Film Slitter Operation Manual: The complete process from start-up to slitting parameter setting

The following is a complete operation process manual of the film slitting machine from start-up to slitting parameter setting for reference:

Film Slitting Machine Operation Manual

First, preparation before start-up

1. Security checks

◦ Confirm that the power cord and air circuit of the device are not damaged, and reset the emergency stop button.

◦ Check that there is no debris around the machine, and there are no personnel near the guide rail and tool.

2. Preparation of materials

◦ Check that the roll specifications (width, thickness, material) are consistent with the production order.

◦ Confirm that the core size (e.g. 3 inches/6 inches) is compatible with the slitter.

3. Equipment inspection

◦ Clean the guide rollers and tension rollers to ensure that there is no dust or film shavings.

◦ Check the sharpness of the tool, and replace the blunt knife (it is recommended to check every 500,000 meters).

◦ Lubrication of moving parts such as rails and bearings (use specified grease).

Second, the boot process

1. Power start

◦ Turn on the main power switch, start the control panel, and the system self-test (about 30 seconds).

◦ After the main interface is displayed on the touch screen, confirm that there is no alarm prompt.

2. Parameter initialization

◦ Select Production Task → enter the order number to retrieve the preset parameters (or manually create one).

◦ Set the basic parameters: material type (such as PET/PP/PE), master roll width, target slitting width.

3. Film penetration path setting

◦ Press [Film Penetration Mode] to manually bypass the film guide roller, tension roller, and correction sensor.

◦ Ensure that the film is wrinkle-free and that the edges are aligned with the centerline of the correction sensor (within ± 1mm error).

Third, slitting parameter setting

1. Slitting width setting

◦ Enter the number of slitting strips on the touch screen (e.g., 1000mm for the master roll→ 5 slitting strips for 200mm).

◦ The system automatically calculates the tool position and needs to be manually fine-tuned (it is recommended to reserve a margin of 0.5mm to prevent sticking).

2. Tension control

◦ Unwinding tension: set to 10%~15% of the tensile strength of the material (such as PET commonly used 20~30N).

◦ Winding tension: decreasing step by step (e.g. starting tension 25N, decreasing 1N per layer).

◦ Enable taper tension control (recommended taper ratio 5%~10%).

3. Speed and precision

◦ Initial low-speed (10~20m/min) test operation, stable and gradually increase (MAX reference value: 150m/min).

◦ Set the guiding sensitivity to mid-range (e.g., ± 0.3mm trigger correction).

4. Tool parameters

◦ Select the cutting method (e.g., razor slitting/round slitting).

◦ Calibration of tool pitch accuracy (need to use feeler gauge to confirm tool pitch error ≤0.05mm).

Fourth, trial operation and adjustment

1. No-load test

◦ Without loading the film, the equipment is run to check the action of each component (guiding deviation, tension roller response).

◦ Simulated alarm triggering (e.g., film breakage, overtension) confirms that the safety function is normal.

2. Test cutting with material

◦ Run at low speed for 5~10 meters to check the flatness of the slitting edge (no burrs and sawtooth).

◦ Measurement of slitting width (random sampling of 3 points, tolerance ± within 0.1mm).

3. Dynamic adjustment

◦ If the end face of the winding is not uniform, increase the pressure of the winding roller (0.2~0.5MPa).

◦ In case of snaking, improve the tracking response speed or clean the photoelectric sensor.

5. Formal production and monitoring

1. Run in batches

◦ The speed is increased to the process set value, and the slitting quality is sampled every 30 minutes.

◦ Record key data: actual tension fluctuations, number of mlits, scrap rate.

2. Exception handling

◦ Film breaking: Stop the machine immediately to check whether the unwinding tension is abrupt or the guide roller is stuck.

◦ Loose rewinding: Check whether the air pressure ≥ 0.6MPa or reduce the maximum linear speed.

6. Shutdown and maintenance

1. Normal shutdown

◦ After gradually reducing the speed to 10m/min, click [Stop].

◦ Mark the slitting direction (with arrow stickers) before unwinding.

2. Routine maintenance

◦ Clean up the broken film debris daily and check the air filter drainage.

◦ Weekly calibration of the tension transducer (tested with standard weights).

Attached: Quick Reference Table of Frequently Asked Questions

Notes:

• No gloves on rotating parts!

• After the parameter is modified, it needs to be confirmed twice before saving.

• Complete operation requires holding the "Slitting Machine Operation Certificate".

(Note: The specific parameters need to be adjusted according to the equipment model and material characteristics, this manual takes the general model as an example)