A laser marking anti-duplicate code device
By adding a color sensor to the laser marking equipment, the detection of the QR code status is connected in series with the marking signal button, which solves the problem of duplicate codes in laser marking and improves the output rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 苏州奎兢精密电子有限公司
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-10
AI Technical Summary
During the laser marking process, duplicate product codes lead to a decrease in the yield rate and are difficult to control effectively.
A scanning unit is added to the coding equipment, and a color sensor is set to a normally closed or normally open state. By detecting the QR code status and connecting it in series with the coding signal button, duplicate coding is prevented.
It enables automatic identification of product coding status, avoids duplicate coding, and improves product yield.
Smart Images

Figure CN224475741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser marking device technology, and in particular to a laser marking anti-duplicate code device. Background Technology
[0002] Laser marking machines use a laser beam to create permanent marks on the surfaces of various materials. The marking effect occurs by evaporating the surface material to expose the deeper material, thus engraving intricate patterns, trademarks, and text. Laser marking machines are primarily used in applications requiring greater precision and finer details. Applications include electronic components, integrated circuits (ICs), electrical appliances, mobile communications, hardware products, tool accessories, and precision instruments.
[0003] During the laser marking process, if a product is marked with the same code twice, it will result in duplicate codes, affecting the product output rate and making it difficult to control the product output. Utility Model Content
[0004] The purpose of this invention is to provide a laser coding anti-duplicate code device, which can avoid the problem of duplicate codes on products and affect the product yield.
[0005] This utility model provides a laser coding anti-duplicate code device, comprising:
[0006] A positioning chassis is provided, with a coding fixture on the upper end of the positioning chassis. A scanning unit is provided on one side of the coding fixture, and an industrial barcode scanner is provided on one side of the scanning unit. The scanning unit is connected to the coding device provided on one side of the positioning chassis via a wire, and the scanning unit is connected in series with a coding signal button.
[0007] Preferably, the scanning unit is a color sensing sensor.
[0008] Preferably, both the scanning unit and the industrial barcode scanner are supported by a positioning bracket provided on one side.
[0009] Preferably, the upper end of the positioning chassis is provided with multiple positioning holes, and the coding fixture, positioning bracket and coding equipment are all installed inside the positioning holes by positioning pins.
[0010] Preferably, the upper end of the coding fixture is provided with a positioning button that matches the upper slot of the coding part.
[0011] Preferably, the positioning bracket includes a T-shaped vertical frame fixed to the upper end of the positioning chassis and a height frame set on the upper end of the T-shaped vertical frame. A support tube is provided on one side of the height frame, and a support rod for installing and fixing the scanning unit is installed through the inside of the support tube. The support rod is inserted into the inside of the support tube.
[0012] Preferably, the height frame and the support tube are connected by a connecting shaft, and the connecting shaft is positioned by damping.
[0013] Preferably, the height frame is movably mounted on the upper end of the vertical rod of the T-shaped vertical frame and is fixed by a fastening threaded part installed on one side.
[0014] This utility model provides a laser coding anti-duplicate code device. A scanning unit is added to the coding equipment, and an independent power supply is provided to the scanning unit. The scanning unit is connected in series with the coding signal button. The scanning unit is set to a normally closed state, remaining closed when a QR code is detected and normally open when no QR code is detected. When the scanning unit is normally open, it allows the output of a 24V electrical signal to the coding equipment for coding. When the product has already been coded, the scanning unit detects the QR code and returns to the normally closed state. At this time, even if the coding button is pressed, the circuit will not close, and no electrical signal will be output to the coding equipment, thus preventing duplicate coding. The system can automatically identify the coding status of the product and only allow coding operation when the product has not been coded, effectively solving the problem of duplicate coding. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0017] Figure 2 This is a schematic diagram of the positioning bracket structure according to an embodiment of the present utility model.
[0018] Figure 3 This is a schematic diagram of the coding fixture structure according to an embodiment of the present utility model.
[0019] Figure 4 This is a diagram of a color sensor system according to an embodiment of the present invention.
[0020] Figure descriptions: 100, positioning chassis; 200, coding fixture; 210, positioning button; 300, scanning unit; 400, industrial barcode scanner; 500, positioning bracket; 510, T-shaped vertical frame; 520, height frame; 530, support tube; 540, fastening threaded part; 550, support rod. Detailed Implementation
[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0022] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a laser coding anti-duplicate code device.
[0023] like Figures 1-4 As shown, this utility model embodiment provides a laser marking anti-duplicate code device, including a positioning base 100, a marking fixture 200 for supporting marking parts is provided on the upper end of the positioning base 100, a scanning unit 300 for scanning the parts on the upper end of the marking fixture 200 is provided on one side of the marking fixture 200, an industrial barcode scanner 400 for scanning the parts is provided on one side of the scanning unit 300, the scanning unit 300 is connected to the marking equipment provided on one side of the positioning base 100 through a wire, and the scanning unit 300 is connected in series with the marking signal button.
[0024] The scanning unit 300 is a color sensing sensor.
[0025] A color sensor is installed on the coding equipment, with an independent power supply. The color sensor is connected in series with the coding signal button. The color sensor is set to a normally closed state, remaining closed when a QR code is detected and normally open when no QR code is detected. When the color sensor is normally open, it allows the output of a 24V electrical signal to the coding equipment for coding. When the product has already been coded, the color sensor detects the QR code and returns to a normally closed state. At this time, even if the coding button is pressed, the circuit will not close, and no electrical signal will be output to the coding equipment, thus preventing duplicate coding. The system can automatically identify the coding status of the product and only allow coding operation when the product has not been coded, effectively solving the problem of duplicate coding.
[0026] Both the scanning unit 300 and the industrial barcode scanner 400 are supported by a positioning bracket 500 on one side, which facilitates the support of the scanning unit 300 and the industrial barcode scanner 400.
[0027] The upper end of the positioning chassis 100 is provided with multiple positioning holes. The coding fixture 200, the positioning bracket 500 and the coding equipment are all installed inside the positioning holes through positioning pins. The positions of the coding fixture 200, the positioning bracket 500 and the coding equipment can be adjusted according to the usage requirements, making them more flexible.
[0028] The upper end of the marking fixture 200 is equipped with a positioning button 210, which matches the upper slot of the marking part to facilitate the positioning of the marking part.
[0029] The positioning bracket 500 includes a T-shaped vertical frame 510 fixed to the upper end of the positioning base 100 and a height frame 520 set on the upper end of the T-shaped vertical frame 510. A support tube 530 is provided on one side of the height frame 520. A support rod 550 for installing and fixing the scanning unit 300 is installed through the inside of the support tube 530. The support rod 550 is inserted into the support tube 530.
[0030] The height frame 520 and the support tube 530 are connected by a connecting shaft, and the connecting shaft is positioned by damping. When installing the scanning unit 300, the damping positioning can easily adjust the relative angle between the height frame 520 and the support tube 530, so that the scanning unit 300 can be better aligned with the object to be scanned.
[0031] The height frame 520 is mounted on the upper end of the vertical rod of the T-shaped vertical frame 510 and is fixed by a fastening threaded part 540 installed on one side. After adjusting to a suitable height, it can be tightened by the fastening threaded part 540 for easy adjustment.
[0032] The working principle of a laser marking anti-duplicate code device is as follows: A color sensor is installed on the marking equipment, and an independent power supply is provided to the color sensor. The color sensor is connected in series with the marking signal button. The color sensor is set to a normally closed state, remaining closed when a QR code is detected and normally open when no QR code is detected. When the color sensor is normally open, it allows the output of a 24V electrical signal to the marking equipment for marking. When the product has already been marked, the color sensor detects the QR code and returns to the normally closed state. At this time, even if the marking button is pressed, the circuit will not close, and no electrical signal will be output to the marking equipment, thus preventing duplicate marking. The system can automatically identify the marking status of the product and only allow marking operation when the product has not been marked, effectively solving the problem of duplicate marking.
[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A laser coding anti-duplicate code device, characterized in that, include: A positioning chassis (100) is provided with a coding fixture (200) on its upper end. A scanning unit (300) is provided on one side of the coding fixture (200). An industrial barcode scanner (400) is provided on one side of the scanning unit (300). The scanning unit (300) is connected to the coding device provided on one side of the positioning chassis (100) via a wire. The scanning unit (300) is connected in series with a coding signal button.
2. The laser coding anti-duplicate code device according to claim 1, characterized in that, The scanning unit (300) is a color sensing sensor.
3. The laser coding anti-duplicate code device according to claim 2, characterized in that, Both the scanning unit (300) and the industrial barcode scanner (400) are supported by a positioning bracket (500) provided on one side.
4. The laser coding anti-duplicate code device according to claim 3, characterized in that, The upper end of the positioning chassis (100) is provided with multiple positioning holes, and the coding fixture (200), positioning bracket (500) and coding equipment are all installed inside the positioning holes by positioning pins.
5. A laser coding anti-duplicate code device according to claim 4, characterized in that, The upper end of the coding fixture (200) is provided with a positioning button (210) that matches the upper slot of the coding part.
6. The laser coding anti-duplicate code device according to claim 5, characterized in that, The positioning bracket (500) includes a T-shaped vertical frame (510) fixed to the upper end of the positioning base (100) and a height frame (520) set on the upper end of the T-shaped vertical frame (510). A support tube (530) is provided on one side of the height frame (520). A support rod (550) for installing and fixing the scanning unit (300) is installed through the inside of the support tube (530). The support rod (550) is inserted into the support tube (530).
7. The laser coding anti-duplicate code device according to claim 6, characterized in that, The height frame (520) and the support tube (530) are connected by a connecting shaft, and the connecting shaft is positioned by damping.
8. A laser coding anti-duplicate code device according to claim 7, characterized in that, The height frame (520) is movably mounted on the upper end of the vertical rod of the T-shaped vertical frame (510) and is fixed by a fastening threaded part (540) installed on one side.