发明名称 |
Toothbrush body preform molding device and toothbrush body preform to be provided with buffer cap |
摘要 |
A device for molding a buffer cap at the same time of fixing the cap to the bristle base implanting head of a toothbrush body preform. In the buffer cap molding and fixing device, a stationary molding plate is coupled to a mounting plate by a stop rod such that it is limited in its moving distance. The stationary molding plate has a plurality of sprues aligning with a plurality of gate holes. The bottom surface of the stationary molding plate has a plurality of top cavities, communicating with the sprues through their respective gates and each having a wider section provided with a pair of holding projections for holding a toothbrush body preform. The gates are formed at necks of the top cavities respectively. A back up plate is interposed between the stationary mounting plate and the stationary molding plate. A core plate comes into contact with the stationary molding plate at a parting plane. The top surface of the core plate has a plurality of bottom cavities corresponding to the top cavities. The wider section of the bottom cavity has a recess showing a surface roughness of 0.1-0.45 mu .
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申请公布号 |
US5538410(A) |
申请公布日期 |
1996.07.23 |
申请号 |
US19950466282 |
申请日期 |
1995.06.06 |
申请人 |
BYONG DUK CHOI |
发明人 |
YOO, KYONG Y.;CHOI, BYONG D. |
分类号 |
A46B17/08;A46D3/00;A46D9/00;B29C45/14;(IPC1-7):B29C45/14;B29C45/27 |
主分类号 |
A46B17/08 |
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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