Telescope tube injection molding technology

• Main Author: PU CHUNHUA
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2018
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to the technical field of injection molding, in particular to a telescopic tube injection molding technology. The telescopic tube injection molding technology comprises the following steps of S1 preparation of an injection mold, S2 the filling stage, S3 the compacting stage, S4 the pressure maintaining stage and S5 cooling and formation. According to the telescopic tube injection molding technology, pressurization is conducted with protective gas to improve the flowing effect of raw materials, so that shrinkage cavities and other defects caused by insufficient flowing arereduced; and in addition, the mold is provided with a cooling channel, under the action of cooling water, rapid cooling can be achieved, and the production efficiency is improved. 本发明涉及注塑成型技术领域，尤其是种望远镜镜筒注塑成型工艺，包括以下步骤：S1、制备注塑模具；S2、填充阶段；S3、压实阶段；S4、保压阶段；S5、冷却成型。本发明采用保护气体加压增加原料的流动效果，从而减少流动不充分造成的缩孔等缺陷，另外模具设置了冷却通道，在冷却水的作用下，能够实现快速冷却，提高了生产效率。