Title:
管の製造法ならびに射出成形装置
Document Type and Number:
Japanese Patent JP6498360
Kind Code:
B2
Abstract:
The invention relates to a method for producing a tube by injection molding a thermoplastic molding compound by using an injection-molding device with an article cavity, which defines the outer contour of the tube, and with an injection device, which is designed to drive a profile through the article cavity filled with the thermoplastic molding compound and thereby displace a liquid core of the molding compound, wherein the method envisages closing an opening of the article cavity with a mould core, which with the article cavity forms a hollow mould space and which has a secondary cavity that can be filled with the molding compound. After the filling of the article cavity and the hollow mould space with the thermoplastic molding compound, a projectile is driven through the article cavity, wherein the projectile displaces the molding compound into the secondary cavity. Subsequently, the mould core with the filled secondary cavity is pulled, wherein the displaced molding compound is separated from the molding compound forming the tube. The invention also relates to an injection-molding device for carrying out the method.
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Inventors:
Hartmut Wolf
Application Number:
JP2018531597A
Publication Date:
April 10, 2019
Filing Date:
December 15, 2016
Export Citation:
Assignee:
Cowtex Textron Gezel Shaft Mitt Beschlenktel Haftung Und Companie Commandie Gezel Shaft
International Classes:
B29C45/26; B29C45/17
Domestic Patent References:
| JP10180812A | ||||
| JP2012131136A | ||||
| JP2012213919A | ||||
| JP2012224083A | ||||
| JP2011518698A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima