Barcode scanners are not a high-tech industry, but their manufacture involves many meticulous processes. Each step of the production process must be coordinated to ensure that quality requirements and time control are efficiently achieved. In this article, we will discuss the barcode scanner manufacturing process in detail.
Barcode Scanner Manufacturing Process Overview
The diagram below shows the manufacturing process of a typical barcode scanner factory in China. We follow this process and provide seamless service to our customers to help them focus on brand building, marketing and customer relationship management.
The key steps in the barcode scanner manufacturing process include raw material sourcing, component production, assembly, quality inspection and final testing. Each step is carefully designed to ensure efficient production and product quality.
1.Selection and procurement of raw materials
1.1 Optical component materials
Laser Source: Commonly used HeNe lasers produce red laser light from helium and neon gas, which is low cost and easy to detect. Handheld barcode scanners are often equipped with miniature HeNe laser tubes as a stabilized light source.
Lenses and Mirrors: Made of highly polished glass or plastic, some surfaces are coated to optimize the reflection of red wavelength light. High-quality optical materials ensure that the light is precisely focused, improving barcode reading accuracy.
1.2 Electronic component materials
Photodiode: mainly using silicon or germanium semiconductor, can conduct current under light, its sensitivity and response speed directly affect the barcode detection effect.
Control chip: as the core component, it is responsible for processing the electrical signal of photodiode and converting it into digital information, and its performance determines the processing speed and decoding ability of the scanner.
1.3 Shell material
Barcode scanners are usually made of ABS+PVC to ensure structural strength. The optical window uses glass or high tenacity plastic to maintain good optical transparency while preventing dust and dirt from affecting light transmission.
2.Design Phase
2.1 Optical system design
Scanning principle determination: according to the differences in light reflection of different color stripes, select the scanning method, such as CCD scanning, laser scanning or holographic scanning, etc., each of which has its own specific optical design requirements.
Optical path design: Take laser scanner as an example, design the emitting, reflecting and receiving paths of the laser to ensure that the light accurately irradiates the barcode and effectively collects the reflected light.
2.2 Electronic circuit design
Signal processing circuit design: design the circuit that can amplify, filter and digitize the weak signal of the photodiode, and match with the control chip to ensure accurate signal transmission.
Power supply circuit design: Provide stable power supply for each component, consider power consumption requirements, design efficient power management circuit to extend battery life or ensure stable operation of the device when external power supply.
2.3 Mechanical structure design
Shell design: ergonomic, convenient for handheld operation, reasonable layout of internal space, easy to assemble and maintain.
Scanning head structure design: the movable scanning head needs to ensure smooth and stable movement.
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3.Manufacturing and assembly process
3.1 Optical components manufacturing
Laser tube manufacturing: Strict control of gas purity, pressure and electrode precision to ensure laser performance.
Lens and Mirror Manufacturing: Materials are processed by grinding and polishing, and some parts need to be coated to enhance optical performance.
3.2 Manufacture and installation of electronic components
Photodiode Manufacturing: Semiconductor process is adopted to manufacture and qualified products are screened through strict performance tests.
Control Chip Manufacturing and Installation: Chips are manufactured through photolithography and other processes, accurately soldered to PCB boards during assembly, and connected to other components to form complete circuits.
3.3 Mechanical components manufacturing and assembly
Shell manufacturing: the shell is sanded and painted after molding by stamping, and the plastic parts are molded by injection molding.
Assembly process: optical components are installed first, then connected to the electronic circuit board, and finally the internal components are put into the housing, batteries and buttons are installed, and debugging and testing are performed.
4.Testing and Quality Control
4.1 Performance Test
Scanning accuracy test: Using standard barcode samples, test under different angles, distances and lighting conditions to ensure that the scanner works accurately in real-world scenarios.
Scanning Speed Test: Detect the scanning speed to meet the rapid scanning needs, such as supermarket checkout scenarios.
Decoding ability test: Verify the decoding ability for different barcode standards (e.g. EAN, UPC, etc.).
4.2 Environment Test
Temperature test: test the performance stability in high and low temperature environments to ensure that the equipment works normally under various temperature conditions.
Humidity Test: Simulate high humidity environment to test the moisture-proof performance and ensure that the electronic components are not affected by humidity.
Impact resistance test: simulate falling and collision, test the mechanical structure and internal components of the impact resistance.
4.3 Quality control and testing process
Raw material testing: Strictly check the specification and performance of raw materials before warehousing to prevent unqualified materials from entering the production process.
Sampling inspection during production: Regular sampling inspection of semi-finished products, checking the installation precision and welding quality, and timely detection of problems.
Full inspection of finished products: carry out comprehensive performance and quality inspection after each scanner is assembled and labeled after passing.
5.Packaging and factory
5.1 Packaging Design
Protection Design: Cushioning materials such as foam are used to ensure that the box size fits the scanner and provide transportation protection.
Labeling and instructions: The box is printed with product information and comes with a user manual for ease of use.
5.2 Factory Inspection and Transportation
Final Inspection: Sample inspection before leaving the factory to check the appearance, accessories and performance.
Transportation Arrangement: Choose the appropriate transportation method according to the order to ensure that the products are protected in transportation and delivered safely.
Check out our barcode scanner blog to learn more about the barcode scanner manufacturing process and barcode scanner OEM services.Please contact us for barcode scannner manufacturing services.
Phone: +86 07523251993
E-mail: admin@minj.cn
Official website: https://www.minjcode.com/
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Post time: Apr-08-2025