发明名称 |
High speed injection molding apparatus and method for dental floss holder |
摘要 |
An injection molding apparatus for manufacturing dental floss holders has at least one strand of dental floss from a supply spool extended through the space between mating mold pieces and thereafter to a take-up device. From each injection stage of the molding cycle a rack of connected dental floss holders is produced. Tension of the floss is maintained from the upstream supply spool by a first tensioning device through the mold to the downstream end by the take-up device. During each injection cycle the take-up device engages another rack of molded parts and moves it to a downstream position where it is severed from the strand of floss while it maintains the tension in the floss upstream of the severed rack. This is achieved by the take-up device engaging at least two successive racks downstream of the mold and using the rack closest to the mold to maintain tension.
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申请公布号 |
US6544457(B1) |
申请公布日期 |
2003.04.08 |
申请号 |
US20000506311 |
申请日期 |
2000.02.17 |
申请人 |
PLACONTROL, INC. |
发明人 |
RIESER ALAN J. |
分类号 |
A61C15/04;B29C45/14;(IPC1-7):B29C45/14;B29C70/68 |
主分类号 |
A61C15/04 |
代理机构 |
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代理人 |
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主权项 |
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