公开(公告)号：US20180065315A1

公开(公告)日：2018-03-08

申请号：US15551858

申请日：2016-02-19

Applicant: KIEFEL GMBH

Inventor： Bernd STEIN ,  Rupert GSCHWENDTNER

IPC: B29C65/78 ,  B29C65/00 ,  A61J1/10 ,  A61J1/14

Abstract: The aim of the invention is to avoid the risk of contamination of a bag for medical purposes, in particular to significantly reduce the amount of residual particles of material during the cutting of a tube for access to the bag. The invention proposes a system (1) for producing a bag for medical purposes comprising a tube transfer station (2) having transfer means (3) for transferring a tube (11), which is being transported towards the tube transfer station (2), to a holder (10) and for separating there a tube section (17) transferred to the holder (10) from a remainder (18) of the tube (11), in order to then render the separated tube section (17) connectible to two film layers to form an access to the bag. The tube transfer station (2) comprises at least one air nozzle (55, 57), and an effective area (58) of the at least one air nozzle (55, 57) is directed onto a designated location (20) for separation such that a forced air flow (56) in the designated location (20) forced by air blown out and/or drawn in can be adjusted for separation.

公开(公告)号：US20170348896A1

公开(公告)日：2017-12-07

申请号：US15536483

申请日：2015-12-17

Applicant: KIEFEL GmbH

Inventor： Erwin WABNIG ,  Gerhard WIESER ,  Thomas HALLETZ ,  Bernd STEIN

IPC: B29C51/02 ,  B29C59/02 ,  B29C69/02 ,  B29C51/10 ,  B29C51/12 ,  B29C51/14 ,  B29C51/22 ,  B29C51/26 ,  B29C51/42 ,  B33Y30/00 ,  B29C64/112 ,  B29C45/56 ,  B29K67/00 ,  B33Y10/00 ,  B29L31/00

CPC classification number: B29C51/02 ,  B29C45/561 ,  B29C51/10 ,  B29C51/12 ,  B29C51/14 ,  B29C51/22 ,  B29C51/261 ,  B29C51/421 ,  B29C59/02 ,  B29C64/112 ,  B29C69/02 ,  B29C2791/001 ,  B29K2067/046 ,  B29K2995/006 ,  B29K2995/0067 ,  B29L2031/7174 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method for producing a thermoformed product on a single machine with several stations and with different tools includes the following steps: (a) melting and homogenizing plastic granules and providing the plastic melt at a preform station; (b) producing a preform at the preform station in a preform cavity; (c) transferring the preform by a transfer carrier to a thermoforming station at the same machine, the thermoforming station having a thermoforming tool having a thermoforming cavity; (d) preferably heating the preform during the transfer; (e) thermoforming of the thermoformed product in the thermoforming cavity. Advantageously, the final thermoformed product is produced directly from the plastic granules using only a single machine, and in particular without any waste, when the preform is dimensioned in such a way that it does not present any excess with respect to the final shape of the product to be produced.