Hot melt sensitive pressure adhesive coating and lamination line, for coating, lamination, peeling, rewinding
Body material application: PET, PVC, paper etc.
Machine Features
This machine incorporates microcomputer PLC, touch screen control, simple operation and high automation
Using wear-resistant alloy steel coating head, coating control accuracy and service life are greatly improved
The overall translation type coating adjustment bracket is incorporated, and the repeat positioning accuracy is precise
Automatically track and display and store the amount of glue
The no. 1 unwinding is equipped with a web guiding device, and the high-performance infrared sensor and electric controller ensure the neatness of the material roll
The heating temperature is all centrally controlled by PLC
The amount of glue supplied by the metering pump is based on the coating width input by the worker, and the amount of glue supplied will be automatically calculated and running
Parameters
Coating method: slot die coating
Maximum coating width: 1600 mm
Coating weight: 20 to 200 gsm
Uniformity: ≤10%
Mechanical speed: 1 to 20 meters per minute
Coating speed: the coating speed is determined according to the coating amount, adhesive viscosity, sol temperature and substrate
Roller length: 1750 mm
Maximum unwinding diameter: 1250 mm
Maximum rewinding diameter: 950 mm
Unwinding tension: ≤600 N
Film unwinding tension: ≤200 N
Winding tension: ≤600 N
Glue melting speed: 310 kg/hour
Glue input hose: teflon tube
Temperature: room temperature~230 °C
Mechanical power: about 40 kW
Installed power: about 110 kW
Power supply: 440 volts, 60 Hz
Main Components Description
Machine Frame
No. 1 unwinder is made of square steel and channel steel plates, welded
The upper frame is made of 30 mm steel plate as a whole and supported by steel pipes
The transmission cover incorporates 1.5 mm iron plate
The second unwinding rack is installed on the upper platform
Unwinding Unit
The unwinding incorporates hydraulic feeding and pneumatic clamps: 2 sets
No. 1 unwinding tension incorporates 200 N.m magnetic powder brake: 1 set
No. 2 unwinder incorporates 100 N.m magnetic powder brake: 1 set
No. 1 unwinder tension control incorporates manual adjustment device: 1 set
No. 2 unwinder tension control incorporates automatic adjustment device: 1 set – Italy (RE)
No. 1 & no. 2 unwinder shafts use 3" air shafts: 4 pieces
The unwinding incorporates hydraulic lifting device: 2 sets
No. 1 & no. 2 unwinders all use EPC photo-cell web-guides: 2 sets
After unwinding, there is a splicing platform: 2 sets
Rewinding Unit
Incorporates single-station winding device
The winding is driven by a 7.5 kW motor, a total of 1 set
The drive motor incorporates variable frequency speed regulation
Tension control incorporates manual adjustment device, a total of 1 set
The rewinding shaft incorporates 3" air expansion shaft, a total of 2
Automatic control of winding length can also be manually controlled
Glue Melting Tank (310 kg/hour)
The shell incorporates channel steel and 2 mm square steel plate welding
The glue melting tank is made of aluminum alloy, with three layers of structure, and the inner wall is coated with anti sticking coating
Cast in heater is incorporated
The rubber conveying pump incorporates high temperature resistant precision metering gear pump
Equipped with external precision filter
The rubber conveying pump incorporates 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: 180 kg/h (EVA, 3000 centipoise, 165 °C)
Extrusion Slot Die
Diameter of extruder screw: Φ105 mm
L/D ratio of screw (L/D): 28:1
Lamination speed: 10 to 100 meters/minute
Main motor power: 15 kW frequency adjust speed
Barrel screw material 38CrMoA1A, nitriding, hardness HV≥970
Screw form: single type
Barrel heating: 15 kW stainless steel
Main reducer plastic extruder dedicated hardened gear reducer
Advance and retreat motor 1.5 kW
Die from hanger type flat die, lamination width 0.3 meters to 1.2 meters adjustable
Die material: 45#, internal and external surface hard chromium coating 0.04 to 0.06 mm
Die effective width: 1600 mm
Die heating form: heating plate
Network change: manually change
Glue Hose
Material: polytetrafluoroethylene
Inner diameter: 16 mm
Length: 5000 mm
Withstand voltage: 60 kg/m²
Maximum temperature: 210 °C
Heating power: about 700 watts
Coating Lamination System & Guide Rolls
Cloth coating head: it is made of high-temperature resistant alloy material and is subject to special heat treatment to prevent deformation. The cloth coating head is heated by electric heating. The reasonable arrangement of heating tubes makes the heating uniform and the temperature control accurate, reducing the thermal deformation of the metal
The cloth applicator adjusting bracket incorporates an integral translational structure, which is welded and processed from profiles and steel plates, and the main body is rigid
Coating roller: ¢ 320 mm steel roller chrome plated, equipped with a rotary joint, a total of 1 set
Cooling composite roller, ¢ 400 mm steel roller chrome plated, equipped with a rotary joint, a total of 1 set
Compound pressing roller: silicone rubber roller, 1 set in total
Guide roller: ¢ 120 mm aluminum surface anodized
Drive Unit
Coating roller motor: 2.2 kW, 1 set
Compound roll motor: 3.7 kW, 1 set
Glue conveying pump motor: 2.2 kW, 2 sets
Rewinding motor: 7.5 kW, 1 set
The rubber box has a gear reducer motor chain coupling
The main machine incorporates synchronous belt, chain and gear hybrid transmission
Pneumatic Control Unit
Coating head cylinder: ¢100 mm × 125, 2 pieces
Composite roller cylinder: ¢100 mm × 100, 2 pieces
Other pneumatic components: pressure regulating valve, manual valve, etc.
