Hot melt sensitive pressure adhesive coating and lamination line, it has functions of coating, lamination, peeling, rewinding function.
Type of material application: PET, PVC, paper etc.
Process:
Machine Features
This machine incorporates microcomputer PLC, touch screen control, for simple operation and high automation.
Using wear-resistant alloy steel coating head, coating control accuracy and service life are greatly improved.
The overall type coating adjustment bracket is included, and the repeat positioning accuracy will be precise.
Automatically tracks and displays and stores the amount of glue, making the operation and use convenient and fast.
The first unwinding is equipped with a web guiding device, and a high-performance infrared sensor and electric controller to ensure the evenness of the material roll.
The heating temperatures are all centrally controlled by PLC.
The amount of hot melt supplied by the metering pump depends in the coating width to be input by the worker, and the amount of hot melt supplied will be automatically calculated and fed.
Technical Parameters
Coating method: slot die coating
Max. coating width: 2000mm
Coating weight: 20 to 200g/m2 (buyer requires 18 to 20GSM)
Uniformity: ≤10%
Mechanical speed: 1 to 100m/min
Coating speed: the coating speed is determined according to the coating GSM, the adhesive viscosity, the temperature and the substrate
Roller length: 1750mm
Max. unwinding diameter: 1200mm (1200kgs)
Max. rewinding diameter: 900mm
Unwinding tension: ≤600N
Film unwinding tension: ≤200N
Winding tension: ≤600N
Hot melt melting speed: 310kg/h
Hot melt input hose: Teflon tube
Temperature: room temperature~230°C
Mechanical power: about 40kW
Installed power: about 110kW
Power supply: ~440V, 60Hz
Air.6 to 0.8MPa
Water.15~0.4MPa circulating cooling water
Dimensions: 9000 (L) × 6800 (W) × 2300mm (H)
The amount of glue and the speed are tracked synchronously, and can also be adjusted independently.
Main Components: Machine Frame
First unwinder is made of square steel and channel steel plates welded.
The upper frame is made of 30mm steel plate as a whole and supported by steel square forms.
The transmission cover is 1.5mm steel plate.
The second unwinding rack is installed on the upper platform.
Main Components: Unwinding Unit
The unwinding includes hydraulic feeding and pneumatic clamps - 2 units.
First unwinding tension ncludes 200N.m magnetic powder brake - 1 unit.
Second unwinder includes 100N.m magnetic powder brake - 1 unit.
First unwinder tension control incorporates manual adjustment device - 1 unit.
Second unwinder tension control incorporates automatic adjustment device - 1 unit - Italy (RE).
First and second unwinders shafts are 3" diameter air shafts - 4 pieces.
The unwinding ncludes hydraulic lifting devices - 2 units.
First and second unwinders all use EPC photo-cell web-guides - 2 units.
After unwinding, there is a splicing platform – 2 units.
Main Components: Rewinding Unit
Incorporate single-station winding device.
The winding is driven by a 7.5kW motor, a total of 1 unit.
The drive motor is variable frequency speed regulation.
Tension control is manual adjustment device, a total of 1 unit.
The rewinding shaft is 3" diameter air expansion shaft, a total of 2 units.
Automatic control of winding length it can also be manually controlled.
Main Components: Hot Melt Melting Tank (310kg/h)
The frame is made of channel steel and 2mm square steel plate welding.
The hot melt melting tank is made of aluminum alloy, with three layers structure, and the inner wall is coated with anti sticking coating.
A cast in heater is incorporated.
The rubber conveying pump has high temperature resistant precision metering gear pump.
Equipped with external precision filter.
The rubber conveying pump is variable-frequency gear reducer motor for variable-frequency speed regulation.
The temperature is controlled by PID, and the upper and lower layers are controlled independently.
Maximum glue output: 180kg/h (EVA.3000 centipoise 165 °C)
Main Components: Hot Melt Conveying Hose
Material: polytetrafluoroethylene
Inner diameter: 16mm
Length: 5000mm
Withstand voltage: 60kg/m2
Maximum temperature: 210 °C
Heating power: about 700W
Main Components: Coating Lamination System & Guide Rolls
Coating stand: it is made of high-temperature resistant alloy material and is subject to special heat treatment to prevent deformation. The coating stand is heated by electric heating. The proper arrangement of heating tubes makes the heating uniform and the temperature control accurate, reducing the thermal deformation of the metal.
The coating stand adjusting bracket incorporates an integral transition structure, which is welded and processed from profiles and steel plates, the main body is rigid.
Coating roller: 320mm steel roller chrome plated, equipped with a rotary joint, a total of 1 unit.
Cooling composite roller, 400mm steel roller chrome plated, equipped with a rotary joint, a total of 1 unit.
Compound pressing roller: silicone rubber roller, 1 set in total.
Guide roller: 120mm aluminum surface anodized.
Main Components: Drive Unit
Coating roller motor: 2.2kW, 1 set
Lamination roller motor: 3.7kW, 1 set
Hot melt conveying pump motor: 2.2kW, 2 sets
Rewinding motor: 15kW, 1 set
Includes gear reducer motor chain coupling.
The main machine includes synchronous belt, chain and gear hybrid transmission.
Main Components: Pneumatic Control Unit
Coating head cylinder: 100mm × 125, 2 pieces
Composite roller cylinder: 100mm × 100, 2 pieces
Other pneumatic components: pressure regulating valve, manual valve, etc.
Electric Controls Specifications
No. 1 – coating inverter, 2.2kW, 1 piece
No. 2 – laminating inverter, 3.7kW, 1 piece
No. 3 – melting tank inverter, 2.2kW, 1 piece
No. 4 – re-winder inverter, 15kW, 1 piece
No. 5 – PLC controller, 1 set
No. 6 – touch screen, 10 inches, 1 piece
No. 7 – temperature controller (PID), 13 pieces
No. 8 – knob switches, several
No. 9 – heaters for coater, 400W, several
Reference Drawings
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