Automatic Pallet Wrapping Machine with Rotating Turntable
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Pre-stretched stretch film is applied to the pallet as the turntable rotates.
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Supply Scope:
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1.1 Mast – 1 set
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· 2800mm height, customized based on packing height and conveyor height
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· Film carriage included
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1.2 Film Carriage – 1 set
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· Positioned at the mast front
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· Film specs: 14–35μm thickness, 500mm width, 76mm ID, 240mm OD, max 13.8kg
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· Sinolion standard unit, powered pre-stretch ratio 250% (1:3.5)
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· SEW motor, 0.37kW
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· Chain-driven lift, offering stable and reliable operation
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1.3 Turntable – 1 set
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· 600mm height
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· 2000mm diameter
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· Roller conveyor fitted (76mm dia. rollers, max drive 18m/min)
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· Max turntable speed: 15rpm
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· Slew bearing drive, max load 2000kg
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1.4 Film Delivery Device – 1 set
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· Automatic cutting and clamping after wrapping cycle
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· Hot melt wire cuts film; heating block seals film tail onto pallet
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· Pneumatics: SMC
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1.5 Control System – 1 set
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· Sinolion standard cabinet
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· PLC based system with licensed software
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· Backup and printed block diagrams of PLC program to be supplied
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· Major components: HMI, PLC panel, power panel, VFD panel, field box, E-stop, photocell, proximity sensor, cooling fans,
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control switch, audible/visual alarm
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· Control and power panels located in control room; operator panel, field box, emergency stop included
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· HMI programmable for wrap layers, wrap cycles, top wrap duration
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· System integrates with customer’s control line for smooth DMS coordination
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· Safety logic can be added via PLC extension module
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· Photoelectric sensor auto-detects pallet dimensions
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· One-way valve in air line prevents backflow during pressure fluctuation
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· Individual speed adjustment for turntable, conveyor, film carriage lift, and film feed
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· Alarm on film break or depletion
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· Selector switch for pause/manual/auto modes
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· Compressed air to be supplied by customer to stop valve inlet
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· Self-diagnostics: audible and visual alarm upon fault
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· PLC CPU: 15% spare capacity; I/O points: 15% spare capacity