Sheet Bending Machine Pre-Operation Preparation
Before operating a sheet bending machine thorough preparation ensures operator safety improves work efficiency and maintains bending quality. This guide covers all critical pre-operation checkpoints.
Mechanical Safety Inspection
Check that the power cord has no damage and the plug connection is secure. Verify all safety devices including protective covers and emergency stop buttons are intact and functional. Confirm that safety light curtains or laser safety devices are properly working. Check that all warning labels and safety signs are clearly visible on the machine.
Lubrication System Check
Add lubricating oil at all lubrication points according to the lubrication chart specifications. Check the oil level in the main tank to ensure it reaches the oil level indicator mark. Verify oil quality meets requirements and replace if contaminated or degraded. Ensure the hydraulic pump operates smoothly without unusual noise when started.
Die and Tool Setup
Confirm that bending dies are installed correctly and firmly fixed without cracks or deformation. Verify the overlap and tightness of upper and lower dies. Adjust die clearance according to material thickness specifications. Determine lower die opening size based on plate thickness which should typically be 6 to 10 times the material thickness. Refer to the bending force and oil pressure curve to set the required hydraulic pressure slightly above the calculated requirement.
Warm-Up and Test Run
After equipment startup let the machine idle for 1 to 2 minutes and execute 2 to 3 full slide plate strokes during warm-up. Listen for abnormal sounds and observe all moving parts for smooth motion. Perform trial bending with scrap material to verify settings before beginning production work.
