The heat sealing production process of urine bags

The heat-sealing production of urine bags requires precision equipment to achieve sealing and structural stability. The core process is as follows:

Material Feeding and Leveling
Multiple rolls of material are fed simultaneously, driven by servo motors. During the process, air is injected to expand the material, facilitating subsequent cutting.
Rubber rollers level the material to eliminate wrinkles, ensuring a smooth surface for heat sealing.

Printing and Catheter Installation
Chain transmission moves the material to the printing station, where brand logos, capacity scales, and other markings are printed.
Robotic arms automatically insert and secure the catheter, ensuring precise positioning and a firm connection to the bag.

High-Frequency Welding
The high-frequency station uses electromagnetic induction heating to locally melt and fuse the material, forming a sealed structure.
Key parameters—temperature, pressure, and time—are adjusted based on material properties to prevent burn-through or weak seals.

Hanger Welding and Separation
The bag body is automatically transported to the hanger welding station, where the hanging structure is heat-sealed.
A cutting device separates the continuously produced bags into individual units while reorienting them for subsequent inspection.

Quality Inspection and Sorting
The inspection station conducts pressure tests and capacity calibration, automatically identifying defective products (e.g., air leaks, scale deviations).
A collection system sorts qualified and defective products, which are then manually packed into boxes and stored.