Partition PU Sandwich Panel Machine

The partition polyurethane sandwich panel machine is an automated equipment system specifically designed for producing polyurethane sandwich panels for construction. The production line integrates various high-tech equipment and can achieve continuous and automated production from raw materials to finished products. The production line for partition pu sandwich panels usually includes core components such as metal sheet pretreatment system, foaming system, composite system, cutting system, packaging system, etc., which are precisely coordinated and operated through a computer control system.

sandwich panel machine

The pu sandwich panel machine can flexibly adjust parameters according to product specifications, producing sandwich panel products with different thicknesses (50-200mm), widths (standard 950-1150mm), and lengths (up to 16 meters). The operating speed of the production line can reach 3-8 meters per minute, and the daily output can reach 3000-5000 square meters, meeting the needs of large-scale construction projects.

Composition and functions of core equipment

• Metal sheet pretreatment system
  The metal sheet pretreatment system includes equipment such as uncoiler, leveler, cleaning machine, and glue coating machine. The uncoiler adopts a hydraulic expansion structure and can process color steel plate coils with a thickness of 0.4-1.0mm, with a maximum coil weight of up to 10 tons. The leveling machine uses multi roll precision straightening to eliminate internal stress in the steel plate and ensure that the flatness error of the plate surface is less than 0.5mm/m.
  The cleaning process adopts a fully automatic alkaline cleaning system, equipped with high-pressure spray and brush cleaning devices, which can effectively remove oil stains and impurities on the surface of the steel plate. The glue coating machine adopts a precision metering pump and double-sided coating design to ensure that the bonding strength between the polyurethane foam layer and the metal plate reaches above 0.15MPa.

• Polyurethane high-pressure foaming system
  The polyurethane high-pressure foaming system is the core of the production line, consisting of a high-pressure foaming machine, temperature control system, mixing head, etc. Modern foaming machines use servo motors to drive metering pumps, with a metering accuracy of ± 0.5% and an adjustable flow range of 5-100kg/min. The temperature control system adopts PID intelligent control, and the temperature fluctuation does not exceed ± 1 ℃.
  The high-pressure mixing head adopts a self-cleaning design, with a mixing pressure of up to 120-200 bar, ensuring thorough mixing of polyols and isocyanates. The latest designed swirl mixing head can shorten the mixing time of raw materials to 0.3 seconds and increase foaming efficiency by 20%.

• Continuous Composite Forming System
  The continuous composite forming system consists of a double track press, a temperature control platform, and a forming mold. The double track adopts hydraulic synchronous drive, with an adjustable pressure range of 0.1-0.5MPa, ensuring uniform thickness of the sandwich panel. The temperature control platform adopts a partitioned temperature control design, with a temperature control accuracy of ± 2 ℃.
  The molding mold is treated with a special coating, with a friction coefficient of less than 0.1, to ensure the surface smoothness of the board. Modern production lines are also equipped with online thickness detectors to monitor product thickness deviations in real time, with an accuracy of up to ± 0.1mm.

Intelligent control system

• PLC central control system
  The pu sandwich panel line adopts an industrial grade PLC control system, equipped with a touch screen human-machine interface of more than 10 inches, and can store more than 100 sets of process formulas. The system has a fault self diagnosis function, which can monitor more than 200 process parameters in real time with a response time of less than 50ms.

• Automated batching system
  The automated batching system includes components such as raw material storage tanks, measuring scales, and conveying pumps. Adopting dual measurement of mass flow meter and weighing sensor, the batching accuracy reaches ± 0.3%. The system can automatically adjust parameters such as raw material temperature and pressure to ensure stable foaming quality.

• Data Collection and Analysis System
  Modern production lines are equipped with MES manufacturing execution systems, which can collect production data in real-time and generate reports. The system is connected to the enterprise ERP system through OPC interface to achieve digital integration of production planning, quality traceability, equipment management and other functions.

Auxiliary equipment and technological innovation

• Automatic cutting system
  Adopting a servo driven dual saw cutting system with a cutting accuracy of ± 1mm. Equipped with an automatic dust removal device and waste recycling system, the cutting noise is below 75 decibels. The latest model adopts waterjet cutting technology, which can achieve irregular cutting without dust pollution.

• packaging system
  Automated packaging lines include flipping machines, laminating machines, and bundling machines. The laminating machine uses PE wrapping film, and the packaging speed can reach 10 meters per minute. The intelligent strapping machine can automatically adjust the strapping position and strength according to the length of the board.

• Energy saving and environmental protection technology
  The new production line adopts a heat recovery system, which can recover more than 80% of the curing heat energy. The exhaust gas treatment system includes activated carbon adsorption and catalytic combustion devices, with a VOCs removal rate of over 90%. The noise control adopts soundproof covers and shock-absorbing design, and the overall noise is controlled below 85dB.

Selection Guide

When choosing a production line for partition pu sandwich panels, the following factors should be considered:

• Capacity demand: small line (1000-2000 ㎡/day), medium line (3000-5000 ㎡/day), large line (over 6000 ㎡/day)
  

• Product specifications: Maximum/minimum thickness, width, length requirements
  

• Automation level: manual, semi-automatic, fully automatic
  

• Energy efficiency: Unit energy consumption (kWh/㎡)
  

• After sales service: spare parts supply, technical support response time

With the increasing demand for energy-saving building materials in the construction industry, the partition pu sandwich panel production machines are developing towards higher efficiency, intelligence, and environmental friendliness. In the future, devices will be more integrated into IoT technology to achieve remote monitoring and predictive maintenance, further improving production efficiency and product quality.