A bar code print quality inspection apparatus

Abstract

The utility model discloses a bar code printing quality inspection equipment, including control unit, detection unit, and detection unit includes bar code mobile module, detection module, bar code mobile module includes: bar code placement board, motor drive unit, the recess for placing bar code is seted up on bar code placement board, and the black bar length direction in bar code is parallel with bar code placement board moving direction, and detection module includes: bar code code reader and fixed bolster, and the tangent plane of bar code code reader is perpendicular with the black bar length direction in bar code, and motor drive unit drives the bar code placement board that has placed bar code to move through bar code code reader with speed V, and bar code code reader carries out bar code collection with the tangent plane with the predetermined collection frequency, and the present application makes the tangent plane of code reader more times collection and inspects bar code, and then guarantees the accurate inspection of bar code printing quality, and makes the bar code that can be scanned every time subsequently after being inspected.

Description

Technical Field

[0001] This utility model relates to the field of barcode detection technology, and in particular to a barcode printing quality inspection device. Background Technology

[0002] Barcodes, as an important component of product packaging, are widely used in industries such as food, pharmaceuticals, and beverages to convey product information, warnings, and brand identification. Their printing quality directly affects the product's appearance and brand value. Defects during the printing process, such as smudges, ink spots, ink splatter, misregistration, color distortion, missing text, and scratches, are difficult to completely avoid. Therefore, rigorous quality inspection before labels leave the factory is a crucial step in the production process. Currently, label defect detection is generally achieved through manual inspection. Workers observe the labels visually under a dedicated viewing table or light source, judging the presence of quality defects based on experience. Of course, automated inspection equipment can also be used to detect and determine the presence of quality defects.

[0003] In the process of developing the existing technology, the inventors discovered that: Manual barcode inspection is significantly affected by factors such as human experience, fatigue, and mood, leading to a high accuracy rate and making it difficult to quantify inspection standards. Automated label inspection, typically using scanners to check barcodes transported on a conveyor belt, involves constant rotation and movement of the barcodes on the conveyor belt at any given speed. The requirement is simply that the barcode be scanned, without guaranteeing that every scan will be successful.

[0004] Therefore, this application provides a technical solution for accurately inspecting the printing quality of barcodes so that the barcode can be scanned every time, thereby solving the problem of poor quality inspection of printed barcodes by manual inspection and by automated equipment in the prior art. Utility Model Content

[0005] This invention provides a technical solution for accurately inspecting the printing quality of barcodes so that the barcodes can be scanned every time, thereby solving the problem of poor quality inspection of printed barcodes by manual inspection and by automated equipment in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A barcode printing quality inspection device is provided, including a control unit and a detection unit connected to the control unit for detecting barcodes. The detection unit includes a barcode moving module and a detection module disposed perpendicular to the top of the barcode moving module. The barcode moving module includes a barcode placement plate and a motor drive unit connected to the barcode placement plate. The barcode placement plate has a groove for placing the barcode, and the length direction of the black bars in the barcode is parallel to the moving direction of the barcode placement plate. The detection module includes a barcode reader and a fixed bracket. The barcode reader reads the barcode in a flat cut, and the flat cut surface of the barcode reader is perpendicular to the length direction of the black bars in the barcode. The motor drive unit drives the barcode placement plate, on which the barcode is placed, to move at a speed V through the barcode reader. The barcode reader collects the barcode in a flat cut at a predetermined collection frequency, thereby realizing the detection of barcode printing quality.

[0007] In a preferred embodiment of the present invention, the motor drive unit includes a sliding rail, a sliding block mounted on the sliding rail, and an electric sliding cylinder. The electric sliding cylinder drives the sliding block to slide on the sliding rail. The barcode placement plate is connected to the sliding block and is used so that the barcode placement plate slides with the sliding block when the sliding block slides.

[0008] In a preferred embodiment of this invention, the predetermined acquisition frequency of the barcode reader is positively correlated with the moving speed V of the label placement plate.

[0009] In a preferred embodiment of this utility model, the barcode reader is model OmronV520 R2BS-01-L01.

[0010] In a preferred embodiment of this utility model, an intermediate plate is further connected between the sliding block and the barcode placement plate.

[0011] In a preferred embodiment of this utility model, a limit plate is also installed on the sliding track, which is used to stop the movement of the barcode placement plate when the motor drive unit drives it to move to the limit plate.

[0012] In a preferred embodiment of the present invention, an emergency stop button connected to the control unit is also included.

[0013] The label printing quality inspection equipment provided in this application has the following beneficial effects: With this application, the barcode placed in the groove of the barcode placement plate moves back and forth along the length of the black bar in the barcode. The flat surface of the barcode reader is perpendicular to the length of the black bar in the barcode. The flat surface of the reader reads the barcode perpendicularly. Furthermore, the reader's predetermined acquisition frequency is set to be positively correlated with the moving speed V of the label placement plate, which allows the flat surface of the reader to acquire and inspect the barcode more times. This achieves accurate inspection of the barcode printing quality, ensuring that the inspected barcode can be scanned every time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a practical barcode printing quality inspection equipment; Figure 2 This is a schematic diagram of a practical barcode moving module; The components in the attached diagram are labeled as follows: Barcode printing quality inspection equipment-100; Control Unit-10; Detection Unit-20; Barcode moving module-21; Barcode placement plate-211; Groove-2111; Motor drive unit-212; Sliding rail-2121; Sliding block-2122; Electric sliding cylinder-2123; Intermediate plate-2124; Detection module-22; Barcode reader-221; Mounting bracket-222; Emergency stop button -30; Control screen -40. Detailed Implementation

[0015] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0016] Please see Figure 1This application provides a barcode printing quality inspection device 100, including a control unit 10 and a detection unit 20 connected to the control unit 10 for detecting barcodes. The detection unit 20 includes a barcode moving module 21 and a detection module 22 disposed perpendicularly above the barcode moving module 21. The barcode moving module 21 includes a barcode placement plate 211 and a motor drive unit 212 connected to the barcode placement plate 211. The barcode placement plate 211 has a groove 2111 for placing the barcode. The black bars in the barcode are long... The direction of the barcode reading is parallel to the moving direction of the barcode placement plate 211. The detection module 22 includes a barcode reader 221 and a fixed bracket 222. The barcode reader 221 reads the barcode in a flat cut, and the flat cut surface of the barcode reader 221 is perpendicular to the length direction of the black bars in the barcode. The motor drive unit 212 drives the barcode placement plate 211, on which the barcode is placed, to move at a speed V through the barcode reader 221. The barcode reader 221 collects the barcode in a flat cut at a predetermined acquisition frequency, thereby detecting the printing quality of the barcode. The reader completes the acquisition of the barcode at a predetermined acquisition frequency to detect the printing quality of the barcode.

[0017] Specifically, in the past, the inspection of printed barcodes was generally carried out by manual inspection or by automated equipment to determine whether there were printing quality defects. However, both inspection methods cannot accurately inspect the printing quality of barcodes, so that the labels cannot be scanned in subsequent application scenarios due to printing quality issues. Based on the above problems, this application aims to provide a technical solution that can more accurately inspect the printing quality of barcodes.

[0018] The control unit 10 is mainly used to control the movement of the barcode moving module 21 in the detection unit 20 and the reading of the barcode by the barcode reader 221 in the detection module 22. For example, during the movement of the barcode moving module 21, the control unit 10 controls the motor drive unit 212 to drive it, and the motor drive unit 212 drives the barcode placement plate 211 connected to it.

[0019] The control unit 10 can be implemented using a microcontroller or a microprocessor with simple functions. In a typical configuration, the control unit 10 may include one or more processors (CPUs), input / output interfaces, network interfaces, and memory. It should be noted that the control component 40 here may take the form of a standalone microcontroller, microprocessor, integrated circuit, etc., in specific applications. These specific forms obviously do not constitute a limitation on the scope of protection of this application.

[0020] The barcode moving module 21 is mainly used to move the barcode. The barcode moving module 21 includes a barcode placement plate 211 and a motor drive unit 212.

[0021] The barcode placement plate 211 is mainly used for placing barcodes. The barcode placement plate 211 has grooves 2111 for placing the barcodes, and the length direction of the black bars in the barcode is parallel to the moving direction of the barcode placement plate 211. That is, the barcode consists of several alternating black and white bars, and in this application, the length direction of the black bars in the barcode is parallel to the moving direction of the barcode placement plate 211.

[0022] Furthermore, the motor drive unit 212 includes a sliding rail 2121, a sliding block 2122 mounted on the sliding rail 2121, and an electric sliding cylinder 2123. The electric sliding cylinder 2123 drives the sliding block 2122 to slide on the sliding rail 2121. The barcode placement plate 211 is connected to the sliding block 2122 and is used to slide along with the sliding block 2122 when the sliding block 2122 slides.

[0023] Specifically, the barcode placement plate 211 is driven by the motor drive unit 212 to move the barcode placement plate 211 and the barcode installed on the barcode placement plate 211.

[0024] It should also be noted that, in addition to being placed in the groove of the barcode placement plate 211, the barcode installed on the barcode placement plate can also have a clamping device for fixing the barcode provided around the groove of the barcode placement plate. That is to say, the groove is used for positioning, and the clamping device is mainly used for fixing. In a preferred embodiment provided in this application, the clamping device may consist of a spring hinge fixed to the barcode placement plate and springs assembled to the two hinges.

[0025] Furthermore, an intermediate plate 2124 is connected between the sliding block 2122 and the barcode placement plate 211. It can be understood that the sliding block 2122 can be directly connected to the barcode placement plate 211, or it can be connected to the barcode placement plate 211 through the intermediate plate 2124. In a preferred embodiment provided in this application, the intermediate plate 2124 is mainly provided to protect the sliding block 2122 and reduce direct wear between the sliding block 2122 and the barcode placement plate 211.

[0026] The barcode placement plate 211 is driven by the motor drive unit 212 to slide along the sliding direction of the sliding block 2122. The length direction of the black bar in the barcode is parallel to the moving direction of the barcode placement plate 211. Therefore, when the barcode placement plate 211 slides along the sliding direction of the sliding block 2122, the barcode slides while the length direction of the black bar remains parallel to the moving direction of the barcode placement plate 211. Under this premise, the barcode reader 221, model OmronV520 R2BS-01-L01, performs a flat-cut reading of the barcode.

[0027] It can be understood that when the barcode slides through the barcode reader 221, a portion of the alternating black and white bars in the barcode is scanned perpendicularly and tangentially by the cross-section of the barcode reader 221, thus enabling the reading of the barcode. It can also be understood that since the barcode has a certain length, when it completely passes through the barcode reader 221, the barcode reader 221 can read the barcode at least once.

[0028] Furthermore, the predetermined acquisition frequency of the barcode reader 221 is related to the moving speed V of the label placement plate.

[0029] Specifically, in order to improve the inspection of barcode printing quality, in a preferred embodiment provided in this application, the predetermined acquisition frequency of the barcode reader 221 is associated with the moving speed V of the label placement plate. With this setting, the barcode reader 221 can cut the barcode passing through the barcode reader 221 more times at a speed V, thereby achieving a more accurate inspection of the overall printing quality of the barcode.

[0030] Furthermore, a limit plate is also installed on the sliding track 2121, which is used to stop the movement of the barcode placement plate 211 when it is driven to move to the limit plate by the motor drive unit 212.

[0031] Specifically, considering the various sizes of barcodes, the control unit 10 controls the driving and stopping of the motor drive unit 212, or sets a limit plate to limit the barcode placement plate 211, thereby enabling the complete inspection of the printing quality of barcodes of various sizes.

[0032] Furthermore, it also includes an emergency stop button 30 connected to the control unit 10. The emergency stop button 30 is mainly used to suspend the operation of the equipment in the event of an unknown dangerous situation.

[0033] Furthermore, the control unit 10 in this application also includes a control screen 40, used to transmit control commands to the control unit 10 via the control screen 40. The control commands include: adjusting the motor drive unit 212 of the barcode moving module 21 in the detection unit 20, or adjusting a predetermined acquisition frequency of the barcode reader 221 in the detection module 22.

[0034] In one application scenario provided in this application, a barcode is placed in the groove 2111 of the barcode placement plate 211 along the length of its black bars. The control unit 10 controls the barcode moving module 21 to move towards the detection module 22, so that the flat surface of the barcode reader 221 reads the barcode perpendicularly. Several black and white bars in the barcode are scanned tangentially by the flat surface of the barcode reader 221, thereby completing the reading at that position. Based on this, the control unit 10 controls the motor drive unit 212 to drive the barcode placement plate 211 at a speed V that is related to the acquisition frequency of the barcode reader 221, so that the reader can read the barcode more times and thus read the barcode more accurately to check the barcode printing quality.

[0035] In addition, the control unit 10 controls the barcode moving module 21 to move back and forth so that the barcode reader 221 can read a single barcode 4-5 times. If the barcode is read correctly each time and the reading rate is above 95%, then the barcode printing quality is qualified.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A barcode printing quality inspection device, comprising a control unit and a detection unit connected to the control unit for detecting barcodes, characterized in that, The detection unit includes a barcode moving module and a detection module positioned perpendicular to the top of the barcode moving module; The barcode moving module includes: a barcode placement plate, a motor drive unit connected to the barcode placement plate, and a groove for placing the barcode on the barcode placement plate. The length direction of the black bars in the barcode is parallel to the moving direction of the barcode placement plate. The detection module includes: a barcode reader and a fixed bracket. The barcode reader reads the barcode in a flat cut, and the flat cut surface of the barcode reader is perpendicular to the length direction of the black bars in the barcode. The motor drive unit drives the barcode placement plate, on which the barcode is placed, to move at a speed V through the barcode reader. The barcode reader collects the barcode in a flat cut at a predetermined collection frequency, thereby realizing the detection of the barcode printing quality.

2. The barcode printing quality inspection equipment according to claim 1, characterized in that, The motor drive unit includes a sliding rail, a sliding block mounted on the sliding rail, and an electric sliding cylinder. The electric sliding cylinder drives the sliding block to slide on the sliding rail. The barcode placement plate is connected to the sliding block and is used so that the barcode placement plate slides with the sliding block when the sliding block slides.

3. The barcode printing quality inspection equipment according to claim 1, characterized in that, The predetermined acquisition frequency of the barcode reader is positively correlated with the moving speed V of the label placement plate.

4. The barcode printing quality inspection equipment according to claim 1, characterized in that, The barcode reader is model OmronV520 R2BS-01-L01.

5. The barcode printing quality inspection equipment according to claim 2, characterized in that, An intermediate plate is also connected between the sliding block and the barcode placement plate.

6. The barcode printing quality inspection equipment according to claim 2, characterized in that, A limit plate is also installed on the sliding track, which is used to stop the movement of the barcode placement plate when it is driven to move to the limit plate by the motor drive unit.

7. The barcode printing quality inspection equipment according to claim 1, characterized in that, It also includes an emergency stop button connected to the control unit.

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