Automatic Round Bottle Labeling Machine
The automatic round bottle labeling machine is a core piece of equipment in packaging automation designed for cylindrical bottles. It can complete the entire process of bottle separation, positioning, labeling and pressing unattended, and is widely used in pharmaceuticals, food, daily chemicals and other industries.
Core Working Principle & Process
- Automatic Bottle Sorting & Conveying: Bottles are equally spaced by bottle management and separation mechanisms, then fed to the labeling station via a conveyor belt. Top-pressing and bottle-holding devices prevent bottle shaking.
- Label Peeling & Feeding: Rolled self-adhesive labels go through unwinding, tension control and guiding. At the peeling plate, the backing paper changes direction, allowing labels to be peeled off and delivered by labeling rollers with air-blow assistance.
- Precise Labeling: Photoelectric and servo systems detect bottle positions, synchronously drive labeling and bottle rotation, ensuring labels are accurately applied to the bottle surface.
- Label Pressing & Inspection: Elastic pressing belts and rollers smooth labels to avoid bubbles and wrinkles. Optional visual inspection is available to reject defective products with missing or skewed labels.
- Post-Labeling Conveying: Labeled bottles are transferred to the next process (e.g., coding, cartoning).
Core Components
Unwinding wheel, buffer wheel, guide roller, drive roller, winding wheel, peeling plate, labeling roller, bottle separation mechanism, conveyor line, PLC + touch screen control system, sensor group.
Main Functions & Features
- Wide Application Compatibility: Supports single-label, front-and-back double-label, neck-label and full-wrap labeling. Compatible with round bottles and slightly tapered bottles made of glass, PET, metal and other materials.
- High Precision & Stability: Labeling accuracy typically reaches ±0.5~±1 mm. Servo and photoelectric closed-loop control enables no-labeling without objects and automatic shutdown when labels run out.
- High Efficiency & Flexibility: Standard speed: 20~60 pcs/min, high-speed models up to 100+ pcs/min. Parameters are adjustable with one touch on the touch screen, allowing fast size changeover.
- Compliance & Optional Configurations: Body mostly made of stainless steel/aluminum alloy, meeting GMP standards. Optional configurations include coding machines, inkjet printers (for printing production dates and batch numbers), visual inspection, automatic bottle unscramblers and assembly line docking interfaces.
Typical Application Industries
- Pharmaceuticals: Vials, infusion bottles, medicine bottles
- Food & Beverage: Red wine, cans, beverage bottles
- Daily Chemicals & Cosmetics: Shampoo bottles, lotion bottles, essential oil bottles
- Chemicals: Reagent bottles, pesticide bottles, etc.
Selection Key Points
- Bottle dimensions (diameter, height, taper)
- Label specifications (length, width, backing material, spacing)
- Capacity requirements (pcs/min)
- Labeling type (single-label, double-label, neck-label, full-wrap)
- Environmental requirements (cleanliness, explosion-proof, waterproof)
- Supporting needs (coding, inspection, production line docking)
Daily Maintenance Suggestions
- Regularly clean the conveyor line, labeling rollers and peeling plate to avoid residual glue affecting accuracy.
- Check label roll tension and sensor sensitivity.
- Lubricate moving parts and replace wearing parts according to the manual.
- Keep the environment dry and dust-free to prevent electrical failures.
