Primary maintenance of molds
The primary maintenance of the mold refers to the daily maintenance of the mold by the operators in production. The main contents are cleaning, lubrication and inspection.
One, the maintenance of the mold
1. Clean the upper and lower surfaces of the mold before installing the mold to ensure that the mounting surface of the mold and the working table of the press are not damaged under pressure and the parallelism of the upper and lower mounting surfaces of the mold during production.
2. After the mold is installed, open the mold and clean all parts of the mold, especially the guide mechanism. Clean the surface of the mold to ensure the quality of the parts.
3. Lubricate and grease the sliding parts of the mold.Check all parts of die, especially safety parts.Such as: safety side pin, safety screw, side guard plate, punching waste channel, etc.
Two. Maintenance in production
The corresponding parts of the mould are regularly oiled during production.Such as: drawing die pressing ring, round corner;The cutting edge of the trimming die;Flanging knife block, etc.Regularly clean up the small hole waste path of trimming punch die.
Three. Maintenance after production
1, after the end of the production of the mold to carry out a comprehensive inspection.
2. Complete cleaning of the mold to ensure the cleanliness of the mold.
3. Clean up the waste in the mold to ensure that there is no waste in the waste box.
4. Feed back the use status and situation of the mold faithfully to the mold summons.
Secondary maintenance of molds
Secondary maintenance of the mold refers to the periodic system maintenance of the mold according to the technical status and complexity of the mold.The maintenance will be completed by the mold repair personnel and records will be made according to the maintenance condition.The requirements and methods of the second warranty are described below for different parts.
Drawdie punch, die: drawdie's punch, die main problem is the drawdie and the surface of the pit, the maintenance of the main corner of the drawdie to polish the part.If there is a pit to repair the mold welding, and then repair.
Guide parts (guide post, guide sleeve, guide plate, etc.) : the mould will have tension marks and other phenomena during working.The main causes are dirty lubricating oil and deviation of guide clearance.Guide parts to produce pull marks to take the use of whetstone push after polishing method to eliminate.
Trimming edge: In the process of using the die, the edge part is prone to collapse and collapse.At this point, the damaged edge of the mold should be repaired by welding.(Detailed methods will be introduced later)
Spring and other elastic parts: in the process of use, the spring is one of the most vulnerable parts of the mold, usually fracture and deformation phenomenon.The way to take is to replace, but the replacement process must pay attention to the specification and model of the spring, the specification and model of the spring through the color, outside diameter and length of three determined, only in this three are the same under the circumstances can be replaced.
Punch and punching cover: most of the punch and punching cover used on the mold are standard parts, and the punch is easy to break, bend and gnawing during the use of the mold.The sleeve is generally gnawed away.Damage to punch and sleeve is generally replaced with parts of the same specification.The parameters of punch mainly include working part size, installation part size, length size and so on.
Fastening parts: Check whether the fastening parts are loose or damaged.The way to do this is to find parts of the same specifications for replacement.
Pressing and unloading parts: pressing parts such as pressing plate, glue, etc., unloading parts such as unloading plate, pneumatic lifting device, etc.During the maintenance, check the assembly relation of each part and whether there is any damage, and repair the damaged part.Pneumatic charging check whether there is air leakage phenomenon, and take measures to the specific situation.If the air pipe is damaged, replace it.
