In the fields of biomedicine, experimental research, vaccine storage, etc., freezing tube is an essential consumable. It is used for the cryogenic storage of cells, blood, DNA samples and pharmaceuticals, which requires high sealing. Freezing tube automatic capping machine is an intelligent equipment for capping freezing tubes, which can automatically complete a series of operations such as cap conveying, precise capping, torque detection, sealing check, etc., to ensure that the freezing tubes meet the requirements of airtightness, leakage prevention and sterility. The equipment adopts PLC control system and high-precision servo motor to ensure the consistency of capping, and can be adapted to different specifications of frozen storage tubes.

　　I. Work flow of automatic capping machine for frozen storage tubes

　　1. Automatic loading and capping: Vibrating plate or robot is used to automatically convey the caps to the specified position to avoid manual contamination. The cap is accurately positioned through the guide rail to ensure the stability of capping.

　　2. Capping operation: Servo motor drives capping, with precisely adjustable torque, adapting to different specifications of frozen storage tubes. Fast capping speed ensures continuous and stable operation of the production line.

　　3. Capping detection and rejection: visual sensor or laser detection is adopted to ensure that the capping is tight and free from deviation. When abnormal capping is found, such as loose, skewed, not tightened, the unqualified products will be rejected automatically.

　　4. Finished product conveying and data recording: Qualified frozen storage tubes enter the automatic packaging or cartoning process to improve the overall production efficiency. The equipment can record the production data and support quality traceability and remote monitoring.

　　Advantages of automatic capping machine for frozen storage tubes

　　1. Precise capping and stable sealing performance: adopting high-precision torque control to ensure consistent sealing of each frozen storage tube. Ensure that the samples are preserved for a long time in the ultra-low temperature (below 80℃) environment without leakage or contamination.

　　2. High efficiency to meet large-scale production: the equipment can realize 50200 cryopreservation tubes capping per minute, which greatly improves the production efficiency. It can support 24-hour continuous operation to meet the batch production requirements of biopharmaceutical enterprises.

　　3. Aseptic operation, reduce the risk of contamination: the structure of the equipment adopts food-grade stainless steel, in line with GMP clean requirements. The capping process is fully closed to avoid artificial contact pollution.

　　4. Intelligent detection, improve product qualification rate: vision sensor + laser measurement, automatically reject the capping of unqualified products, to ensure that the quality of finished products to reach more than 99.9%. Adjustable capping strength, suitable for different specifications of cryopreservation tubes, improve the applicability of the equipment.

　　As an important equipment in modern biomedical, laboratory consumables and vaccine storage industry, the automatic capping machine for cryopreservation tubes greatly improves the production efficiency and product quality by virtue of the advantages of high-precision capping, intelligent detection and aseptic operation. With the rapid development of genetic testing, biomedicine and vaccine research and development, cryopreservation tube automatic capping machine has become an indispensable key equipment for automated production in the industry, helping enterprises to move towards a higher level of intelligent manufacturing era.