Shrink Wrapping Machine For Bottles

Before entering the shrink wrapping machine for bottles, bottles must be grouped into a specific configuration-such as 2×3, 4×6, or 3×4. At high production line speeds, simply bumping bottles into position is not feasible, as it could cause breakage or tipping. The equipment utilizes a servo-driven bottle-dividing mechanism and low-friction plastic modular conveyor belts to smoothly distribute single-lane bottles into multiple channels, creating precise groupings without slowing down upstream filling equipment.

Once the bottle groups are arranged, the process moves to the film-wrapping stage. Two primary methods are used in industrial production:
• Sleeve Wrapping: This method wraps the film around the top, bottom, and front/back of the product group, leaving circular openings on the sides. Due to lower film consumption, this method is widely used for products such as bottled water and soft drinks.
• Full Enclosure Wrapping: This method completely encases the product group using film overlapping or side-sealing structures. It offers superior protection against dust and moisture, making it suitable for products requiring higher levels of packaging protection.

The heat-shrink tunnel is a critical component for achieving consistent, stable packaging results in shrink wrapping machine for bottles.
• Heat Shrink Principle: Industrial production lines typically utilize Low-Density Polyethylene (LDPE) heat-shrink film, which generally shrinks at temperatures between 160°C and 200°C.
• Uniform Hot Air Control: Uneven hot air distribution within the shrink tunnel can lead to package deformation, film wrinkling, or insufficient shrinkage in certain areas. Modern equipment employs internal circulation fan systems to ensure hot air acts uniformly across the package surface, creating a tight, form-fitting wrap that enhances overall packaging stability.