10/19/2012

Injection Mould General Check List

Injection Mould General Check List

Individual Plates of Injection Mold


1 Pry bar slots are located in a position which will insure injection mould separation without damaging components?
2 Eye bolt holes are installed according to engineering prints to ensure safety of handling and are properly thread?
3 Tapped holes have been installed to attach the injection mould parting line lathes and prevent opening?
4 Plates have been properly machined to carry all vents to atmosphere?
5 Injection mould plates have been deburred and chamfered?
6 All wires are properly channeled and secure according to engineering prints?
7 Mould includes all components specified on Bill of Material?
8 Mould with lift bar attached hangs level within .125"?

Injection Moulding surface


1 Runners are are radiused and polished to SEASKY specifications.
2 Runners are to print specification.
3 Gates are to print specification.
4 Cavity inserts have been polished as specified.
5 Cavity blocks have been deburred and polished as specified.
6 Core inserts have been deburred and polished as specified.
7 Core blocks have been deburred and polished as specified.
8 Do parting line properly seal off?
9 All engraving is as specified on mould drawings.

 Ejector Side Injection Mold Assembly


1 Pin retainer plate and ejector plate are deburred and chamfered to SEASKY standards
2 Ejector plate slides freely on guided ejector
3 Ejector pins fit properly in their holes and spin freely from parting line.
4 Ejector housing has been deburred and chamfered.
5 Machine knockout holes are tapped and chamfered to  SEASKY standards
6 Ejector pins are keyed for non-rotation and identified for location according print specification.
7 Guided ejector bushing press fit retainer plate.
8 Guided ejector bushing slip fit into ejector plate.

General Injection Mold Check


1 Ejector pins are not chipped or appear to have excessive clearance in their holes.
2 Leader Pins enter bushings before core enters cavity
4 All "in" and "out" lines are labeled to print
5 Injection mould have been tested with pressurized water and has no leaks
6 Brass pipe plaugs used per Bill of material ( no steel)
7 Labels are instaled on mould base per print specification.
8 SEASKY mould tag, in pocket 

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