How to perform routine maintenance of injection molding machine?
1. Daily maintenance of injection molding machine
Prior to the operation, the lubricating oil shall be filled in accordance with the lubrication requirements of the injection molding machine.
If the lubrication system is centralized, the lubricating oil level shall be checked.
The tank oil level should be checked daily, and if insufficient, clean lubricating oil should be added to the normal height.
Please check whether the heater is working properly and whether the thermocouple contacts well.
Electrical switches shall be checked in each shift, especially safety doors and limit switches.
If manual operation is applied during the shift, the mold should not complete the closing action when the security door is opened.
The emergency stop button is checked once a day and the pump and all movement should be stopped when the button is pressed.
Marks always pays attention to the sound of injection molding machine. If there is any abnormal sound, it should immediately report to relevant personnel for inspection and troubleshooting.
The safety protection device for the drive device should be inspected regularly, and if any hidden trouble is found, it should be eliminated immediately.
2. Weekly maintenance of injection molding machine
All the bolts in the important connection position should be tightened once a week to ensure the fastener works reliably.
The position of the circulating limit switch is crucial to the normal operation of the machine, and it is frequently impacted, so the relevant screws of the limit switch should be tightened once a week.
(3) a week on the oil cooler the leakage of valves and pipe fittings for a check-up, make the hydraulic system oil temperature control under 55 ℃.
3. Monthly maintenance of injection molding machine
(1) to the heating element ー outer surface condition check, can't adhere to plastic surface, heating coil and terminal can't loose, wire outer skin cannot be damaged, ensure the normal work.
Static check of all bolts at one time, especially the head of the cylinder, the bolts of the mold closing mechanism, and the connecting screws of the control line in the electric control cabinet.
Check the infiltration of hydraulic components, lubrication points, pipe joints, etc.
Check the ventilation filter of the electric control cabinet. Remove and clean it if scaling or blockage is found.
4. Semi-annual maintenance of injection molding machine
Check the cleaning condition of the hydraulic oil to see if there are any bubbles and precipitates in the oil. Most of the bubbles are caused by oxidation and most of the precipitates are impurities or dirt.In case of such situation, the replacement of hydraulic oil should be considered.
In the case of the rods with ceramic sleeve, the surface of the rods should be wiped with an oil cloth every half a year to form a layer of oil film on the surface of the rods. Meanwhile, the rods should be soaked and lubricated frequently.
To open the distribution cabinet, check whether the fuse box in the cabinet is loose, and check the insulation performance of the main circuit wires.