| 摘要 |
<p>An arrangement in automatic saw chain grinders of the kind which includes means (30, 47) for feeding the cutter links (36) of a saw chain (22) to be ground to a predetermined grinding location on a chain support (14), and also a movable grinding machine (18, 19) for grinding the cutting edge (53) of a cutter link (36) present in the grinding location. The grinding location is defined by a chain feed and/or stop finger (46) against which the rear edge (40) of the cutter link (36) abuts in the grinding location. The feed means (30, 47) includes a rotating or indexing saw-chain drive mechanism which is driven by an electric motor (32). For the purpose of eliminating the risk of cutting edges being ground wrongly or of the grinding process being interrupted because of irregularities in the link sequence of the saw chain (22), the finger (46) has mounted thereon detecting means (44) for distinguishing between cutter links of right-hand and left-hand configurations and for checking that a cutter link in the grinding location is not displaced therefrom during the course of a grinding operation.</p> |
