发明名称 |
Headbox with adjustable lamella |
摘要 |
A papermaking machine has a headbox with upper and lower cells divided by a horizontal flow guide vane. The vane has upper and lower panels separated by a sliding tab. The tab moves back and forth (11) under the combined influence of a compression spring and a rotating spindle with a steel cable. A papermaking assembly feeds (S) a fibrous suspension (6) through a headbox (1) with upper (Z2) and lower (Z1) cells incorporating vortex generators and discharging through a wide-slit jet (7) defined by upper (8.2) and lower (8.1) walls. The cells are separated by a transverse bearing bar (3) for a twin-lamella flow vane (2). The vane (2) esp. has upper (9, 2) and lower (9.1) parallel panels separated by a gap (A) with a sliding tab (10).The transverse bearing bar (3) has a spindle with a single steel cable attached at two points and linked to the tab. The tab is moved away from the spindle by a compression spring (12.1) and is withdrawn by rotation of the spindle, allowing fore and aft tab movement (Wv).
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申请公布号 |
EP1426484(A1) |
申请公布日期 |
2004.06.09 |
申请号 |
EP20030102716 |
申请日期 |
2003.09.05 |
申请人 |
VOITH PAPER PATENT GMBH |
发明人 |
RUF, WOLFGANG;DUERR, ULI;PICHLER, JOERG |
分类号 |
D21F1/02;(IPC1-7):D21F1/02 |
主分类号 |
D21F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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