| 摘要 |
The unit mounted on the lower moving plate of clamping device in an injection molder, has the shaft holes (4,4') with opening edge (4a), larger hole (4b),(4') in inner projection (3) of bracket (2); a rotary roll (5) inserted to the shaft (6) at the holes (4,4'); space (9) for containing the roll (5) between shaft mounting projections (3a,3b); shaft (6) combined with flange (6a), middle section (6b), small-diameter edge (6c); bolt (10) for fastening the shaft (6) with the projection (3). The unit having simplified structure, offers the noise reduction by absorbing vertical stress on the moving plate (11) and facilitates the exchange of the worn roll (5).
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