Automatic Washing Drying Press Line for Insulated Glass

Main Features

1. PLC control with touchscreen HMI: The entire Automatic Washing Drying Press Line for Insulated Glass is managed through a single control panel. Operators can set washing speed, drying temperature, press pressure, and argon fill duration from the interface. Real-time status indicators show each station's working condition, and alarm messages flag deviations from set parameters.
2. Automatic coated surface detection: Optical sensors positioned at the washing section entry identify Low-E and other coated glass surfaces. The system adjusts the brush pressure and water flow accordingly and can stop the line if a pane is loaded with the coated side facing the wrong direction.
3. Variable frequency brush drive: The brush roller motors are inverter-controlled, allowing the operator to adjust rotational speed based on glass condition. Heavier dirt loads can be addressed at lower conveyor speeds with higher brush torque, while standard cleaning runs at faster throughput.
4. Self-adapting air knife drying: The air knife assembly senses glass thickness and adjusts the gap automatically. The closed-loop hot air circulation system maintains consistent drying temperature, targeting a water-free surface across the entire glass area including edges.
5. Automatic spacer and glass positioning: Pneumatic alignment stops position the aluminum spacer frame and glass panes before the pressing stage. Alignment tolerance is maintained within ±1 mm to ensure consistent edge seal geometry.
6. Intelligent argon filling calculation: The control system reads the glass dimensions and spacer width to calculate the internal cavity volume, then adjusts the argon fill time and flow rate accordingly, avoiding both underfilling and gas waste.
7. Servo-driven press with integrated argon fill: The press unit combines inside assembly, pressing, and argon filling into one station. The servo drive controls the pressing force and parallelism, while the gas injection system targets a post-fill argon concentration of ≥90%.
8. Production compatibility: The line processes double glazed, triple glazed, Low-E coated, and laminated insulating glass units. Finished IGU thickness from 10 to 48 mm is accommodated by the adjustable press and conveyor guides.
9. Remote monitoring and online upgrades: An Ethernet port allows connection to the factory network. Authorized service personnel can access the PLC for remote diagnosis, parameter adjustment, and program updates, reducing the need for on-site service visits.

Technical Parameters

Line Configuration & Workflow

The Automatic Washing Drying Press Line for Insulated Glass is arranged as a straight-flow production line consisting of four interconnected stations. Glass sheets enter at the loading end and pass sequentially through each section:

• Loading and inspection section: Glass panes are placed manually or by loader onto the input conveyor. Optical sensors detect glass presence, dimensions, and coated surfaces before feeding into the washing zone.
• Washing and rinsing section: Rotating nylon brushes with adjustable pressure scrub both glass surfaces. Fresh water or recirculated water is sprayed through flat-jet nozzles, followed by a demineralized water rinse to prevent mineral residue.
• Drying section: Heated air is blown through air knives positioned above and below the glass path. The air knife gap adjusts to glass thickness automatically. A closed-loop heating system recirculates and reheats the air to maintain drying efficiency while managing energy consumption.
• Assembly and press section: The aluminum spacer frame, pre-filled with desiccant and coated with primary seal, is positioned on the glass pane. The second glass pane is aligned pneumatically. The servo-driven press brings the panes together at a controlled rate. Argon filling can be performed in this section through a probe inserted between the panes before final pressing.

Key Components

• PLC and HMI: Industrial-grade programmable controller with a color touchscreen. Stores multiple glass recipes with preset washing, drying, and pressing parameters.
• Brush rollers: Nylon bristle brushes with adjustable height. Variable frequency drive allows speed matching to glass dirt level and line throughput.
• Air knife assembly: Precision-ground air knives with automatic gap adjustment based on glass thickness input. Connected to a closed-loop hot air circulation system with heating elements and temperature sensors.
• Low-E detection sensors: Optical sensors that differentiate coated from uncoated glass surfaces at the washing section entry.
• Servo press unit: Ball-screw driven press with force feedback. Pressing speed, final pressure, and holding time are programmable.
• Argon filling system: Mass flow controller with integrated volume calculation. Fills through a retractable probe synchronized with the press cycle.

Manufacturer & Warranty

LEBULANG, operating as Lebulang Machine, has produced glass processing equipment at its Jinan factory since 1996. The Automatic Washing Drying Press Line for Insulating Glass is manufactured under an integrated system covering R&D, machining, assembly, and testing. Each line undergoes a full test run with actual glass before shipment, and a pre-delivery inspection report is provided. The standard warranty is one year on the main structure and components. Remote technical support, online program updates, and operation training are included. Spare parts are stocked and can be dispatched with regular freight shipments. On-site installation and commissioning can be arranged at additional cost.

FAQ

Q1: What kinds of insulated glass can this line produce?

A: It processes double glazed, triple glazed, Low-E coated, and laminated insulating glass units. The finished IGU thickness range is 10 to 48 mm, covering standard window, door, and curtain wall specifications.

Q2: Can the machine automatically identify coated glass?

A: Yes. Optical detection sensors at the washing section entry identify Low-E and other coated surfaces. The system can be set to alert the operator or pause the line if a pane is loaded with the coated side incorrectly oriented.

Q3: Is the drying effect completely water-free?

A: The closed-loop hot air circulation system combined with self-adapting air knives is designed to dry the glass surface and edges completely. The air knife gap adjusts to the glass thickness, and the recirculated air is continuously reheated to maintain consistent evaporation conditions.

Q4: Is daily maintenance complicated?

A: Key inspection points such as filters, brush rollers, and air knife nozzles are accessible through side panels and widened access doors. Routine tasks like filter cleaning and brush inspection can be performed without disassembling major sections. A maintenance schedule is provided in the operation manual.

Q5: Does it support long-term continuous operation?

A: The electrical and pneumatic components are selected for continuous industrial duty. The PLC, drives, motors, and sensors are sourced from major international suppliers. Under recommended maintenance intervals, the line is designed for 24-hour operation in high-volume insulating glass production.