The gate of plastic injection mould
2023-12-18
The plastic injection mold can be divided into three types according to the different gate system (1) Large nozzle mold: the runner and gate are on the parting mold line, and the plastic injection product is demoulded when opening the mold, the design is the simplest, easy to process, and the cost is low, so more people use the large nozzle system operation. 
(2) Fine nozzle plastic injection mold: the runner and gate are not on the parting line, generally directly on the product, so it is necessary to design more than a group of water parting line, the design is more complex, the processing is more difficult, generally depending on the product requirements and choose the fine nozzle system. (3) Hot runner plastic injection mould: This kind of plasitc injection molding structure is roughly the same as the fine water mouth, the biggest difference is that the runner is in one or more hot runner plates with constant temperature and hot mouth, no cold material demoulding, the runner and gate are directly on the product, so the runner does not need to demoulding, this system is also known as no water mouth system, can save raw materials, suitable for more expensive raw materials, products with higher requirements, design and processing difficulties, The mold cost is higher.
