公开(公告)号：US5759475A

公开(公告)日：1998-06-02

申请号：US676505

申请日：1996-07-08

Applicant: Nobuyuki Takakusaki ,  Yoshimi Terajima ,  Isamu Takeda

Inventor： Nobuyuki Takakusaki ,  Yoshimi Terajima ,  Isamu Takeda

IPC: B29C49/04 ,  B29C49/60 ,  B29C49/66 ,  B29C40/60

CPC classification number: B29C49/60 ,  B29C49/66 ,  B29C2049/6072 ,  B29C2049/6623 ,  B29C49/04

Abstract: A blow molding method by horizontal blow molding of piercing the wall of a parison having been extruded by an extruder with a blow nozzle is disclosed, which comprises moving forward the blow nozzle to pierce the parison, introducing blow air at least in the direction toward the bottom, i.e., opposite to the bottle neck and, after shaping of a hollow container by the blow air, forming an opening in the parison at a position in the vicinity of or above the blow nozzle-pierced portion to discharge the blow air having circulated inside the hollow container. In this blow mollding method, there is preferably used a blow air cylinder, which is constituted by (A) a blow nozzle having a mechanism for registering blowing inlets in at least part of a portion freely sliding forward and backward inside the body, having a tip portion with an outer diameter smaller than at about the center portion thereof and being of a shape of a closed injection needle, and having the blowng inlets located slightly at the back of the tip portion where the outer diameter is larger than that at the tip portion and smaller than that at the central portion and capable of introducng blow air in the direction toward the bottom, i.e., opposite to the bottle neck in an amount of 30% or more of the total blow air amount; and (B) a body provided outside and, at least partly, in cntact with the blow nozzle.

Abstract translation: 公开了一种吹塑成型方法，其通过用吹塑喷嘴挤出挤出的型坯的壁刺穿，吹塑成型方法包括向前移动吹塑喷嘴以刺穿型坯，将吹入空气至少朝向 底部，即与瓶颈相对，并且在通过吹扫空气成形中空容器之后，在型坯中在吹塑喷嘴刺穿部分附近或之上的位置处形成开口，以排出具有循环 在中空容器内。 在该吹塑法中，优选使用吹塑气缸，该吹塑气缸由（A）吹塑喷嘴构成，该吹塑喷嘴具有用于在主体内自由滑动前后的部分的至少一部分中配置吹入口的机构，具有 尖端部分的外径小于其中心部分处的外径，并且是封闭的注射针的形状，并且具有位于尖端部分的后侧的吹气口，其中外径大于尖端处的外径 部分和小于在中心部分处的空气，并且能够沿着吹向空气量的30％或更多的量朝向底部的方向，即与瓶颈相反的方向引入吹送空气; 和（B）设置在外部并且至少部分地与吹嘴接触的主体。