| 摘要 |
<p>The roller frame (1) has two rollers (2,3) mounted in a housing (16) between which a nip (4) is formed. The ends of the rollers are supported in rotary fashion in bearings (5-8) and the rollers (2,3) are embodied as an advancing roller. An adjusting system (9) has a rack (10) and a pinion (11) whose teeth engage with the rack and is driven to rotate by a motor (12). The distance between pinion and the rack is changed by changing the tooth engagement depth between them. The pinion and the motor are mounted on the housing with interposition of a replaceable spacer plate.</p> |
