In the wave of modern electronic devices moving towards “higher pixels and smaller size,” the assembly process of camera modules faces extreme challenges. As the “eyes” of the module, the lens’s fixing precision directly determines image quality.
Among various fixing methods, adhesive dispensing machine has become the mainstream choice due to its suitability for irregular shapes, low stress, and ability to provide sealing protection. However, achieving highly reliable and contamination-free bonding through needle dispensing within a microscope-level operating space is a challenge facing every process engineer.
Adhesive Dosage and Consistency Control is Difficult: Camera module structures are becoming increasingly multi-layered and high-density. Due to variations in adhesive viscosity or air pressure fluctuations, the applied adhesive lines may be uneven in thickness. This not only affects sealing performance (waterproofing and dustproofing) but also causes uneven stress on the lens during curing and shrinkage, resulting in optical axis shift (tilt), causing one side of the image to be clear while the other is blurry.
Automatic In-line PCB Glue Dispensing Machine SEC-DH400L
Second Intelligent In-line Glue Dispensing Machine SEC-DH400L adopts an integrated mineral casting design, with ultra-high precision and super stability, powerful expansion capabilities, and can realize ion cleaning, dispensing, detection, UV exposure and other functions;
Adopting a gantry structure, it can bear large loads, stable structure, and a powerful CCD visual positioning system, which can meet the requirements of Mark point positioning, edge positioning, and 3D scanning positioning; strong scalability, and can expand AOI detection 3D detection, UV exposure curing and other functions;
Strong platform compatibility, contact and non-contact dispensing, single-head and multi-head synchronous dispensing, automatic compensation and adjustment of double-head spacing, five-axis dispensing function based on needle A/R displacement, etc.
Achieving highly reliable dispensing and bonding of camera module lenses is a system engineering project. It’s not just about buying an expensive dispensing machine; it requires a three-pronged approach: ” precision needle (hardware) ” + ” intelligent algorithm (control) ” + ” structural optimization (design) “.
https://secondintelligent.com/industry-news/highly-reliable-adhesive-bonding-of-camera-module-lenses/
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