Three Categories Of Plastic Molds

(1) Hot runner mold: The structure of this type of mold is roughly the same as that of the nozzle. The big difference is that the runner is in one or more hot runner plates and hot nozzles with constant temperature. There is no cold material demoulding, the runner and The gate is directly on the product, so the runner does not need to be demolded. This system is also called a nozzleless system, which can save raw materials. It is suitable for situations where raw materials are more expensive and products are demanding. Design and processing are difficult, and mold costs are high. .

(2) Large nozzle mold: The runner and gate are on the parting line and are demolded together with the product when the mold is opened. The design is quite simple, easy to process, and low cost, so more people use the large nozzle system to work.

(3) Fine nozzle mold: runners and gates are not on the parting line, but are usually directly on the product, so it is necessary to design an additional set of nozzle parting lines. The design is more complicated and the processing is more difficult. Generally, the selection depends on the product requirements. Fine nozzle system.