1. After measuring the finished product, check the inspection standards to determine the variation. Check the LAYOUT to measure whether the size of the project is the same as the mold drawing, and whether the size is different. If necessary, measure the related projects before and after to make sure Determine the place and cause of the variation, and then implement countermeasures to solve it.
2. When you are unable to determine or propose countermeasures by yourself, you should ask others for advice, and don't act arbitrarily.
3. Too big hair
(1) Knife edge wear: re-grind
(2) The gap is too large: most of the sides are polished tape, the brightness is low, reduce the gap
(3) The gap is too small: the secondary shear surface increases the gap.
(4) Conjunction cut: change the degree of joint or make a difference or reduce the gap.
(5) Too sharp à: The product à degree is less than 75 degrees to change the engineering or gap.
(6) The material is too hard: replace the material or increase the gap.
(7) Mold collapse à: Re-grind.
(8) Improper mold shell: local hairs or scratches. Re-calibrate or modify the mold
4. Bite the mold
(1) Mould is loose: the movement of the punch or die exceeds the unilateral gap. Adjust the combination gap.
(2) Die tilt: The straightness of the punch or die is not correct, or there is foreign matter between the templates, which prevents the template from being flat. Reorganize or grind correction.
(3) Template deformation: The template is not rigid or thick, or deformed by external force. Replace with a new template or correct the method of disassembly.
(4) Deformation of the mold base: the thickness of the mold base is not uniform or the force is uneven, and the straightness of the guide post and the guide sleeve varies. Grinding and correcting or refilling plastic steel or replacing the mold base or equalizing the force.
(5) Die interference: Whether the size of the punch or die is correct, whether the position is correct, whether the upper and lower die positioning is deviated, whether it will loosen after assembly, the accuracy of the punch is not correct, and the die frame is not correct.
(6) Punching shear deflection: The punch strength is not ì, the big and small punches are too close, the lateral force is not balanced, and the punch is semi-oblique. Strengthen the guiding and protection function of the peeling sloping plate or increase the punch, short the small punch lt increase the heel and heel length and support and guide early, pay attention to the feeding length.
