| 摘要 |
1,147,407. Cutting apparatus. CONTINENTAL GUMMI-WERKE A.G. 5 Oct., 1967 [7 Nov., 1966], No. 45438/67. Heading B4B. An apparatus for bevelling the flanks of driving belts 18 of rubber or plastics material comprises fixed and movable pulleys 7, 16 around which a belt 18 passes and rotary disc cutters 23 advanceable towards the belt from both sides thereof, the pulleys being arranged on a carrier 4 rotatable about its longitudinal axis and drivable in dependence upon -the angular position of the carrier relative to the cutters which are displaceable in the longitudinal direction of the carrier. The pulleys are driven from a motor-driven shaft 9 and bevel gears 8 through switching clutches 11 controlled by a cam 13 on the end face of a fixed axle 12 supporting the carrier 4. The pulley 16 is movable towards and away from the pulley 7 by means of a pressure cylinder 17 controlled by a valve 9, or electromagnetic means, the control impulses being scanned by a cam 20 connected to a circular guide 2. When the pulley 16 is moved away from the pulley 7 to tension the belt 18, guide rollers 21 are simultaneously pressed against the flanks of the belt by means of a pressure cylinder 22. The cutters 23 with their driving motors 24 form a unit which is pivotally mounted relative to a slide 25 which is longitudinally adjustable by means of a pressure cylinder 28. The cutters are adjustable longitudinally and laterally by means of hand cranks 26, 27. Pairs of pulleys 7, 16 may be angularly arranged on the carrier 4. |
