发明名称 |
EXTRUDER WITH FEEDBACK LOOP CONTROL |
摘要 |
An extruder for extruding an associated material includes an extruder housing that has a feed section, a center section that includes a throttle section, and an outlet section with an extruder screw disposed in the extruder housing. The extruder also includes a throttle at the throttle section. The throttle has a plurality of pins that extend radially into the housing. The pins are adjusted by a cam extending around the extruder housing. The cam has an inner wall that has a plurality of cam surfaces engageable by pins. The radius of each of the cam surfaces gradually decreases from a maximum radius to a m; minimum radius distance. The pins have springs that urge the pins radially outward to contact the inner wall of the cam. The cam is rotated by a piston and cylinder assembly. The extruder further includes sensors for temperature, gauge, weight, and other properties of the material. The extruder also has a control apparatus for controlling the speed of the extruder and the throttle based upon any combination of temperature, gauge, weight, and production requirements while the extruder is in operation. |
申请公布号 |
CA2197733(A1) |
申请公布日期 |
1997.09.27 |
申请号 |
CA19972197733 |
申请日期 |
1997.02.17 |
申请人 |
GOODYEAR TIRE & RUBBER COMPANY (THE) |
发明人 |
MURRAY, THOMAS ALAN;TURNER, BRUCE JOSEPH;BANAS, MARK DANIEL;MARSHALL, MALCOLM GEORGE;BURG, GARY ROBERT |
分类号 |
B29C47/58;B29C47/38;B29C47/92;B29K21/00;(IPC1-7):B29C47/08 |
主分类号 |
B29C47/58 |
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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