发明名称 |
Verfahren und Vorrichtung zum Ultraschallquerversiegeln der Wände eines mit einem fliessfähigen Nahrungsmittel gefüllten Verpackungsmaterials |
摘要 |
An ultrasonic transverse sealing method for sealing the walls (9) of a tube (2) of packaging material filled with a pourable food product and fed along a path (P), and wherein the packaging material has heat-seal plastic material; the method providing for gripping two walls (9) of the tube (2) locally between a first and a second face (17; 21) of respective jaws (3, 4) of a sealing device (1); compressing the walls (9) to a first pressure (P1) along a first portion (15) of the walls (9); subjecting the first portion (15) to ultrasonic vibrations to melt the heat-seal plastic material and seal the walls (9) along the first portion (15); and compressing the walls (9) one against the other and by means of the jaws (3, 4) to a second pressure (P2), lower than the first pressure (P1), along a second portion (28) of the walls (9) adjacent to the first portion (15), so as to form a barrier between the first portion and the food product. <IMAGE> |
申请公布号 |
DE60101954(T2) |
申请公布日期 |
2004.12.23 |
申请号 |
DE2001601954T |
申请日期 |
2001.03.12 |
申请人 |
TETRA LAVAL HOLDINGS & FINANCE S.A., PULLY |
发明人 |
ANDERSTEDT, JAN;CAPASSO, SALVATORE;KNUTSSON, KENT |
分类号 |
B65B51/10;B29C65/00;B29C65/08;B29C65/74;B29L22/00;B65B51/22 |
主分类号 |
B65B51/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|