A - Injection of thermoplastics: A – 热塑性塑料的注塑
The Funnel supplies the screw of plasticization in granulated of thermoplastic material. 料斗用于向螺杆提供颗粒状的热塑性材料以进行注塑。 This screw while turning makes it possible to bring the matter in the sleeve. The heating collars and the mechanical action of the screw will dissolve and to mix the pellets which will become pasty and to mix what is useful when one adds additives (dyes, charges, anti-UV, fungicides, etc...) 螺杆在转动的同时将塑料颗粒带入料桶内。螺杆的机械转动将熔化和混合塑胶颗粒以使它们变成浆糊状态,并当加入添加剂(干燥剂,防UV剂,杀真菌剂等)时,能够将有用的材料混合在一起。 Proportioning (preparation of an quantity to be injected into the mould) is carried out by rotation of the screw 比例(在模具中注塑的材料数量调配)是通过螺杆的转动来实现的。 The injection is done by a fast translation of the screw which then stops turning. 注塑过程通过螺杆的快速转化完成后 ,螺杆即停止旋转。 The material penetrates in the mould and comes to fill the cavities while passing in sprue, the channels of injection and the sprue gate. 材料通过进胶点渗透到模具中并填充型腔,流道和水口中。 The mould remains closed during a few of time, to make it possible the material to solidify itself by the water circuit of the mould . 模具静止一段时间,以使材料通过模具的运水而凝固。 During this time, the screw moves back while turning to carry out a new proportioning by bringing material melted to the front of the sprue tube. 在这段时间里,螺杆回复到原位,同时旋转以实现下一环节的动作,即将熔化的材料带入进胶管前端。
The unit of injection moves back then not to remain in contact with the mould, the core side of the mould moves back in order to open the Parte Line and the ejectors will leave to eject the part out of the cavity . The mould then will be closed again, the ejectors will return, the unit will advance and the sprue tube will come again in contact with the tools to carry out a new injection. 进胶部分(料桶)复位,不再与模具相连,后模向后移动以分模,顶针停留在后模上以将产品从前模上顶出。然后模具再次闭合,顶针复位,进胶部分前行,料桶再次与相关部位相连以实现下一次新的注塑。
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