Bundles of neutral borosilicate or soda-lime glass tubes are automatically unpacked, separated, oriented, and conveyed. Bent or cracked tubes are removed, and individual tubes are steadily delivered to the heating station. The storage capacity of the loading system exceeds 5,000 tubes and supports variable-frequency linked speed control.

After entering the bottle forming equipment, the glass tubes go through heating, stretching, cutting, neck forming, and molding processes in sequence.

The main machine heats glass tubes in sections at 1200–1450℃. Through stretching, cutting, neck forming, and mold shaping, the bottle mouth, body, and bottom of vials or oral liquid bottles are formed in one step.

The servo system precisely controls wall thickness uniformity. The bottle mouth dimensional tolerance can reach ±0.03mm, ensuring compatibility with subsequent crimp sealing.

High-speed vision cameras are used for inspection. Inspection items include bottle height, outer diameter, inner mouth diameter, wall thickness, and bottom concavity. Bottles with dimensional deviations are automatically rejected, and inspection data is stored in real time for traceability.

The furnace adopts segmented temperature control, with constant-temperature annealing at 580–620℃ for 2–3 hours. A slow gradient cooling process eliminates internal stress generated during high-temperature forming, preventing cracking during subsequent cleaning or sterilization.
The furnace is fully enclosed with hot-air circulation. Clean hot air protects the bottle surface and reduces dust contamination.

The bottles undergo visual inspection for 77 types of defects, including cracks, bubbles, black spots, stones, chipped bottle mouths, uneven bottle bottoms, and glass particles. Defective products are automatically separated and collected, while qualified products enter the buffer bottle arranging system.

Qualified bottles are neatly arranged by vacuum suction robotic arms and then conveyed to the automatic carton packaging machine, producing bare bottle finished products for export pharmaceutical packaging customers.

The system automatically completes counting, paper box packing, box sealing, outer carton labeling, and palletizing. Each carton is assigned a unique traceability QR code, recording the bottle forming machine, batch number, and production time.

All defective glass bottles generated during the bottle forming process are uniformly crushed. The glass cullet is recycled back to the remelting workshop for reuse, reducing raw material loss.