip is arranged on the conveying component 2, and the two-dimensional codes on both sides are read by the two-dimensional code reader 6. The prism 9 is installed on both sides of the conveying component 2 through the adjustment component 8, and then the knob 810 is turned to drive the screw rod 808 to rotate. Since the screw rod 808 is threadedly connected with the movable block 807, the screw rod 808 can drive the movable block 807 to move during the rotation process. During the movement process, the movable block 807 can drive the fixed plate 802 and the prism 9 to rotate around the circular axis 804 through the connecting rod 806 until the prism 9 projects the two-dimensional code on the cigarette strip into the code reading area of the two-dimensional code reader 6;

[0043] like Figure 2 and Figure 6The core design of the multi-mirror two-dimensional code reading system shown is based on the principle of optical refraction. One or more prisms 9 can be provided to project more two-dimensional code images with different angles from the two-dimensional code images printed on cigarette boxes, strips, and pieces. The two-dimensional code reader 6 is set to a multi-code reading mode to create multi-dimensional code reading, making the selectivity of reading two-dimensional codes higher and improving the two-dimensional code reading rate, thereby solving the problem that the two-dimensional code reader 6 cannot be installed or the angle cannot meet the code reading in some scenarios.

[0044] Compared with the existing technical solutions for QR code reading, the multi-mirror QR code reading system can significantly improve the QR code reading success rate, about 3% on average, and further increase the maximum speed of code reading. The following table shows the effect comparison data:

[0045]

[0046]

[0047] Experiments have shown that adding a multi-mirror two-dimensional code reading system can increase the code reading success rate by 3%.

[0048] All technical features in this implementation case can be freely combined according to actual needs.

[0049] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A multi-mirror two-dimensional code reading system, characterized in that: The system includes: A base (1), a PLC (3), a detector (4) and a two-dimensional code reader (6), wherein the PLC (3) is mounted on the base (1), and the detector (4) is mounted on the base (1) via a bracket (5) for detecting cigarette strips; The two-dimensional code reader (6) is mounted on a base (1) via a support assembly (7) and is used to read the two-dimensional code on a cigarette carton. The code reading area of the two-dimensional code reader (6) is provided with a prism (9) via an adjustment assembly (8). The prism (9) is used to project a mirror image of the two-dimensional code on the cigarette carton onto the two-dimensional code reader (6).

2. The multi-mirror two-dimensional code reading system according to claim 1, characterized in that: The bracket (5) comprises two vertical plates (501) and a horizontal plate (502), the top ends of the vertical plates (501) are fixedly connected to the horizontal plate (502), and the bottom ends of the vertical plates (501) are fixedly connected to the base (1).

3. The multi-mirror two-dimensional code reading system according to claim 2, characterized in that: The support assembly (7) comprises a fixing rod (701) fixedly connected to the base (1); a cylinder (702) is fixedly connected to the top of the fixing rod (701); a fixing block (704) is movably mounted on the outer surface of the cylinder (702) via a screw (703); and the two-dimensional code reader (6) is fixedly connected to one end of the fixing block (704).

4. The multi-mirror two-dimensional code reading system according to claim 3, characterized in that: The number of the prisms (9) is multiple, and the mirror angle of each prism (9) is different.

5. The multi-mirror two-dimensional code reading system according to claim 4, characterized in that: The prism (9) is a right-angle prism, and the prism (9) is used to perform mirror projection of the cigarette two-dimensional code image at a right angle of 90 degrees.

6. The multi-mirror two-dimensional code reading system according to claim 5, characterized in that: The adjustment assembly (8) comprises a column (801) fixedly connected to the base (1); the top of the column (801) is fixedly connected to a fixed plate (802); a groove (803) is provided on the upper surface of the fixed plate (802); a movable plate (805) is rotatably connected to the left inner wall of the groove (803) via a circular shaft (804); the prism (9) is fixedly connected to the movable plate (805); and the lower right surface of the movable plate (805) is rotatably connected to a connecting rod (805) via a pin shaft. 06), a movable block (807) is arranged inside the groove (803), the other end of the connecting rod (806) is rotatably connected to the movable block (807) through a pin shaft, the right side of the fixed plate (802) is threadedly connected with a screw rod (808), the left end of the screw rod (808) passes through the movable block (807) and is fixedly connected to a limit block (809), the screw rod (808) is threadedly connected to the movable block (807), and the right side of the screw rod (808) is fixedly connected with a knob (810).

7. The multi-mirror two-dimensional code reading system according to claim 6, characterized in that: A sliding block (811) is fixedly connected to the lower surface of the movable block (807), and a sliding groove (812) corresponding to the sliding block (811) is formed on the inner bottom wall of the groove (803).