发明名称 |
Corrugated board manufacturing apparatus including a preheater section with a variable heat transfer system and a hotplate section with a passive hold-down mechanisim |
摘要 |
A variable heat transfer system and a passive, segmented hold-down mechanism for a preheater section and a hotplate section of a machine for manufacturing corrugated board. The preheater assembly having the variable heat transfer system includes a plurality of actuators to urge a continuous web of material toward a preheater drum. A sacrificial material is positioned between the web of material on the preheater drum and the actuators. In response to moisture detection in the material by a plurality of sensors, one or more of the actuators applies variable pressure in the cross-machine direction to the wet portion of the material. Also, the passive, segmented hold-down mechanism includes a plurality of independently weighted feet for varying a variable pressure profile in the cross-machine direction formed upon the web of corrugated board. The hold-down mechanism compensates for variations in the contour of the surface of the hotplate section.
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申请公布号 |
US6390963(B1) |
申请公布日期 |
2002.05.21 |
申请号 |
US19980201470 |
申请日期 |
1998.11.30 |
申请人 |
CORRUGATED GEAR & SERVICES, INC. |
发明人 |
LAUDERBAUGH DAVID |
分类号 |
B31F1/28;(IPC1-7):B31F1/20 |
主分类号 |
B31F1/28 |
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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