straight guide bushes are usually applied to simple molds or molds with thin plate; I-type headed guide bush is mainly applied to complicated molds or the guide of fixed and moving molds of large- and medium-sized molds; […]
to ensure sound fitting of parting line after mold closing, a cuttings shoot of the guide pillar and guide bush should be made on the parting line; […]
the surface roughness for the working part of the guide pillar takes Ra0.0004mm.(micron order Ra 0.0002mm), […]
clearance fit is adopted between the guide pillar and guide bush, with the quality of fit usually as H7/h5(G6/h5 or H6/h5 for high quality of fit and H8/f8 or H9/f9 for low quality of fit) and the slip length usually takes 1.5—2 times of the mating diameter, […]
for molds with small batch of production and of low precision, the guide pillar can be directly fitted with pilot hole on the plate. The hole should be generally made into through hole, […]
Every mold manufacturer is searching for ways to increase productivity, and sometimes that means examining your current processes and changing the way you work. Despite what many think about the dreaded “change” word, if change is implemented properly it can mean less work, not more. An area in which you can experience dramatic results with [...]
DFM. No, not Designed for Manufacturability, Designed for Maintainability. Every mechanical apparatus will eventually need maintenance; it’s a fact of life. Knowing this should be all the impetus needed to motivate anyone with a vested interest to give more than just passing thought to the design of injection mold tooling. The understanding that tools will [...]
Standard slide assemblies have been available to molders and moldmakers since 1991. The design and production of a standard component is critical to the success of the product. Not only does the design have to be very reliable and proven, it also has to be versatile enough to fit many different applications. That is the [...]
shallow side concave of plastic parts requires small core-pulling distance, yet when the molding area of side concave is large, a large core-pulling force is thereby needed, therefore, tilted lifter mechanism can be adopted for side parting and core-pulling. […]
a detail for designing tilted lifter mechanism need to be known, for inner side core-pulling, top of the tilted slide should be 0.05—0.1mm lower than the end plate if core, since during the protruding, […]