Cold Bending Forming MachineInaccurate Molding Can Directly Lead To Problems Such As Dimensional Deviation, Distortion, Waves, And Incorrect Angles Of The Profile, Affecting The Product Qualification Rate. This Type Of Malfunction Can Be Investigated And Resolved In Order From Simple To Complex.
Firstly, Check The Raw Materials. Uneven Thickness Of The Board, Hard Material, And Rust Or Oil Stains On The Surface Can All Cause Unstable Molding. It Is Recommended To Use Strip Steel With Qualified Thickness Tolerance, Clean Surface Impurities Before Feeding, And Ensure Consistency Of Raw Materials.
Next, Check The Feeding And Guidance. Uneven Feeding, Left-right Deviation, And Excessive Clearance Between Guide Wheels Can Cause The Sheet Metal To Deviate During The Forming Process, Resulting In Asymmetric Dimensions On Both Sides. The Level Of The Feeding Platform Should Be Adjusted, And The Guide Wheels Should Be Calibrated To Ensure That The Sheet Enters The Rolling Mill Smoothly And Centered.
Focus On Inspecting The Rolling Mill System. Roll Wear, Looseness, Misalignment, And Improper Installation Are Common Reasons. After Long-term Use, The Rolling Mill May Experience Wear And Chipping, And Should Be Repaired Or Replaced In A Timely Manner; Check The Fixing Bolts Of The Rolling Mill, Re Tighten And Correct The Clearance Between The Shaft Seats To Ensure Consistent And Symmetrical Clearance Between The Upper And Lower Rollers.
Then Check The Transmission And Frame. Loose Chains And Gears, As Well As Damaged Bearings, Can Cause Asynchronous Rotational Speeds, Leading To Distortion And Deformation. It Is Necessary To Tighten The Transmission Components, Replace Damaged Bearings, Ensure The Horizontal And Vertical Accuracy Of Each Pass Frame, And Promptly Correct Frame Deformation.
Also Pay Attention To Lubrication And Cooling. Insufficient Lubrication Can Increase Friction, Leading To Stretching And Deformation Of The Sheet Metal. Therefore, Lubricating Oil Should Be Regularly Added To The Bearings And Rollers. Forming Too Quickly Can Also Cause Insufficient Compression. It Is Advisable To Reduce The Forming Speed Appropriately To Allow The Sheet Metal To Undergo Sufficient Plastic Deformation.
Finally, Check The Cutting And Sizing System. Inaccurate Sizing And Cutting Lag Can Cause Inconsistencies In The Length And End Face Of The Finished Product. It Is Necessary To Calibrate The Encoder, Limit Switch, And Clean The Cutting Tool.
Proper Maintenance And Regular Calibration During Daily Use Can Significantly Reduce The Problem Of Inaccurate Pressing. If Self Adjustment Is Ineffective, You Can Contact The Equipment Manufacturer For Professional Maintenance To Restore The Molding Accuracy.
