An identification printing device

Abstract

This utility model discloses a label printing device, characterized in that: the device includes a transmission device, an RFID identification device, a paint spraying device, a positioning device, a laser printing device, a visual barcode reader, and an electrical control system; wherein, the RFID identification device, the paint spraying device, the laser printing device, the visual barcode reader, the electrical control system, and the touch screen are mounted on a bracket, and a door is provided on one side of the RFID identification device; the paint spraying device is used to spray paint onto the surface of the workpiece to provide a substrate for laser printing, effectively solving the problems of low color contrast between laser printing and cement substrate, blurry labels leading to difficulty in scanning, inkjet printhead clogging due to dust, frequent equipment failures; poor label durability, easy to fall off and fade during handling and storage, and lack of verification in the coding process, making it difficult to ensure the accuracy and readability of the labels.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation technology, and in particular to a marking printing device. Background Technology

[0002] In industrial production, the limitations of traditional processes pose a significant challenge to the entire process of quality control when coding workpieces such as cement test blocks and precast concrete components, which have surfaces with adhering dust and strong color inertness in the substrate. The core challenges lie in three dimensions: failure of the color development mechanism, insufficient resistance to engineering environments, and lack of data closure. Breakthroughs are urgently needed through collaborative innovation in material modification, process adaptation, and intelligent verification.

[0003] The thermal effect of lasers on cement-based surfaces presents a color development paradox of "shallow carbonization - deep inertness": high-power output can induce localized carbonization to form black markings, but the bond between the carbonized layer and the substrate is weak, making it prone to peeling off during handling and friction; at low power, laser energy cannot penetrate the dense layer of the material, resulting in a grayish-white, semi-transparent marking that has almost no contrast on light-colored substrates, leading to a surge in the false recognition rate of barcode scanning devices. Furthermore, the non-uniformity of aggregate distribution further exacerbates the color development defects; the difference in thermal conductivity in coarse aggregate areas easily creates a "spot effect," damaging the geometric integrity of the QR code module.

[0004] Traditional ink wetting and curing processes on cement-based substrates face a dual challenge: the porous structure and high surface energy of the substrate lead to insufficient ink penetration, resulting in "floating ink" and a sharp drop in marking abrasion resistance; while fine particles in industrial dust physically adsorb ink solvents, accelerating the clogging of printhead micropores and increasing the frequency of equipment downtime for maintenance. Even with UV curing technology, the adhesion between the cured film and the substrate is still limited by the weak chemical bonding characteristics of cement hydration products, making it prone to interlayer delamination in humid environments.

[0005] The existing coding process relies on manual operation, which is prone to omissions and errors, resulting in low efficiency. The lack of synchronization verification between dynamic QR codes and the production database leads to mismatches between batch information and actual components, posing a risk of component misuse during assembly. Furthermore, the coding equipment lacks adaptive adjustment capabilities, failing to dynamically optimize printing parameters based on the substrate surface condition, further exacerbating fluctuations in marking quality. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a label printing device that effectively solves the problems of low color contrast between laser printing and cement substrate, blurry labels making scanning difficult, inkjet printheads being prone to dust clogging and frequent equipment failures, poor label durability, easy detachment and fading during handling and storage, and lack of verification in the coding process, making it difficult to ensure the accuracy and readability of the labels.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A label printing device includes a transmission device, an RFID identification device, a paint spraying device, a laser printing device, a visual barcode reader, and an electrical control system. The RFID identification device, paint spraying device, laser printing device, visual barcode reader, electrical control system, and touch screen are mounted on a bracket. The RFID identification device has a door on one side. The paint spraying device is used to spray paint onto the surface of the workpiece to provide a substrate for laser printing.

[0009] Preferably, the transmission device includes one of the following: a conveyor chain, a conveyor belt, a double-speed chain, a roller chain, an electric push rod, a cylinder, or a device for transferring and positioning the target workpiece and for transporting goods. The transmission device transfers and positions the target workpiece.

[0010] Preferably, the RFID identification device achieves information isolation through a door.

[0011] Preferably, the paint spraying device is used to spray paint onto the bottom surface of the workpiece to provide a substrate for laser printing.

[0012] Preferably, the positioning device includes a push rod, one end of which is connected to a guide rail slider and the other end is connected to a positioning plate. The push rod includes an electric push rod, a cylinder, a linear motor, and a mechanism capable of linear motion.

[0013] Preferably, the laser printing device can adjust the laser intensity and frequency as needed.

[0014] Preferably, the visual barcode reader is able to identify and verify whether the laser printing is consistent with the preset pattern, text, or barcode information.

[0015] Preferably, the electrical control system includes a communication interface for exchanging data with external devices or networks, a function for receiving user-inputted printing or scanning commands, a function for processing digital signals from visual barcode readers, and a data processing unit for sending data ready for printing to the laser printer.

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

[0017] This invention utilizes a transportation system to stably transport target objects to a laser printing area. During transportation, RFID identification and painting of the workpiece are achieved. The entire transportation process is controlled by a PLC in the electrical control system, which starts or stops the PLC to ensure smooth transport of the workpiece. The laser printing device prints preset patterns, text, or barcodes onto the surface of the target object, supporting objects of various materials and shapes. The visual barcode reader automatically scans and identifies the printed markings to ensure readability and accuracy. The electrical control system coordinates the operation of the laser printing device and the visual barcode reader, achieving fully automated control of the entire process from transporting the coded object and laser printing to automatic scanning and identification. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the marking printing device in one embodiment of the present invention.

[0019] Figure 2 This is a front view of the overall structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the positioning device of this utility model.

[0021] Figure 4 This is a schematic diagram of the lifting device structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the visual barcode reading device of this utility model.

[0023] Figure 6 This is a schematic diagram of the paint spraying device of this utility model.

[0024] Figure 7 This is a block diagram of the operation control of the modular structure of this utility model.

[0025] The diagram is labeled as follows: 1. Bracket; 2. Transmission device; 3. Visual barcode reader; 4. Barcode reader bracket; 5. Positioning device; 6. Laser printing device; 7. Laser printing bracket; 8. Paint spraying device; 9. RFID identification device; 10. Door; 11. Electrical control system; 12. Touch screen; 13. Lifting device; 14. Sensor; 101. First electric push rod; 102. Guide rail slider; 103. Push rod bracket; 104. Positioning plate; 105. Mounting bracket; 201. Top block plate; 202. Top block mounting plate; 203. Guide positioning seat; 204. Guide rod; 205. Second electric push rod; 206. Mounting base plate; 207. Linear bearing; 301. Overall bracket; 302. Barcode scanning mounting bracket; 303. Barcode scanning device; 401. Paint can; 402. Spray gun; 403. Pressing plate; 404. Cylinder; 405. Paint spraying mounting bracket. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-7 The specific embodiments of this utility model will be described in further detail.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Depend on Figures 1-7 This utility model proposes a label printing device:

[0029] The conveying device 2 is installed in the support 1, and the device uses a conveyor belt to transport the workpiece.

[0030] The transmission device 2 may specifically include one of the following: a conveyor chain, a conveyor belt, a double-speed chain, a roller chain, an electric push rod, a cylinder, or a device for transferring and positioning the target workpiece and for transporting goods. The transmission device 2 is used to transfer and position the target workpiece.

[0031] Door 10 is installed on the far right of bracket 1, and RFID device 9 is installed on the left side of door 10.

[0032] The paint spraying device 8 includes a paint tank 401, a spray gun 402, a pressing plate 403, a cylinder 404, and a paint spraying mounting bracket 405. The spray gun 402 and the cylinder 404 are mounted on the paint spraying mounting bracket 405, the paint tank 401 is mounted next to the spray gun 402, and the pressing plate 403 is mounted at one end below the spray gun and at the other end on the cylinder 404.

[0033] The lifting device 13 includes a top plate 201, a top plate mounting plate 202, a guide positioning seat 203, a guide rod 204, a second electric push rod 205, and a mounting base plate 206. The top of the mounting base plate 206 is equipped with a linear bearing 207, and the top of the mounting base plate 206 is equipped with the second electric push rod 205. The top of the second electric push rod 205 is equipped with the top plate 202. The extension and retraction of the second electric push rod 205 can change the height of the top plate 202. The top of the top plate 202 is equipped with multiple top plates 201, which are used for positioning the workpiece. The bottom of the top plate 202 is equipped with a guide rod 204, and the middle of the guide rod 204 is equipped with a guide positioning seat 203. The guide rod 204 is slidably connected to the linear bearing 207.

[0034] The positioning device 5 includes a first electric push rod 101, a guide rail slider 102, a push rod bracket 103, a positioning plate 104, and a mounting bracket 105. The push rod bracket 103 is located on the outer side of the first electric push rod 101, and the positioning plate 104 is located on the top of the first electric push rod 101. The guide rail slider 102 is located on the inner side of the positioning plate 104, and the mounting bracket 105 is located on the outer side of the guide rail slider 102. The inner side of the mounting bracket 105 is connected to the bracket 1. The extension and retraction of the first electric push rod 101 can change the position of the positioning plate 104.

[0035] The laser printing device 6 can adjust the laser intensity and frequency according to the needs. It has a built-in power control system that can match the laser power density to different media such as cement substrate and metal, so as to realize laser coding under complex industrial conditions. Its bottom is rigidly connected to the bracket 101.

[0036] The laser printing device 6 is an existing structure. Specifically, the laser intensity and frequency can be adjusted by manually adjusting its built-in laser power unit, thereby achieving laser coding on different media such as cement substrates and metals.

[0037] In addition, an automatic adjustment module can be installed inside to automatically match the laser intensity and frequency for different media such as cement substrates and metals.

[0038] The visual barcode reader 3 includes an overall support 301, a barcode mounting bracket 302, and a barcode scanner 303. The overall support 301 has the barcode mounting bracket 302 at its bottom, and the barcode scanner 303 is located at the bottom of the mounting bracket 302. The position of the barcode scanner 303 can be adjusted. The barcode scanner 303 can identify and verify whether the laser print matches the preset pattern, text, or barcode information.

[0039] The electrical control system 11 includes a communication interface for exchanging data with external devices or networks, a function for receiving print or scan commands input by the user, a function for processing digital signals from visual barcode readers, and a data processing unit for sending data ready for printing to the laser printer.

[0040] The electrical control system 11 is an existing structure, which can be a PLC or other control terminal.

[0041] The specific workflow of the above components is as follows: RFID identification - painting - lifting device lifting - positioning device positioning - laser marking - scanning.

[0042] In use: The target workpiece is placed on the conveying device 2, including but not limited to conveying devices that can transport items such as conveyor chains, conveyor belts and cylinders. The electrical control system detects the position of the target object through sensors (including but not limited to photoelectric sensors, position sensors, mechanical sensors, Hall sensors, etc.).

[0043] When a workpiece is transported to the RFID station via the conveyor 2, the sensor 14 detects it, and the PLC control door 10 in the electrical control system closes, isolating the information, and the conveyor 2 stops moving. After the RFID identification device 9 identifies the workpiece, the host computer coding software retrieves the number from the database and displays it on the touch screen 12, and the PLC controls the conveyor 2 to continue operating.

[0044] Once the workpiece is transported to the painting station via the conveyor 2 and the electrical control system successfully detects the workpiece, the paint spraying device 8 sprays paint onto the workpiece.

[0045] When the workpiece is transported to the marking station via the conveyor 2, the PLC of the electrical control system controls the lifting device 13 to lift the workpiece using the 201 top plate, preventing the workpiece from contacting the conveyor 2. The PLC controls the positioning device 5 to position the workpiece. After positioning, the electrical control system controls the positioning device 5 to return to its initial state and simultaneously sends a start command to the laser printing device. The laser printing device then prints on the surface of the target object according to the set information.

[0046] After completing the printing task, the laser printer sends a printing completion signal to the PLC in the electrical control system.

[0047] After receiving the printing completion signal, the PLC in the electrical control system triggers the barcode scanning device 303, which scans and identifies the laser-printed patterns, text, or barcodes on the target object.

[0048] After the visual barcode reader 3 completes the scanning and recognition, it sends a scanning completion signal to the PLC in the electrical control system.

[0049] After receiving the scanning completion signal, the PLC in the electrical control system controls the lifting device 13 to place the object on the transmission device 2 and transport the object out of the device.

[0050] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0053] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A label printing device, characterized in that: The device includes a transmission device (2), an RFID identification device (9), a paint spraying device (8), a positioning device (5), a laser printing device (6), a visual barcode reader (3), and an electrical control system (11); wherein, the RFID identification device (9), the paint spraying device (8), the laser printing device (6), the visual barcode reader (3), the electrical control system (11), and the touch screen (12) are mounted on a bracket, and a door (10) is provided on one side of the RFID identification device (9), and the paint spraying device (8) is used to spray paint on the surface of the workpiece to provide a substrate for laser printing.

2. The marking printing device according to claim 1, characterized in that: The transmission device (2) includes a conveyor chain or conveyor belt or speed-multiply chain or roller chain or electric push rod or cylinder, and the transmission device (2) realizes the transfer and positioning of the target workpiece.

3. The marking printing device according to claim 1, characterized in that: The paint spraying device (8) is connected to the bracket (1).

4. The marking printing device according to claim 1, characterized in that: The positioning device (5) includes a push rod, one end of which is connected to the guide rail slider (102) and the other end is connected to the positioning plate. The push rod may be an electric push rod, a cylinder, or a linear motor.

5. The marking printing device according to claim 1, characterized in that: The laser printing device (6) can adjust the laser intensity and frequency as needed.

6. The marking printing device according to claim 1, characterized in that: The visual barcode reader (3) can identify and verify whether the laser printing is consistent with the preset pattern, text or barcode information.

7. The marking printing device according to claim 1, characterized in that: The electrical control system (11) includes a communication interface for exchanging data with external devices or networks, a function for receiving user input of printing or scanning instructions, a function for processing digital signals from visual barcode readers, and a data processing unit for sending data to be printed to a laser printer.

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