Pdf the demand of ultra thin plastic parts in global industries is increasing today. Three plate mold consist of two parting planes and mold splits in three sections. Two types of gating systems which are side gate for 2plate mold and pin point gate for 3plate mold are tested. A two plate mould b three plate mould c runner less moulds. Rtp company corporate headquarters 580 east front street winona, minnesota 55987 usa. Pdf flow analysis of three plate family injection mould. The tool construction is divided into three distinct plate buildups which separate from each other on opening. Round cavity two plate stripper plate molds omni mold.
Two plate mold is the easiest injection mold structure and has many advantages. Its consist with a side and b side 2 main parts, when it is load in ejection machine. The advantage of a three plate mold design is that it permits the gates to be located on top or bottom of the part at any point on the surface. The three plate mould differs from the more common two plate design format in terms of utilizing more than one split or parting line. Manufacturers can also suggest ways to reduce mould price. Fixed half retainer plate 2 fixed half mold plate 3. The grabcad library offers millions of free cad designs, cad files, and 3d models. Plastic part design types of injection molds topics. Join the grabcad community today to gain access and download. Well placed gates will produce quality parts every cycle. Twoplate mold consist of one parting plane and mold splits in two halves.
One opening provides clearance for component ejection,while the other allows. In this article we will discuss two plate and three plate mold their construction, advantages and disadvantages. They are available in 2plate, 3plate, and stripper plate versions. Its consist with a side and b side 2 main parts, when it is load in ejection machine to do molding, a side is fixed and held still, b side is movable. Round cavity molds omni mold systems mold bases have been standardized to a greater degree than any other on the market. Learn how to design a 3 plate mold and when to use a 2 plate mold design. When adopting a pin point gate structure, always the structure 2 is used. See below figure to get the details of the 2 plate mold. A complex single cavity mold requires more than one injection location the injection location is in an awkward position achieving a balanced flow requires the runner to be outside the parting plane you can use a two plate mold with hot runners to overcome these problems, but three plate molds have some advantages over hot runner molds. China ejection twoshots plastic mold plate suppliers and. A complex single cavity mold requires more than one injection location. In the case of a side gate or a tunnel gate, the structure 1 is used normally. You can use a twoplate mold with hot runners to overcome these problems, but threeplate molds have some advantages over hot runner molds. The selection between these two structures is determined by the method of the gate used.
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