| 摘要 |
<p>The device for driving folding arms of comb-like folding means along a closed operating path is used on an interfolding machine 100 for production of interfolded packs of sheets of tissue paper or another material and is mounted on a frame 10a situated in the lower part of the machine 100. A connecting rod-crank transmission assembly 13 is mounted on the frame 10a and connected to the comb-like 2, to drive the latter along the closed operating path. The driving device 10 comprises also a main motor 51, aimed at supplying at least a part of mechanical power necessary to drive the comb-like 2, and a supplementary motor 55, running at a controllable rotation speed, aimed at cooperating with the main motor 11, in driving the comb-like 2. An epicycloidal type differential 20, connected mechanically to the main and supplementary motors 51 and 55, and to the transmission assembly 13 as the combination of the power received at the intakes. A control unit is also provide in the interfolding machine 100 for adjusting the rotation speed induced by the supplementary motor 55 in relation to the position assumed by the folding arms 3 in the above-mentioned operating path.</p> |
