-
E-mail
13961181718@sina.com
-
Phone
13915061206
-
Address
North Gate, 6-10 Chang'an Road, Hutang Town, Wujin District, Changzhou City
Changzhou Jianzhi Machinery Factory
Process flow of large-scale fully automatic indwelling needle sticker manufacturing machine
Date: 2025-12-27Read: 24
The large-scale fully automatic indwelling needle sticker manufacturing machine integrates material processing, precision coating, lamination, die-cutting, and packaging, and its core process aims to achieve efficient and sterile indwelling needle sticker production. This process covers the entire process from raw material preparation to final product, ensuring that the product meets medical grade standards and is suitable for the fixation needs of intravenous catheters. Below is a step-by-step explanation of the key steps.
1、 Detailed process steps
1. Raw material preparation and pretreatment
Substrate treatment: Medical grade non-woven fabric or release paper is used as the substrate, which needs to be subjected to electrostatic precipitator and tension adjustment to avoid fiber impurities affecting the subsequent coating effect.
Adhesive preparation: Select low allergenic medical adhesives, preheat to a suitable temperature to optimize fluidity, and reduce the generation of bubbles during the coating process.
Environmental control: Operate in a 100000 level clean room to ensure air cleanliness and prevent microbial contamination.
2. Precision coating process
Double sided coating: By using a mesh roller or scraper system, the adhesive is evenly applied to the surface of the substrate, and the coating thickness is controlled at the micrometer level to avoid overflow or uneven thickness.
Drying and curing: Hot air circulation or infrared drying is used to preliminarily cure the adhesive layer, ensuring stable viscosity and no residual solvents.
Online detection: Real time monitoring of coating uniformity, using a visual system to identify defects such as bubbles or overspray, and adjusting parameters in a timely manner.
3. Composite and lamination
Material Composite: Composite the coated substrate with a breathable film or protective layer, and apply controllable pressure through a compression roller to enhance the interlayer bonding force.
Temperature control: The composite temperature needs to be accurately matched with the material characteristics to prevent thermal deformation or poor adhesion.
Tension management: The winding tension is slightly lower than the unwinding tension to reduce material deformation and ensure flatness.
4. Die cutting and molding
Round knife die-cutting: Use a high-speed rotating round knife to cut the composite material into the shape of retained needle stickers, with smooth edges and no burrs, suitable for different specifications.
Waste recycling: Automatically separate and recycle waste materials to reduce production costs.
Accuracy verification: Regularly calibrate die-cutting tools to ensure that dimensional errors are within the allowable range.
5. Sterilization and packaging
Sterilization treatment: Ethylene oxide or radiation sterilization is used to ensure that the product is in a sterile state and complies with medical regulations.
Automated packaging: Place finished product patches into sterile bags or boxes, and ensure packaging integrity through heat sealing or sealing technology.
Quality sampling: Randomly select samples for microbiological testing and viscosity evaluation to ensure batch consistency.
6. Auxiliary process (optional)
Coating Enhancement: Some products are coated with a lubricating layer on the surface to reduce skin friction during use and improve comfort.
Passivation treatment: Chemical passivation of metal components to enhance corrosion resistance and extend equipment life.
Customized design: Adjust the shape or fixed structure of the patch according to clinical needs, such as cutting the edge of the patch to fit the joint area.
2、 Process optimization and quality control
Efficiency improvement: Integrated online thickness gauge, dynamically adjust coating amount, reduce scrap rate; Switch to energy-saving mode during non production periods to reduce energy consumption.
Safety measures: Operators are required to wear protective equipment, which should be equipped with emergency stop buttons and fire alarm systems. Solvent storage should be kept away from sources of fire.
Fault handling: In case of sudden shutdown, immediately troubleshoot power or sensor issues; Glue leakage should be treated with absorbent cotton to avoid contact with electrical components.
Record management: Establish standardized operation logs to record parameter adjustments and testing data for easy traceability and improvement.
Process mnemonic: base material dust removal and coating, composite die-cutting to check accuracy; Sterilization packaging is strictly controlled, and safety optimization is not compromised.