| 摘要 |
A saw blade tensioning arrangement for band saws and like machines which includes a hydraulic cylinder having arranged for movement therein a piston which is intended to activate saw blade tension control means. The blade tension is, in this way, dependent on the hydraulic pressure in the cylinder. The arrangement includes means for pneumatically regulating the hydraulic pressure, these means including a pneumatically operated pressure booster and means for activating the pressure booster at the end of a working stroke of the hydraulic piston, therewith to tension the saw blade to the desired working tension, this working tension being determined, inter alia, by the blade width. |
