发明名称 |
Method and apparatus for controlling the thickness of extruded stock |
摘要 |
The thickness of a cut length of a continuously extruded elastomer is controlled by sampling the weight of a section of the continuous extrusion at a running-weigh-scale each second; computing and storing one-minute averages of the running-weigh-scale samples; sampling the weight of a cut length of the extrusion at a check-weigh-scale; comparing the check-weigh-scale value to the oldest stored running-weigh-scale one-minute average to obtain a targeted average; comparing the targeted running-weigh-scale average to the newest stored running-weigh-scale one-minute average to obtain a deviation from the targeted value if one exists; and converting the deviation from the targeted running-weigh-scale value to a control signal for increasing or decreasing the speed of a take-away belt positioned at the extruder exit orifice to vary the thickness of the extrusion in accordance with the deviation control signal and the speed of the belt.
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申请公布号 |
US4088721(A) |
申请公布日期 |
1978.05.09 |
申请号 |
US19760726712 |
申请日期 |
1976.09.24 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
APICELLA, JR., ANTHONY M. |
分类号 |
B29B7/00;B29C47/00;B29C47/34;B29C47/40;B29C47/92;B29D30/52;G01G11/12;G05D5/03;(IPC1-7):B29C17/00 |
主分类号 |
B29B7/00 |
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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