公开(公告)号：US20160151942A1

公开(公告)日：2016-06-02

申请号：US14945948

申请日：2015-11-19

Applicant: HOSOKAWA ALPINE Aktiengesellschaft

Inventor： Bernd BAYER

IPC: B29C35/16 ,  B29C55/28

CPC classification number: B29C35/16 ,  B29C47/0026 ,  B29C47/0057 ,  B29C47/883 ,  B29C47/908 ,  B29C55/28 ,  B29C2035/1658 ,  B29K2101/12

Abstract: An internal cooling tower for a film blowing line with one or more superimposed cooling air nozzles designed such that the entrainment of droplets consisting of low-molecular components of the raw material that diffuse during the film blowing process from the film into the flow of cooling air is prevented. This is achieved in that at the height of the nozzle gap, the top surface of the cooling air nozzles has a grooved contour both on the inside and the outside.

Abstract translation: 一种用于吹膜线的内部冷却塔，其具有一个或多个叠加的冷却空气喷嘴，其被设计成使得由薄膜吹制过程中扩散的原料的低分子量组分组成的液滴从薄膜中夹带到冷却空气流中 被阻止 这是通过在喷嘴间隙的高度处实现的，冷却空气喷嘴的顶面在内侧和外侧均具有槽形轮廓。

公开(公告)号：US20230241830A1

公开(公告)日：2023-08-03

申请号：US18100025

申请日：2023-01-23

Applicant: HOSOKAWA ALPINE Aktiengesellschaft

Inventor： Bernd BAYER ,  Georg SCHARPF ,  Hans-Peter SCHÜLE

IPC: B29C48/92 ,  B29C48/00 ,  B29C55/28

CPC classification number: B29C48/92 ,  B29C48/0018 ,  B29C55/28 ,  B29C48/0022 ,  B29C2948/92152 ,  B29C2948/92447 ,  B29C2948/92647 ,  B29C2793/009

Abstract: The thickness profile of a film tube manufactured using a film blowing process is regulated using a control system consisting of segmented control zones and at least at two measuring units for the film thickness such that the specified target film thickness profile exhibits deviations from a uniform film thickness in the form of one or two thin spots opposite each other, which serve to compensate for film thickness changes across the film width which occur during the monoaxial orientation in machine direction so that a film web is produced as a result of orientation whose thickness profile has as few deviations as possible from the target thickness across the entire width of the film web, the final film should exhibit a thickness profile where the thickness increase from the middle of the film to the edges is as minor as possible and the flatness of the film is improved.