Continuous NIR heat-bond-laminator
for heat-sealable adhesive tape

Use:

Lamination of heat-sealable adhesive tape on elastomer rubber profiles, such as weather strips.

Online adhesive-tape lamination subsequent to the extrusion line or offline from a coil.

Machine Performance:

Continuously-adjustable lamination speed up to 30 m/min (e.g. tape of 8 mm in width) due to high-efficiency NIR heating technology (high energy efficiency).

Controlled production process due to closed-loop technology with direct temperature sensing of the adhesive tape and the rubber profile by pyrometer with visible light spot.

Fully-automatic adjustment of process parameters in case of extrusion-speed variations (stable production process).

Machine Design and Functional Description:

The basic machine consists of a stable, self-supporting welded steel construction on four locking lift rolls. This construction allows for flexible machine operation at different production sites. Connections for electrical equipment, pneumatic equipment and exhaustion are plug-in connections. Thus, installation and placing into operation at a different production site can be carried out within shortest time.

The transport units for tape transport, profile transport, lamination system and heating units are modularly arranged on a base plate. Each unit can be individually adapted to different products (tape width, profile shape).

Profile transport is carried out by transport units, which are adapted to the profile shape. The exchange of these transport units can be carried out with a minimum need of tools within shortest time. Thus, extremely short set-up times for product change can be realized.

The adhesive tape is supplied to the product with constant and adjustable tape tension. The tape tension is controlled automatically by means of a traction-measuring unit. This is a condition for a stable tape-application process.

The lamination process is carried out with controlled stretch due to a synchronized speed control between the driven vacuum wheel and the driven counter roll in the transport unit (master slave). A proportional valve controls the contact pressure. Thus, tolerance variations of the profile can be compensated.

The heating units are cooled by means of water circulation.

Arising gases are evacuated through exhaust ducts.

Note: These components and modules are essential for a process-reliable processing of the tape, according to the parameters given by the tape manufacturer.

Benefits:

Highest possible security due to quality-controlled process

Low power consumption due to NIR technology

Fast product change – minor downtimes

Options/Additional Modules:

Coil for unwinding of rubber profiles

Winding coil for winding of rubber profiles

Loop control for controlled winding and unwinding speed

Units for marking of NOK sections

Double unwinding station with automatic splice unit for automatic tape-coil exchange

Cooling unit for water cooling

Approximate Consumption:

Electricity: 400 VAC, 8 kVA

Pneumatics: 6 bar compressed air, filtered not lubricated, 120 l/min

Cooling water: necessary water cooling 5 kW, flow temperature 15 - 60°C

Exhaust air: necessary suction output 300 m³/h

Approximate Dimensions:

Length 2,200 mm, depth 800 mm, height 1,850 mm (2,350 mm with pneumatic lift gate)