| 摘要 |
<p>1,137,988. Corrugating. SOC. NOUVELLE SPIDEM. 8 Feb., 1967 [9 Feb., 1966], No. 5997/67. Heading B3E. A machine for profiling strip metal comprises a pair of parallel shafts constituted by two spindles 19, a sleeve 15, and shaping rollers 16a, 16b, 16c. The spindle is mounted in roller bearings 10, 10a at each end and one bearing housing 1 is fixed and the other housing 2 pivotally connected to the fixed housing so that the gap between the rollers can be adjusted by a screw 4 having opposite or differential threads. The spacing between the rollers is set by a key (7), Fig. 3b (not shown), which is positioned between nuts on the housings. A separate key is provided for each set of rollers. In one embodiment the left-hand side of the upper shaft has a sleeve 12 to which a toothed driving wheel 23 is fixed. The right-hand side of the lower shaft has a similar sleeve 12a and driving wheel. Each roller consists of an integral shaped roller or a series of rollers of different shapes held together by lock-nuts 17, 17a. A support is provided on each bearing housing for centring the sleeve 15 during assembly. The support is pivoted into position about a pivot 21 and held in position by a pin 22. In a similar embodiment the drive wheels are provided at only one side of the pair of shafts. The toothed wheels of the upper shaft also permit declutching so that the drive of the rollers is obtained only from the metal strip. The toothed wheels (25), (26), Fig. 2 (not shown), are normally held fast with each other by a chain (24a). In a further embodiment the driving wheels 23 are mounted on hubs (28) around the end sleeves and a flange (28a) on each hub is engaged with a flange (29) on the sleeve by a pin (35). The flanges on the sleeves are engaged with the central sleeve by dowel pins (33), (33a). To disengage the drive in this embodiment the pins (35) are removed. In an alternative embodiment, Fig. 4a (not shown), the drive between the flanges is achieved by a friction ring (38) and a metal ring (39) on the flanges (29), (28a) respectively. The pressure between the rings is adjustable by a screw (41).</p> |
