An online detection method of bottle preform
By introducing clean compressed gas into the preform to cause it to expand, and combining this with a flexible limiting mechanism and visual inspection, the problem of low preform detection accuracy was solved, enabling effective identification of micro-cracks and uneven wall thickness, thus improving the quality of the finished bottle.
CN122409685APending Publication Date: 2026-07-17CHONGQING QIANZHIXING TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING QIANZHIXING TECHNOLOGY CO LTD
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies have low precision in preform detection, making it particularly difficult to detect minute cracks or uneven wall thickness defects in unstressed states, which may lead to leakage or explosion of finished bottles.
Method used
By introducing clean compressed gas into the preform to cause it to expand radially, the stress state of filling is simulated, and bottle defects are identified by combining a flexible limiting mechanism and visual inspection.
Benefits of technology
It significantly improves the accuracy of preform inspection, effectively detecting minute cracks and uneven wall thickness defects, thus ensuring the quality of finished bottles.
✦ Generated by Eureka AI based on patent content.
Abstract
本发明公开了一种瓶胚的在线检测方法，包括以下步骤：将待检测的瓶胚置于连续运转的输送机构的瓶托治具上；驱动定位阻挡机构将所述瓶托治具或瓶胚定位于所述检测工位；通过竖直驱动装置驱动充气头沿竖直方向向下移动，使所述充气头前端的柔性密封圈贴合于瓶胚的瓶口端面；使瓶胚的瓶身在内部气压作用下发生径向向外膨胀变形；设置于检测工位瓶身两侧的柔性限位机构对瓶胚的瓶身实施侧向限位；瓶胚内部气压达到所述预设压力范围并保持稳定的状态下，通过至少一个工业相机对处于膨胀姿态的瓶胚的瓶身区域进行图像采集，获取瓶身图像数据；将采集到的瓶身图像数据传输至图像处理单元。解决了现有技术瓶胚检测精度低的技术问题。
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