| 发明名称 |
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| 摘要 |
A process for joining the ends of a thermoplastic ribbon which protrude from a cassette is carried out on a single machine with four work stations. At the first work station the cassette is placed in a holder and the ends (24, 25) are clamped in a cross over position. At the second station the ribbon is tensioned welded ultrasonically and trimmed. At the third station it is tensioned again, pressed against an anvil and smoothed by ultrasonic heating. At the fourth station the ribbon is wound into the cassette and removed from the holder. The machine has a rotary work table (5) which indexes around its axis (8). Cassettes (3) are supplied from a conveyor (2) to an operator (1) who places the ribbon ends in clamps which can rotate and swing about an external axis as required by the various processes. USE/ADVANTAGE - An automated process is provided which does not rely on the skill of the operator to produce consistent joints and results in high quality printer ribbon cassettes. |
| 申请公布号 |
CH680623(A5) |
申请公布日期 |
1992.09.30 |
| 申请号 |
CH19900000050 |
申请日期 |
1990.01.08 |
| 申请人 |
SM ENGINEERING AG |
发明人 |
MESSERLI, JUERG;STOECKLI, XAVER;VON MOOS, FREDY |
| 分类号 |
B29C65/00;B29C65/08;B29C65/78;B41J32/02 |
主分类号 |
B29C65/00 |
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