How to assemble each part in injection molding machine cylinder and what are the matters needing attention?
Clean cylinder body, piston and end cover while removing burrs.
The actual dimensions of cylinder body inner diameter and piston outer diameter are within the range of H8/f8 or H8/f9 mating precision.
Test the diameter of sealing rubber ring and piston groove.When the sealing rubber ring is installed in the piston groove, it should be slightly stretched, that is, the diameter of the rubber ring (refer to the inner ring) should be slightly less than the bottom diameter of the piston groove.If there is a baffle ring, simultaneously load the baffle ring.
In connection with piston rod and piston, two end faces shall be strict, and sealing rubber rings shall be added at the same time, and nuts shall be uniformly tightened.
If the piston is tested in the cylinder body, the non-orifice end cover at the cylinder end can be loaded if the sliding is flexible and the thrust is even.
Before assembling the end cover of guide sleeve, the actual size of piston rod diameter and inner hole of guide sleeve should be checked first, which should meet the requirements of H8/ H8 mating precision.If qualified, the guide sleeve and the piston have a spacer sleeve, should be first loaded into the spacer sleeve, and at the same time sealed rubber ring.And then you tighten it.Note: the force should be even when fastening, and the piston rod should be pushed at the same time.
The connecting nozzle on the inlet and outlet of hydraulic oil is installed.