1. Product weight: Products with different weights have completely different requirements for hot runners.
2. Plastic raw materials: Different plastic raw materials have different processing variables, and those processing variables will affect the choice of hot runner system.
3. Mold: What is the number of cavities? What is the nozzle distribution distance? What kind of material is processed? etc. These are the mold elements related to the optional hot runner system
4. Cycle cycle: Fast production cycle means higher requirements for nozzles. For example, nozzles need to transfer heat accurately and be durable.
5. Gate: For a point gate, in order to maintain a good thermal balance in each molding cycle, the tip of the hot flow nozzle must have the function of melting the material and cooling the seal. The valve gate uses a mechanical method to seal the gate.
6. Nozzles: Nozzles can generally be distinguished by size, temperature distribution, physical properties, materials used (copper, steel, etc.), and the difficulty and price of maintenance.
7. Runner: The use of the hot runner system avoids the production of material handles, which not only saves raw materials, but also saves the previous process of removing material handles by hand, manipulator or other methods.
8. Temperature control: each nozzle must be connected with a relatively complex temperature controller
9. The performance of the injection molding machine: it can install a mold of a given size, provide sufficient clamping force, operate according to the requirements of the cycle time, plasticize enough materials, etc.
10. Product design: Generally speaking, we all know that the product design is completed first, but the final molding is completed in the hot runner mold. In order to ensure a smooth product appearance and easy mold release at the end of molding, those factors must be considered in the structural design of the product.Wide mouth preform mould
Eternal life pursues the highest mold performance. Produce high quality preforms and use corrosion resistant steel to optimize preform production. Yongsheng mold has a long life. The mold design guarantees quick and easy maintenance. Yongsheng molds are easy to use, and regular maintenance work can be done directly on the machine in the shortest possible time. Mold parts are easy to replace and can produce different preforms on the same mold. Hard mold parts guarantee mold life and minimize maintenance. We can product 80-300mm，4-32 cavity self-lock width preform mould.At present, there are three series of PET preform molds, including double lock pneumatic needle valve tube blank mold. Double lock adjustable eccentric pneumatic needle valve preform mold, ordinary no-gate preform mold. The company uses advanced CAD for mold-assisted design. The shape of the preform is optimized for the final plastic bottle to ensure the final plastic molding quality. The double-lock pneumatic needle valve tube blank mold and the double-lock adjustable eccentric pneumatic needle valve preform mold adopt multi-dimensional cone positioning system to ensure the plastic thickness of the plastic bottle is consistent. At the same time, the unique hot runner system of Yongsheng Mould ensures the same pressure and PET flow ratio of each cavity.