| 发明名称 |
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| 摘要 |
PURPOSE:To achieve material change with a minimum labor and time by preventing the waste of material leaving only minimal material below the surface of the accumuration detected with an upper level gauge provided in a charge hopper. CONSTITUTION:Level gauges 3 and 4 are provided each at the upper and lower positions of a charge hopper 2 of an extruder 1 and controlled by a microcomputer 9 with a level gauge 6 of a measuring hopper 5 to always detect the length l of a extruded coat strip by way of a strip length counter 10. The level gauge 3 is kept on from the start of feeding material until the quantity of material being fed determined by calculation on the value of work length L- the length l of the extruded coat strip or the like approaches the preset level of material to be used and activates the measuring hopper 5 under the control thereof to feed material. When the quantity of material fed approaches the preset level of material used, the level gauge 3 is turned off and the level gauge 4 turned on with a switching and thus, the feeding of material is continued under the control of the level gauge 4 until the quantity of material fed equals the quantity of material used. |
| 申请公布号 |
JPS6030250(B2) |
申请公布日期 |
1985.07.15 |
| 申请号 |
JP19800138755 |
申请日期 |
1980.10.06 |
| 申请人 |
SHOWA ELECTRIC WIRE & CABLE CO |
发明人 |
NAKASHIZU SHUICHI;ASAKA KAZUHIKO;INOCHI TOSHIAKI |
| 分类号 |
B29C31/00;B29B9/00;B29C31/02;B29C31/06;B29C47/02;B29C47/10;B29C47/92;G05D9/00;H01B13/14 |
主分类号 |
B29C31/00 |
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